# Hillman #4 Stainless Steel Internal Tooth Lock Washer (70-Pack)

**Brand:** [Hillman](https://shop.coreranger.com/brands/Hillman)
**SKU:** 43790
**Price:** $5.13 · in stock
**URL:** https://shop.coreranger.com/product/hillman-4-stainless-steel-internal-tooth-lock-washer-70-pack-204794742

## Specifications

| Spec | Value |
|---|---|
| Grade | 18-8 Stainless |
| Model # | 43790 |
| Internet # | 204794742 |
| Returnable | 90-Day |
| Store SKU # | 1000530546 |
| Fastener Type | Internal Tooth Lock Washer |
| Finish Family | Stainless Steel |
| Fits Bolt Size | #4 |
| Fastener Plating | Uncoated |
| Outside Diameter | 1/4 in |
| Package Quantity | 70 |
| Washer Thickness | 0.032 in |
| Fastener Material | Stainless Steel |
| Measurement System | Metric |

## Description

Designed with sharp teeth as a great locking mechanism, tooth lock washers create a ratchet action by biting into the material and surfaces they contact. Ideal for situations where potential loosening from corrosion or vibration is a concern, tooth lock washers are used to prevent nuts and bolts from coming loose. These fasteners contain teeth around the inner hole that help bite into the joint material, thus providing a locking feature when tightened beneath a nut. Use with treated lumber in applications with like nuts and bolts of similar diameter.

• Commonly used in applications where 2 pieces of wood are joined
• Teeth extend inward to grip the surface and prevent loosening
• Stainless steel combines a polished look with rust protection