Star Washer (Internal Tooth)

Also known as: Internal Tooth Lock Washer, Shakeproof Washer, Serrated Washer

Washers with internal teeth that bite into bearing surfaces to prevent rotation. Better grip than split lock washers on hardened surfaces.

Quick Specifications

Washer Type

Lock

Category

Washer

Measurement

Imperial, Metric

Dimensions

Inner Diameter (ID)
0.125" - 1.5"
Outer Diameter (OD)
0.236" - 2.5"
Thickness
0.016" - 0.063"

Available Materials

Steel Stainless Steel Zinc Plated

Standards

ASME B18.21.1 DIN 6797

Common Applications

  • + Electrical grounding
  • + Sheet metal fastening
  • + Small screws
  • + Electronics

Not Recommended For

  • - Finished surfaces
  • - Soft materials

Related Fasteners

Lock Washer External Tooth Washer