Screw Service Master

Self-locking washer is a fastener component designed to prevent nuts and bolts from loosening under vibration or torque, using specialized designs like serrated teeth or cammed surfaces to create friction/tension, ensuring secure, long-lasting connections in machinery, automotive, and construction applications. They maintain clamp load, improving joint reliability and preventing equipment failure by resisting movement

A square washer is a flat, metal plate with a square shape and a center hole, designed to fit under bolt/screw heads to distribute load, protect surfaces (especially in wood/timber), prevent pull-through, and offer better stability/grip than round washers, crucial for heavy-duty construction, woodworking, and seismic applications

Wedge lock washers are a two-part, high-tension system that uses angled cams and serrations to create a secure, vibration-proof bolted joint, preventing loosening by using tension (stretching the bolt) rather than friction. They work by locking the fastener in place, maintaining preload even under extreme dynamic loads and vibrations, making them ideal for heavy machinery, automotive, and construction where reliability is critical

A plain washer is a thin, flat, disc-shaped metal plate with a central hole, used to distribute the load of threaded fasteners (bolts, nuts, screws) over a wider area, reducing stress, preventing surface damage (especially in soft materials like wood/plastic), and acting as a spacer or insulator. They're simple, common, and found in various materials (steel, brass, nylon) and finishes (zinc-plated, natural) for diverse applications, ensuring secure, reliable assemblies. Key Characteristics

• Shape: Flat ring with a hole.
• Primary Function: Spreads fastener load, prevents sinking into soft materials, protects surfaces.
• Secondary Functions: Acts as a spacer, reduces friction/heat, provides electrical/thermal insulation.
• Materials: Steel, Stainless Steel (SS202, SS304, SS316), Brass, Nylon.
• Applications: Construction, automotive, plumbing, electronics, general machinery. 

Why Use Them?

• Prevents Damage: Stops fasteners from digging into wood, plastic, or soft metals.
• Ensures Security: Prevents loosening from vibration by creating a larger bearing surface.
• Improves Fit: Fills gaps or acts as a spacer when a bolt is too long.
• Versatile: Available in many sizes, materials, and finishes for specific needs. 

 

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• Plain Washer or Flat Washer - J C Gupta & SonsPlain Washers. A plain washer is a thin plate, which is most commonly has a disk-shape with a hole in middle. It is widely used to...J C Gupta & Sons
• Plain Washer | Bulk Wholesale Supply & Export From IndiaAbout this product. The Plain Washer is an essential component widely used in various industrial and construction applications. Av...GlobalLinker

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A spring washer is a fastener component, often split or conical, designed to maintain tension in bolted assemblies, preventing loosening from vibration or shock by exerting a spring-like force. Made from spring steel, they create constant pressure, absorb shocks, and reduce wear, commonly used in automotive, machinery, and electrical systems.