Description
Overview:
This assorted box contains 1000 internal and external lock washers designed to stop nuts and bolts from working loose under vibration. Made from durable steel with toothed profiles that bite into the mating surfaces, they help maintain clamp force in assemblies across construction, automotive, agricultural, and garden machinery. The selection covers six common bolt sizes: 3/16 in (4.76 mm), 1/4 in (6.35 mm), 5/16 in (7.94 mm), 3/8 in (9.53 mm), 7/16 in (11.11 mm), and 1/2 in (12.7 mm). Use internal-tooth washers where a neat edge is preferred around the bolt head or nut, and external-tooth washers where a larger outside diameter improves grip on softer or painted surfaces. Supplied under MPN 105 129 for straightforward identification and reordering.
Key Features:
- Mixed internal- and external-tooth styles for flexible use across different joint types
- Six popular sizes from 3/16 in (4.76 mm) to 1/2 in (12.7 mm) to cover everyday fastening tasks
- Toothed design helps resist loosening from shock, vibration, and thermal cycling
- Durable steel construction for consistent bite and long service life
- Works with standard hex bolts, set screws, machine screws, and nuts
- No special tools required-fit during normal assembly or maintenance
- Useful where split/spring washers are unsuitable or insufficient
- Organised assortment box for quick selection and reduced downtime
- Suitable for steel, aluminium, and plated surfaces when correct torque is applied
- Practical stock item for site kits, workshops, vans, and maintenance stores
Typical Applications:
General fastening on machinery panels and guards, small engines, mowers, generators, pumps, compressors, trailers, agricultural implements, control boxes, brackets, and fixtures. Ideal for service and repair tasks where joints are prone to vibration, including plant hire equipment, workshop jigs, fabrication, and light automotive fixes. Useful as a preventative measure on new builds and retrofits alike.
Also known as:
Star washers, serrated lock washers, tooth lock washers, internal tooth washers, external tooth washers, bite washers, anti-vibration washers, security washers. These terms describe the same toothed fastening washers used to improve joint security and maintain clamping force under movement.
Product Specifications
| L&S Part No. | 105 129 |
|---|---|
| Unit of Sale | 1000 Pieces |
| Size | i.d. Sizes: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" |
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