Tooth Lock Washers

Superior Grip for Secure Fastening

Tooth Lock Washers are engineered to provide maximum locking power for assemblies subjected to vibration, movement, or heavy loads. Featuring internal or external serrated teeth, these washers dig into the mating surfaces to prevent loosening, making them ideal for mechanical, electrical, and automotive applications.

  • Enhanced Grip & Locking Power
    Serrated teeth bite into the bolt head/nut and the mounting surface to resist loosening from vibration or torque.

  • Internal & External Tooth Variants
    Choose internal teeth for aesthetic or compact assemblies, and external teeth for greater locking surface area.

  • Corrosion-Resistant Finishes
    Available in zinc-plated, stainless steel, and other rust-resistant coatings for long-lasting durability.

  • Versatile Application
    Ideal for electrical connections, automotive fastenings, mechanical assemblies, and precision equipment.

  • Compatible with Standard Fasteners
    Works seamlessly with machine screws, bolts, and nuts of matching diameters.

Attribute

Details

Material

Carbon Steel / Stainless Steel

Finishes

Zinc Plated, SS 304/316, Black Oxide

Types

Internal Tooth / External Tooth

Sizes Available

M3 to M30 (custom sizes on request)

Standards

DIN 6797, ANSI B18.21.1, ISO 7089

Application

Locking, Vibration Resistance

  • Electrical terminals and circuit boards

  • Automotive and heavy-duty machinery

  • Electronics, motors, and control panels

  • Construction tools and vibration-prone joints

✅ High locking torque resistance

✅ Prevents fastener loosening under stress

✅ Available in a wide range of sizes and finishes

✅ Manufactured to global quality standards

✅ Ideal for industrial, commercial, and OEM use