ASTM A194 Grade 2H Nut Dimensions, Properties, Materials & Applications Guide

An ASTM A194 Grade 2H Nut is a controlled industrial fastener used in specified high-pressure or high-temperature bolting systems, or both.

Selecting the correct nut requires more than identifying a thread diameter.

A complete technical specification should consider:

ASTM Grade → Mating Bolt/Stud → Diameter → Thread → Nut Style → Dimensions → Material → Heat Treatment → Mechanical Properties → Finish → Testing → Marking → Traceability

For oil & gas, petrochemical, refinery, power-plant and pressure-equipment projects, each of these requirements can affect final acceptance.

Quick Answer: What Is an ASTM A194 Grade 2H Nut?

An ASTM A194 Grade 2H Nut is a heat-treated carbon-steel nut grade within ASTM A194/A194M, a specification covering nuts intended for high-pressure or high-temperature service, or both.

Grade 2H identifies the material/mechanical grade.

It does not independently define every:

Dimension
thread
finish
mating stud
installation requirement

Those must be specified separately.

Current Standard: ASTM A194/A194M-26

The current active edition is:

ASTM A194/A194M-26

ASTM lists it as active and last updated on February 19, 2026.

The specification covers carbon steel, alloy steel and stainless steel nuts intended for high-pressure or high-temperature service, or both.

For current procurement, buyers should verify the edition required by the contract or project specification.

ASTM A194/A194M Size Scope

The current ASTM specification covers carbon, alloy and martensitic stainless-steel nuts in nominal sizes:

1/4″ through 4″

and metric:

M12 through M100

It also covers austenitic stainless-steel nuts from:

1/4″ and M12 nominal upward.

This is the overall ASTM A194/A194M specification scope.

It does not mean every grade, nut style or material condition is automatically applicable to every size.

ASTM A194 Grade 2H vs ASTM A194 Standard

This distinction matters.

ASTM A194/A194M

The complete specification contains multiple material/grade families.

Grade 2H

One specific grade within that specification.

Therefore:

ASTM A194 Nut ≠ Automatically Grade 2H

When Grade 2H is required, the PO should state it clearly.

ASTM A194 Grade 2H vs Heavy Hex Nut

These terms describe different characteristics.

Term	What It Defines
ASTM A194/A194M	Nut material/mechanical specification family
Grade 2H	Specific grade
Heavy Hex	Nut dimensional form
UNC/Other Thread	Thread system
Coating	Surface condition
Mating Stud	Bolting-system compatibility

Therefore, an ASTM A194 Grade 2H Heavy Hex Nut combines multiple requirements.

What Is a 2H Heavy Hex Nut?

A 2H Heavy Hex Nut is a nut specified to:

ASTM A194/A194M Grade 2H material/mechanical requirements, and
The applicable heavy-hex dimensional requirements.

Do not assume Grade 2H alone defines heavy-hex dimensions.

ASTM A194 Controls Material & Mechanical Requirements

ASTM A194/A194M controls important requirements related to areas such as:

Material
chemistry
heat treatment
mechanical testing
hardness
proof-load testing
marking
other grade requirements

The applicable dimensional standard provides the detailed nut geometry.

ASME B18.2.2 Controls Inch Heavy Hex Nut Dimensions

For applicable inch-series heavy hex nuts, ASME B18.2.2-2022 provides the dimensional requirements.

ASME B18.2.2-2022 contains a dedicated table for:

Heavy Hex Nuts and Heavy Hex Jam Nuts

Therefore, for an inch-series ASTM A194 Grade 2H Nut, buyers may need both:

ASTM A194/A194M + ASME B18.2.2

along with the thread and project requirements.

ASTM A194 vs ASME B18.2.2

Requirement	ASTM A194/A194M	ASME B18.2.2
Grade 2H	Yes	No
Material Requirements	Yes	No
Mechanical Requirements	Yes	No
Heavy Hex Geometry	Not the main dimensional source	Yes
Width Across Flats	Refer to applicable dimensional requirement	Yes
Nut Height	Refer to applicable dimensional requirement	Yes
Heavy Hex Nut Tables	Not its primary role	Yes

This is why buyers should not use one standard as a substitute for the other.

A194 2H Nut Dimensions

Important A194 2H Nut Dimensions for a heavy hex product include:

Nominal thread diameter
Thread pitch or threads per inch
Width across flats
Width across corners
Nut height
Bearing surface
Chamfer
Thread dimensions

The controlled dimensional standard should be used for final values and tolerances.

Why We Should Not Copy a Full ASME Dimension Table

A technical blog can explain how dimensions work, but the official standard should remain the final manufacturing and inspection authority.

Using the controlled ASME table helps prevent:

Wrong nut style
old revision errors
transcription errors
incorrect tolerances
mixing regular hex and heavy hex
mixing inch and metric dimensions

This guide therefore explains the dimensional system rather than reproducing the complete copyrighted standard table.

Nominal Thread Diameter

The nominal diameter identifies the mating thread size.

Common inch designations encountered in industrial bolting can include:

1/2″
5/8″
3/4″
7/8″
1″
1-1/8″
1-1/4″
1-1/2″
1-3/4″
2″
Larger sizes within applicable specification requirements

The diameter alone does not complete the specification.

Common Coarse Inch Thread Examples

Common UNC designations include:

Nominal Diameter	Common UNC Thread
1/2″	1/2″-13 UNC
5/8″	5/8″-11 UNC
3/4″	3/4″-10 UNC
7/8″	7/8″-9 UNC
1″	1″-8 UNC
1-1/8″	1-1/8″-7 UNC
1-1/4″	1-1/4″-7 UNC
1-1/2″	1-1/2″-6 UNC

These are thread-designation examples, not a statement that every Grade 2H application must use UNC.

The mating stud/bolt and project specification control.

Example: 1″-8 UNC ASTM A194 Grade 2H Nut

Consider:

1″-8 UNC ASTM A194 Grade 2H Heavy Hex Nut

This identifies:

1″ = nominal thread diameter
8 = threads per inch
UNC = Unified National Coarse thread
ASTM A194 = material/mechanical specification
2H = nut grade
Heavy Hex = nut style

The project may still need to specify:

Dimensional standard
thread class
finish
coating
marking
testing
documentation

Thread Size Does Not Define Grade

A 1-inch nut can be manufactured to different material and mechanical specifications.

Therefore:

1″ Nut ≠ Grade 2H

Likewise:

Grade 2H ≠ One Fixed Diameter

Always define size and grade separately.

Width Across Flats

Width across flats is the distance between two opposite wrenching surfaces.

It determines important practical factors such as:

Wrench size
socket size
tooling
equipment clearance
maintenance access

Heavy hex geometry generally has a larger wrenching envelope than a corresponding regular hex pattern.

Width Across Corners

Width across corners defines the maximum envelope across opposite hex corners.

This matters when the nut is close to:

Flange geometry
piping components
equipment walls
adjacent fasteners
structural members

Tool clearance should also be considered.

Nut Height

Nut height is an axial dimensional requirement.

It affects:

Overall assembly length
thread engagement
stud projection
wrench/socket access
dimensional compliance

But:

Greater Nut Height ≠ Automatically Greater Joint Capacity

The complete bolting system determines performance.

Bearing Surface

The nut bearing surface transfers load into the mating component, flange or washer where applicable.

Its geometry and condition can influence:

Seating
tightening
load transfer
installation

The applicable product standard controls dimensional requirements.

Chamfer

Heavy hex nuts typically include controlled chamfer geometry as defined by the applicable standard.

Chamfer should not be treated as an uncontrolled cosmetic feature.

It forms part of the finished nut geometry.

Heavy Hex vs Regular Hex Dimensions

A heavy hex nut and regular hex nut can have:

The same thread diameter
the same pitch
the same mating stud

while having different external dimensions.

Differences can include:

Width across flats
nut height
width across corners
tool envelope

Therefore, thread compatibility does not make the two styles interchangeable.

Heavy Hex vs Heavy Hex Jam Nut

ASME B18.2.2 distinguishes heavy hex nuts from heavy hex jam nuts.

A jam nut uses a reduced-height configuration.

Do not substitute a heavy hex jam nut for a full-height heavy hex nut solely because:

Diameter matches
thread matches
width across flats appears similar

The approved bolting specification controls.

Inch vs Metric ASTM A194 Grade 2H Nuts

ASTM A194/A194M is expressed in inch-pound and SI systems.

ASTM states that the values in each system are to be regarded separately as standard.

They may not be exact equivalents.

Therefore:

Do not mix inch and metric values in one uncontrolled specification.

Inch Specification Example

A typical inch requirement may begin:

1″-8 UNC ASTM A194 Grade 2H Heavy Hex Nut

Then add:

Applicable dimensional standard
finish
testing
marking
documentation

Metric Specification Example

A metric procurement description should identify:

M Diameter × Pitch + ASTM A194M Grade Requirement + Nut Style + Finish + Mating Fastener

Do not simply convert an inch Grade 2H nut to the nearest metric diameter.

ASTM A194 Grade 2H Material

Grade 2H belongs to the carbon-steel nut family under ASTM A194/A194M.

It should not be described as:

Stainless steel
inherently corrosion resistant
a generic alloy-steel grade

The applicable Grade 2H requirements control chemistry, heat treatment and mechanical condition.

Grade 2H Material Is Not Selected by Appearance

A Grade 2H heavy hex nut can visually resemble another industrial heavy hex nut.

Appearance cannot confirm:

Chemistry
Grade
heat treatment
hardness
proof-load compliance

Material certification, testing and traceability are required where specified.

Material Chemistry

Chemical composition is part of material control.

The manufacturer should maintain traceability between applicable:

Raw Material → Heat Number → Production Lot → Finished Nut

For critical industrial procurement, the MTC or equivalent documentation should correspond to the supplied material.

Why Chemistry Matters

Chemistry affects:

Heat-treatment response
mechanical properties
manufacturability
material compliance

However, chemistry alone does not prove finished Grade 2H compliance.

Finished product requirements must also be satisfied.

ASTM A194 Grade 2H Heat Treatment

Grade 2H requires controlled heat treatment according to the applicable ASTM requirements.

Heat treatment is a critical part of achieving the specified mechanical condition.

A manufacturer’s process control can include:

Furnace identification
production batch
heat-treatment lot
process records
post-treatment hardness
mechanical testing
traceability

Heat Treatment Cannot Be Confirmed Visually

Two nuts can look identical while having different:

Material
heat-treatment condition
hardness
mechanical performance

Therefore, visual inspection cannot replace mechanical verification.

ASTM A194 Grade 2H Properties

Important properties and compliance characteristics can include:

Material chemistry
heat-treated condition
hardness
proof-load performance
thread compliance
dimensional compliance
marking
traceability

The controlled ASTM edition provides the actual acceptance requirements.

ASTM A194 Grade 2H Hardness

Hardness is one of the important mechanical controls for Grade 2H.

But a common procurement mistake is:

“Higher hardness means better quality.”

That is incorrect.

A Grade 2H nut must satisfy the specified requirements, including applicable upper and lower limits.

Hardness Is Not Strength Grade by Itself

Hardness testing does not independently prove:

Correct chemistry
proof-load compliance
thread quality
dimensional compliance
correct heat treatment history

Use hardness as one part of the complete quality system.

ASTM A194 Grade 2H Proof Load

Proof-load testing evaluates the finished nut under a prescribed axial test.

It is an important mechanical verification for applicable Grade 2H products.

The controlled ASTM specification defines the required procedure and acceptance criteria.

Proof Load vs Working Load

These terms must not be confused.

Proof Load

A standardized mechanical test requirement.

Working Load

An engineering/service-design concept for the actual joint or equipment.

Therefore:

Nut Proof Load ≠ Allowable Flange Load

and:

Nut Proof Load ≠ Safe Working Load of the Joint

Cone Proof Load

ASTM A194/A194M also includes cone proof-load testing within its mechanical testing framework.

The exact applicability, method and acceptance requirements should come from the controlled current specification.

Do not replace the official test method with an internet summary.

Chemistry vs Hardness vs Proof Load

Requirement	Main Purpose
Chemistry	Verify material composition
Heat Treatment	Establish required material condition
Hardness	Verify specified mechanical condition
Proof Load	Verify finished nut performance under prescribed loading
Dimensions	Verify product geometry
Thread	Verify mating compatibility
Marking	Identify product/grade
Traceability	Connect product to manufacturing/testing records

Complete compliance requires the applicable combination.

ASTM A194 Grade 2H Marking

Marking provides important identification for industrial bolting.

The applicable ASTM requirements should be followed for:

Grade identification
manufacturer identification
other required markings

where applicable.

Why Marking Matters

Different industrial nut grades can look nearly identical.

Marking helps field and receiving teams distinguish:

Grade
source
lot documentation

But marking alone does not prove compliance.

It must correspond to the certified material and production lot.

Grade Substitution

ASTM states that grade substitutions without purchaser permission are not allowed.

Therefore, when an RFQ specifies:

ASTM A194 Grade 2H

the supplier should not silently provide another A194 grade.

Even an apparently “higher” grade requires proper approval before substitution.

Why Stronger Is Not Automatically Better

Another grade may have different:

Chemistry
heat treatment
hardness
temperature behaviour
corrosion characteristics
marking
project approval

The engineering specification controls the grade.

ASTM A194 Grade 2H and ASTM A193 B7

One widely encountered industrial bolting combination is:

ASTM A193 Grade B7 Stud + ASTM A194 Grade 2H Nut

This combination is common in specified pressure and process bolting systems.

But it should not be converted into a universal rule.

The project piping class, equipment specification and design requirements determine the approved combination.

Mating Stud Compatibility

Before selecting an ASTM A194 Grade 2H Nut, confirm:

Stud/bolt specification
stud/bolt grade
nominal diameter
pitch/TPI
thread series
finish
service requirements

A Grade 2H nut should not be selected independently from the mating fastener.

Thread Fit Does Not Prove Compatibility

A nut may thread smoothly onto a stud and still have the wrong:

Grade
hardness
proof-load capability
material
heat treatment
finish

Therefore:

Thread Fit ≠ Mechanical Compatibility

ASTM A194 Grade 2H Surface Finish

The grade designation does not automatically define one surface finish.

Depending on the approved project specification, Grade 2H nuts may be supplied in an applicable:

Plain condition
coated condition
other specified finish

Finish must be compatible with the mating fastener and service environment.

Plain Grade 2H Nuts

Plain nuts still require complete control of:

Material
heat treatment
hardness
proof load
dimensions
thread
marking
traceability

“Plain” only describes surface condition.

Coated Grade 2H Nuts

For coated nuts, evaluate:

Coating Type → Service Temperature → Corrosion Environment → Thread Fit → Mating Stud Finish → Lubrication → Installation

Do not select coating only from appearance or colour.

High Temperature and Coating Selection

A coating suitable for outdoor corrosion protection may not be suitable for every elevated-temperature application.

Verify:

Service temperature
process environment
coating specification
coating limitations
mating fastener
installation procedure

ASTM A194 Grade 2H Is Not Corrosion Proof

Grade 2H is a carbon-steel nut grade.

It should not be advertised as inherently:

Corrosion proof
seawater proof
chemical proof
stainless

Corrosion resistance depends on the approved material/coating system and actual environment.

ASTM A194 Grade 2H Applications

Grade 2H nuts can be used in approved industrial bolting systems for applications such as:

Oil & gas
Petrochemical plants
Refineries
Power plants
Process piping
Pressure equipment
Valves
Flanged joints
Heat exchangers
Industrial process equipment

The application alone does not determine the grade.

Grade 2H Nuts in Oil & Gas

Oil and gas projects can require strict control of:

Bolting material
temperature
pressure
corrosion protection
traceability
testing

Use the approved material class or equipment specification.

Grade 2H Nuts in Petrochemical Plants

Petrochemical systems can include many different operating conditions.

Do not assume all piping within one plant uses the same nut grade.

Selection should follow the piping material specification.

Grade 2H Nuts in Refineries

Refinery applications can include:

Process piping
pressure equipment
heat exchangers
valves
flange connections

Each service can have different bolting requirements.

Grade 2H Nuts in Power Plants

Power-plant bolting can involve different temperature and pressure conditions.

Grade 2H should be used only where the approved bolting specification calls for it.

Grade 2H Nuts for Pressure Equipment

Pressure equipment can require controlled:

Stud material
nut material
thread
bolt load
temperature capability
documentation

The equipment design code and project specification remain the final authority.

Grade 2H Nuts for Flange Bolting

For a flange assembly, nut selection should be coordinated with:

Flange specification
stud specification
gasket
design pressure
design temperature
lubricant where specified
tightening procedure

The nut is only one part of the bolted joint.

Grade 2H Nut Tightening

There is no universal tightening torque for an ASTM A194 Grade 2H Nut based only on diameter.

Torque depends on:

Mating stud
stud grade
thread
finish
lubricant
friction
target bolt load
flange/gasket system
installation method

Avoid Generic Grade 2H Torque Charts

A statement such as:

1″ Grade 2H Nut = X Nm

is incomplete unless the entire bolting system and installation conditions are defined.

For pressure equipment, use the approved engineering tightening procedure.

Torque vs Bolt Tension

Torque

Rotational input applied during tightening.

Bolt Tension

Axial tensile force developed in the stud/bolt.

Friction strongly affects the relationship between the two.

This is why coating and lubricant matter.

ASTM A194 Grade 2H Nut Inspection

A practical inspection plan can include:

Material → Chemistry → Dimensions → Thread → Heat Treatment → Hardness → Proof Load → Finish → Marking → Traceability

The exact sequence depends on manufacturing and project requirements.

Critical-to-Quality Characteristics

CTQ	Why It Matters
ASTM Grade	Correct product specification
Material Chemistry	Material verification
Heat Treatment	Mechanical condition
Hardness	Grade verification
Proof Load	Mechanical verification
Thread	Stud compatibility
Heavy Hex Dimensions	Product geometry
Finish	Service/assembly compatibility
Marking	Product identification
Traceability	Project documentation

Dimensional Inspection

For a 2H Heavy Hex Nut, dimensional inspection can include:

Width across flats
nut height
width across corners
bearing surface
chamfer
thread

Acceptance should follow the controlled dimensional standard or approved drawing.

Thread Inspection

Thread inspection should use appropriate calibrated gauges for the specified thread system.

Check the final supplied condition, particularly where subsequent processing can affect threads.

Mechanical Testing

Applicable mechanical verification can include:

Hardness
proof-load testing
cone proof-load testing
other specified requirements

Use the current ASTM specification for the actual test methods and acceptance criteria.

Traceability

For critical oil & gas and pressure-equipment procurement, maintain linkage such as:

Raw Material Heat → Production Lot → Heat Treatment → Test Results → Finished Nut → Packing

This helps connect the physical product to its documentation.

Documentation for ASTM A194 Grade 2H Nuts

Depending on the PO/project, buyers may request:

☐ MTC/RMTC
☐ Chemical Test Report
☐ Hardness Report
☐ Proof-Load Report
☐ Heat-Treatment Records where required
☐ Dimensional Inspection Report
☐ Thread Inspection Report
☐ Coating Report where applicable
☐ Heat/Lot Traceability
☐ Certificate of Conformity
☐ ITP Records
☐ TPI Release where required

Common Grade 2H Specification Mistakes

Avoid:

Specifying only “2H Nut.”
Assuming Grade 2H automatically means heavy hex.
Ordering only by diameter.
Ignoring the mating stud.
Mixing inch and metric values.
Using old copied dimension charts without checking the standard.
Approving only from hardness.
Treating proof load as joint working load.
Assuming Grade 2H is stainless.
Assuming Grade 2H is corrosion proof.
Selecting coating without considering temperature.
Changing grade without purchaser approval.
Using generic torque values.
Treating thread fit as complete compliance.
Losing heat/lot traceability.

ASTM A194 Grade 2H Nut Selection Workflow

Step 1

Identify the equipment/application.

Step 2

Check design pressure and temperature.

Step 3

Identify the mating stud/bolt specification.

Step 4

Confirm stud/bolt grade.

Step 5

Confirm inch or metric system.

Step 6

Confirm diameter.

Step 7

Confirm pitch/TPI and thread requirements.

Step 8

Confirm ASTM A194 Grade 2H requirement.

Step 9

Confirm heavy hex or other required nut style.

Step 10

Confirm dimensional standard.

Step 11

Confirm finish/coating.

Step 12

Confirm mechanical testing.

Step 13

Confirm marking.

Step 14

Confirm traceability/documentation.

Step 15

Confirm installation procedure.

RFQ Example: Grade 2H Heavy Hex Nut

Product: Heavy Hex Nut
Standard: ASTM A194/A194M
Grade: 2H
Size: 1″
Thread: 1″-8 UNC
Dimensions: Applicable ASME heavy hex requirement
Mating Stud: ASTM/project specification attached
Application: Refinery process piping
Finish: Project specification
Testing: ASTM + approved ITP
Traceability: Heat/lot required
Documents: MTC + mechanical report + DIR
Quantity: 50,000 pcs

What Material Is ASTM A194 Grade 2H?

ASTM A194 Grade 2H is a heat-treated carbon-steel nut grade within ASTM A194/A194M. It should not be confused with stainless-steel or generic alloy-steel nut grades.

What Are A194 2H Nut Dimensions?

A194 2H Nut Dimensions depend on the required nut style and dimensional standard. For applicable inch-series heavy hex nuts, important dimensions include thread diameter, width across flats, width across corners, nut height and bearing geometry under ASME B18.2.2.

Is ASTM A194 Grade 2H Always Heavy Hex?

No. Grade 2H defines material and mechanical requirements, while heavy hex defines geometry. The purchase specification should clearly identify the required nut style.

What Standard Defines 2H Heavy Hex Nut Dimensions?

For applicable inch-series heavy hex nuts, ASME B18.2.2-2022 provides dimensional requirements. ASTM A194/A194M controls the Grade 2H material and mechanical requirements.

What Is the Current ASTM A194 Edition?

ASTM A194/A194M-26 is the current active edition as of September 2026. It covers carbon, alloy and stainless-steel nuts intended for high-pressure or high-temperature service, or both.

Is Grade 2H Corrosion Resistant?

Grade 2H is a carbon-steel nut grade and should not be considered inherently corrosion resistant. Corrosion protection depends on the approved coating/material system and service environment.

Is Hardness Enough to Approve a Grade 2H Nut?

No. Complete compliance can also involve chemistry, heat treatment, proof-load performance, dimensions, thread, marking and traceability.

Can ASTM A194 Grades Be Substituted?

ASTM A194/A194M does not allow grade substitution without purchaser permission. Any proposed grade change should therefore be reviewed and approved before supply.

Buyer Checklist Before Ordering ASTM A194 Grade 2H Nuts

Confirm:

☐ Application
☐ Equipment specification
☐ Design pressure
☐ Design temperature
☐ ASTM A194/A194M edition
☐ Grade 2H
☐ Mating bolt/stud specification
☐ Mating bolt/stud grade
☐ Inch or metric
☐ Nominal diameter
☐ Pitch/TPI
☐ Thread series/class
☐ Heavy hex requirement
☐ Dimensional standard
☐ Width across flats requirement
☐ Nut height requirement
☐ Material requirements
☐ Chemistry
☐ Heat treatment
☐ Hardness
☐ Proof-load requirement
☐ Cone proof-load requirement where applicable
☐ Surface finish
☐ Coating/service compatibility
☐ Lubrication where specified
☐ Marking
☐ Manufacturer identification
☐ Thread inspection
☐ Dimensional inspection
☐ Mechanical testing
☐ Heat/lot traceability
☐ MTC/RMTC
☐ Mechanical test reports
☐ DIR
☐ Coating report where applicable
☐ CoC
☐ ITP
☐ TPI
☐ Packing
☐ Quantity

Conclusion: Grade 2H Requires More Than Correct Dimensions

An ASTM A194 Grade 2H Nut cannot be selected or approved only from diameter, external dimensions or hardness.

A controlled specification follows:

Service → Mating Stud → Thread → Grade 2H → Heavy Hex Dimensions → Material → Heat Treatment → Mechanical Testing → Finish → Installation → Traceability

Remember these key distinctions:

ASTM A194 Grade 2H = Material & Mechanical Grade

Heavy Hex = Dimensional Form

Correct Dimensions ≠ Complete Grade Compliance

Hardness Pass ≠ Complete ASTM Compliance

Thread Fit ≠ Mechanical Compatibility

Proof Load ≠ Joint Working Load

B7 + 2H = Common Specified Combination, Not Universal

High Temperature ≠ Automatically Grade 2H

For oil & gas, petrochemical, refinery, power-plant and pressure-equipment applications, the complete bolting specification should control procurement and approval.

Rajal Industries can evaluate customer and project requirements for ASTM A194 Grade 2H Nuts, 2H Heavy Hex Nuts and related industrial bolting components, subject to technical feasibility, material availability, manufacturing process, heat treatment, testing, applicable standards and customer/project approval.

Need ASTM A194 Grade 2H Nuts for an Industrial Project?

Send Rajal Industries:

ASTM Edition + Grade + Mating Stud Specification + Size/Thread + Heavy Hex Requirement + Finish + Testing + ITP + Documentation + Quantity

for technical feasibility and quotation review.