Description
Overview:
These Form A Stainless Steel Washers are flat, circular washers with a 12 mm inner diameter (approx. 0.47 in) for general heavy-duty fastening. Made from corrosion-resistant stainless steel with a natural metallic finish, they spread load, reduce surface damage, and provide a smooth bearing face under bolt heads and nuts. Suitable for use across construction, plant, agricultural, and garden machinery, they help keep assemblies tight in demanding environments, indoors or outdoors. The Form A pattern offers a standard outside diameter profile for everyday engineering use. Supplied in a practical pack of 50 for workshop and site jobs, and identified by MPN 994103, they are a solid choice for repairs, maintenance, and new builds where reliability and long service life matter.
Key Features:
- Stainless steel construction for strong corrosion resistance in wet, dirty, or coastal conditions
- Heavy-duty performance to support higher clamping loads and resist deformation
- Form A pattern for consistent fit and standardised sizing across applications
- 12 mm I.D. (approx. 0.47 in) for use with similarly sized fastener shanks and through-holes
- Smooth bearing surface helps protect substrates and improves torque consistency
- Helps prevent pull-through on softer materials such as aluminium, timber, and plastics
- Neat, low-profile appearance suitable for visible assemblies
- Supplied as a pack of 50 to cover multiple tasks and spares on site
- Available across common sizes from 3 mm (approx. 0.12 in) to 24 mm (approx. 0.94 in), supporting a wide range of fasteners
Typical Applications:
General machinery assembly, plant and site equipment, agricultural implements, garden machinery, racking and brackets, fencing hardware, flanged joints, electrical enclosures, metalwork, joinery, and repairs. Ideal wherever a flat bearing face is needed to distribute clamping force, protect surfaces, and maintain joint integrity under vibration, weather, and regular use.
Also known as:
Form A flat washer, plain washer, stainless steel flat washer, spacer washer, shim washer, load-spreading washer, bearing washer, fixing washer. These terms refer to flat, round washers used under bolt heads and nuts to improve load distribution and joint stability.
Product Specifications
| L&S Part No. | 903 0966 |
|---|---|
| OEM No. | 994103 |
| Unit of Sale | Pack of 50 |
| Key Features | - Stainless steel for corrosion resistance in harsh environments - 12 mm inner diameter fits standard fastener shanks - Form A pattern ensures consistent fit and sizing - Pack of 50 supports multiple tasks and spares - Suitable for construction, plant, and machinery use |


