Description
Overview:
Form A Flat Washers in zinc-plated steel with a 30 mm inner diameter are heavy-duty plain washers used to spread the load beneath bolt heads and nuts, protecting the mating surface and improving joint stability. The Form A pattern offers a standard outside diameter with a robust thickness suited to demanding assemblies in construction plant, workshop fixtures, and garden machinery. Zinc plating provides reliable corrosion resistance for outdoor and on-site environments. Sized for 30 mm nominal diameter fasteners (commonly M30), these washers help achieve consistent clamping force and reduce surface damage on steel, aluminium, or painted parts. Supplied in a practical pack of 25 for maintenance and assembly work. Part of a wider size range from 3 mm to 30 mm. Manufacturer Part Number: 903 0847.
Key Features:
- Heavy-duty Form A pattern for robust clamping under high loads
- Zinc-plated steel for enhanced corrosion resistance in harsh conditions
- 30 mm I.D. sized for M30 bolts, nuts, and threaded studs
- Distributes load to prevent surface indentation and pull-through
- Smooth, flat bearing faces support even torque and stable preload
- Deburred edges to reduce scratching of finished or softer materials
- Suitable with bolts, set screws, and through-studs across many fixtures
- Reliable in construction, agricultural, and garden machinery maintenance
- Reusable when undamaged, aiding cost-effective repairs
- Supplied as a 25-pack for convenient stocking in site kits and workshops
Typical Applications:
Load-spreading under bolt heads and nuts on brackets, guards, engine mounts, base plates, pump housings, gearboxes, mower decks, and hydraulic components. Useful for assembling fixtures to steel frames, aluminium panels, or timber backings. Common in construction equipment repairs, garden machinery servicing, plant fabrication, and general MRO tasks where consistent clamping and surface protection are required.
Also known as:
Plain washers, Form A plain washers, flat spacers, shim washers, round shims, spreader washers, metal flat washers, load-distribution washers. These terms describe flat, circular components used beneath fasteners to protect surfaces and stabilise joints.
Product Specifications
| L&S Part No. | 903 0847 |
|---|---|
| Unit of Sale | Pack of 25 |
| Key Features | - Form A pattern for robust clamping under high loads - Zinc-plated steel for corrosion resistance - 30 mm inner diameter for M30 fasteners - Distributes load to prevent surface indentation - Supplied in a 25-pack for convenient stocking |


