Product Description
Metric zinc plated steel internal serrated shakeproof washers for locking and anti-vibration fastening applications. These internal tooth lock washers are designed to help resist loosening in bolted and screwed assemblies by biting into the mating surfaces.
Manufactured from zinc plated steel, these shakeproof washers are suitable for automotive, electrical, engineering, machinery and general workshop use. Ideal for use with bolts, screws and studs where added resistance to vibration and loosening is required.
Please select the required metric size and pack quantity from the dropdown options. Specifications are intended as a guide only, so if dimensions are critical it is best to check before ordering.
Thread Type / Size Type: Metric
Material: Zinc Plated Steel
Washer Type: Shakeproof Washer
Tooth Type: Internal Serrated
Function: Locking / Anti-Vibration
Application: Automotive / Electrical / Engineering / Workshop 
| A | B | C |
| 3mm | * | * |
| 5mm | 9mm | 0.5mm |
| 6mm | 11mm | 0.7mm |
| 8mm | 15mm | 0.8mm |
| 10mm | 18mm | 0.9mm |
| 16mm | 26mm | 1.2mm |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.