Rajal Industries

Introduction to Non-Threaded Fasteners

Non-threaded fasteners play a crucial role in various industries, providing secure and reliable connections without the need for threading. At Rajal Industries, we offer a wide range of high-quality non-threaded fasteners designed to meet diverse application requirements. Here are some key points about our non-threaded fasteners:

Washers: Types and Functionalities

1) Flat Washers:

These are used to distribute the load of a threaded fastener, such as a bolt or screw, and prevent damage to the surface being fastened. They come in various sizes and materials, including steel, stainless steel, and rubber, to suit different applications.

2) Lock Washers:

Designed to prevent fastening systems from loosening due to vibration. Split lock washers and tooth lock washers are common types, offering an added layer of security in high-vibration environments.

3) Specialty Washers:

Including Belleville washers, which apply a spring force and maintain tension in bolted joints. These washers are crucial in applications requiring precise load distribution and where thermal expansion may affect bolt tension.

Nails: Utility and Diversity

- Nails are fundamental fasteners in construction and carpentry. Types include common nails for general construction, finishing nails with a small head for a discreet appearance, and roofing nails designed for attaching shingles.

- Material choice and size are paramount, with options ranging from galvanized steel for outdoor use to aluminum or copper for specific environments. The length and gauge of the nail are selected based on the thickness and type of material being fastened.

Stamped Parts: Custom Solutions in Fastening

- Stamped parts, created through the stamping process from metal sheets, are used for custom fastening solutions. They include brackets, clips, and connectors, tailored to specific requirements in various applications.

- The versatility of stamped parts is evident in their customization potential, meeting unique specifications for thickness, strength, and durability. They are widely used in automotive, electronics, and construction industries.

Rivets, Pins, and More: The Backbone of Non-Threaded Fastening

- Rivets: Permanent fasteners ideal for joining metal sheets. Types include solid rivets for structural applications and pop rivets for easy installation in inaccessible areas.

- Pins: Dowel pins for alignment, cotter pins for securing bolts, and spring pins for securing components. Each type is chosen for its specific application based on strength and ease of installation.

Clips and Clamps, Adhesives, and Retaining Rings: Versatile and Reliable

- Clips and Clamps: Used for temporary or permanent fastening, such as hose clamps in plumbing and spring clips in automotive applications.

- Adhesives and Sealants: Provide bonding and sealing solutions, crucial in applications ranging from automotive assembly to electronic device manufacturing.

- Retaining Rings: Secure components onto shafts or within housings, essential for precision assemblies in mechanical and electronic devices.

Anchors: Essential in Construction and Masonry

- Anchors, like wedge and sleeve anchors, provide secure fastening solutions in concrete and masonry. Their design allows for strong anchorage, making them indispensable in construction.

Material Considerations and Performance Parameters

- Material selection for non-threaded fasteners is guided by factors like environmental conditions, strength requirements, and corrosion resistance. This includes metals like steel and aluminum, as well as plastics and composites for specific needs.

- Performance parameters like load-bearing capacity, tensile strength, and thermal resistance are crucial in determining the suitability of a fastener for a particular application.

Applications Across Diverse Industries

- Non-threaded fasteners are vital in industries such as construction, automotive, aerospace, and electronics. They provide solutions for assembly, structural integrity, and component mounting, demonstrating their versatility and indispensability.

Installation Techniques and Tools

- Proper installation of non-threaded fasteners requires specific tools and techniques. For example, nail guns for nails, rivet guns for rivets, and appropriate adhesives for bonding applications. The correct installation ensures maximum efficacy and longevity of the fastener.

Maintenance, Inspection, and Innovations

- While non-threaded fasteners generally require less maintenance than their threaded counterparts, regular inspection is key to ensuring their integrity and performance. Innovations in material science and manufacturing processes continue to enhance the capabilities and applications of these fasteners.


Non-threaded fasteners, encompassing a diverse range of products like washers, nails, stamped parts, and more, are fundamental to various assembly processes. Understanding their types, applications, and installation techniques is crucial for professionals in manufacturing, construction, and maintenance sectors. This guide provides an exhaustive overview, underlining the significance and versatility of non-threaded fasteners in modern industry.