Description
Overview:
This pack of 500 Form A Flat Washers is designed for dependable load spreading and surface protection in mechanical assemblies. Manufactured from zinc-plated steel, they offer solid corrosion resistance and a smooth, stable bearing surface under nuts, bolts, or threaded rod. Each washer has an internal diameter (ID) of 10 mm (0.39 inches) and a thickness of 1.9 mm (0.075 inches), meeting BS4320 Form A requirements. Suitable for M10 fixings, they help prevent damage to painted, plated, or softer materials. Ideal across construction and garden machinery, including mowers, compactors, generators, tillers, and workshop fixtures, where consistent clamping and long service life are important. A practical choice for both site and workshop use where reliability, consistency, and stock efficiency matter.
Key Features:
- Internal diameter: 10 mm (0.39 inches)
- Thickness: 1.9 mm (0.075 inches)
- BS4320 Form A compliance for consistent sizing and performance
- Zinc-plated steel for enhanced corrosion resistance and durability
- Provides an even bearing surface to spread load and protect substrates
- Helps prevent loosening, fretting, and surface indentation under fasteners
- Suitable for M10 bolts, nuts, and threaded rod in general engineering tasks
- Smooth flat faces for reliable seating with minimal marking
- Pack of 500 for efficient stocking on site or in the workshop
- Versatile for metal, timber, and composite assemblies in varied environments
- Reliable choice for maintenance, repair, and new builds
- Manufacturer Part Number (MPN): 915204
Typical Applications:
Commonly used for panel mounting, bracket fixing, machinery guards, motor bases, mower decks, engine frames, and equipment enclosures. Effective under bolt heads and nuts to protect coatings, spread clamping force on softer materials, and pair with rubber bushes or spacers for vibration-prone assemblies. Suitable for construction plant, garden machinery, trailers, shelving, and workshop jigs.
Also known as:
Plain washers, BS4320 Form A washers, flat shims, spacing washers, load-spreader washers, M10 flat washers, steel flat washers, zinc-plated flat washers. Sometimes informally referred to as spacers in light-duty setups where minor stand-off or packing is needed.
Product Specifications
| L&S Part No. | 903 0840 |
|---|---|
| OEM No. | 915204 |
| Unit of Sale | Pack of 500 |
| Key Features | - Internal diameter: 10 mm, thickness: 1.9 mm - Zinc-plated steel for corrosion resistance - Complies with BS4320 Form A standards - Suitable for M10 bolts, nuts, and threaded rods - Pack of 500 for efficient stocking |
