Exploring Screw
Categories
Types
Features
Applications
Screws are versatile fasteners used in a wide range of applications, from woodworking and construction to electronics and automotive industries. They come in various head shapes, thread patterns, and materials, each designed for specific purposes. Understanding different screw types ensures proper selection for durability, strength, and efficiency in fastening solutions.
Machine Screws
Machine Screws are high-precision threaded fasteners designed for secure assembly in metal, plastic, and composite materials. These screws are commonly used in electronics, automotive, industrial machinery, and appliance manufacturing, offering consistent torque application and high-strength engagement.
At Rajal Industries, we manufacture ISO, ASME, and DIN-compliant machine screws with accurate threading, uniform head styles, and high-strength materials, ensuring long-lasting performance in high-precision applications.
Self-Tapping Screws
Self-Tapping Screws are specialized fasteners designed to cut their own threads into metal, plastic, and wood without requiring pre-tapped holes. These screws provide high retention strength, secure fastening, and vibration resistance, making them ideal for automotive, electronics, construction, and industrial manufacturing applications.
At Rajal Industries, we manufacture ISO, ASME, and DIN-compliant self-tapping screws with accurate thread profiles, multiple head styles, and high-strength materials, ensuring long-term performance and reliability.
Chipboard Screws
Chipboard Screws are specialized fasteners designed for secure fastening in wood-based materials such as particleboard, MDF (Medium Density Fiberboard), and chipboard. Featuring deep, coarse threads and sharp tips, these screws provide maximum holding strength and reduced splitting, making them ideal for furniture manufacturing, cabinetry, and woodworking applications.
At Rajal Industries, we manufacture high-quality chipboard screws that conform to ISO standards and woodworking industry requirements, ensuring superior pull-out resistance, fast penetration, and durable performance.
Drywall Screws
Drywall Screws are specialized fasteners designed for securing drywall panels to wood or metal framing while providing high holding strength, resistance to stripping, and quick penetration. Their sharp threads and bugle head design ensure a flush finish, making them ideal for interior construction, partition walls, and ceiling applications.
At Rajal Industries, we manufacture precision-engineered drywall screws that conform to ASTM and industry-specific standards, ensuring strong grip, smooth installation, and long-term durability.
SEMS Screws
SEMS Screws are pre-assembled fasteners that combine a screw and a washer in a single unit, offering faster assembly, improved load distribution, and reduced risk of washer loss. These screws provide high resistance to loosening from vibration, making them ideal for automotive, electronics, industrial machinery, and structural applications.
At Rajal Industries, we manufacture precision-engineered SEMS screws that conform to ISO and ASME standards, ensuring high tensile strength, ease of installation, and long-lasting performance.
Coach Screws
Coach Screws, also known as lag screws or lag bolts, are heavy-duty fasteners designed for strong and secure fastening in wood, masonry, and structural applications. These screws feature a hexagonal head and deep coarse threads, ensuring high grip strength, resistance to pull-out, and enhanced load-bearing capacity.
At Rajal Industries, we manufacture high-performance coach screws that conform to DIN and ASME standards, offering superior strength, long-term durability, and ease of installation in construction, carpentry, and heavy engineering applications.
Countersunk Torx Screws
Countersunk Torx Screws are specialized fasteners designed for secure, high-torque fastening with a flush surface finish. Their Torx drive system offers higher torque transfer, reduced cam-out, and improved durability, making them ideal for automotive, aerospace, electronics, furniture, and industrial applications.
At Rajal Industries, we manufacture precision-engineered countersunk Torx screws that conform to ISO standards and general screw specifications, ensuring exceptional grip, precision fitment, and long-term reliability.
Hex Flange Self-Tapping Screws
Hex Flange Self-Tapping Screws are specialized fasteners designed for quick and secure installation in metal, plastic, and wood without requiring pre-drilled holes. The hexagonal flange head with an integrated washer provides improved load distribution and resistance to loosening, making these screws ideal for automotive, industrial machinery, construction, and sheet metal applications.
At Rajal Industries, we manufacture precision-engineered Hex Flange Self-Tapping Screws that conform to DIN and general self-tapping standards, ensuring high tensile strength, optimal thread engagement, and long-term performance.
Security Screws
Security Screws are specialized fasteners designed to prevent unauthorized tampering and removal, ensuring high-security fastening in sensitive applications. These screws feature unique head designs that require specialized tools for installation and removal, making them ideal for electronics, public infrastructure, transportation, correctional facilities, and defense applications.
At Rajal Industries, we manufacture precision-engineered security screws that conform to ISO standards and general security fastening specifications, ensuring maximum protection against tampering, durability, and secure installation.
Captive Panel Screws
Captive Panel Screws are specialized fasteners designed to remain attached to the panel even when loosened, preventing loss and ensuring quick, tool-assisted access to electronic enclosures, industrial panels, and machinery covers. These screws provide secure fastening while allowing easy removal for maintenance, making them ideal for aerospace, telecommunications, medical devices, and electronics.
At Rajal Industries, we manufacture precision-engineered Captive Panel Screws that conform to ASME and general fastening standards, ensuring high durability, vibration resistance, and long-lasting performance.
Knurled Thumb Screws
Knurled Thumb Screws are manually adjustable fasteners designed for quick and tool-free installation or removal. Featuring a knurled head for enhanced grip, these screws allow hand-tightening, making them ideal for electronics, industrial equipment, fixtures, and precision instruments where frequent adjustments or secure hand-tightening is required.
At Rajal Industries, we manufacture precision-engineered Knurled Thumb Screws that conform to DIN and general fastening standards, ensuring high durability, grip efficiency, and long-term performance.
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