External Tooth Lock Washer

Also known as: External Star Washer, Serrated Lock Washer

Washers with external teeth that bite into mating surfaces. Greater holding power than internal tooth versions, visible when installed.

Quick Specifications

Washer Type

Lock

Category

Washer

Measurement

Imperial, Metric

Dimensions

Inner Diameter (ID)
0.125" - 1.5"
Outer Diameter (OD)
0.312" - 3"
Thickness
0.016" - 0.063"

Available Materials

Steel Stainless Steel Zinc Plated

Standards

ASME B18.21.1 DIN 6798

Common Applications

  • + Oversized holes
  • + Electrical connections
  • + Grounding
  • + Heavy vibration

Not Recommended For

  • - Finished surfaces
  • - Where appearance matters

Related Fasteners

Star Washer Lock Washer