Description
Overview:
Form C Stainless Steel Washers with a 6 mm inner diameter are large outer diameter flat washers designed to spread the load of a bolt or screw and protect the surface beneath the fixing. Made from corrosion-resistant stainless steel, they are suitable for outdoor and damp environments as well as general workshop use. The 6 mm I.D. (approximately 0.24 inches) suits M6 bolts, set screws, and threaded rod commonly found in construction, plant, garden machinery, and fabrication. The large O.D. pattern helps prevent pull‐through on thinner or softer materials such as sheet metal, plastic, and timber. Supplied in a bulk pack of 500 for convenient site or maintenance stock. Manufacturer Part Number: 994112.
Key Features:
- Large O.D. Form C pattern for improved load distribution and surface protection
- 6 mm inner diameter (approx. 0.24 inches) to suit M6 fasteners
- Stainless steel construction for excellent rust and stain resistance
- Suitable for outdoor, marine-adjacent, and high‐moisture environments
- Helps prevent bolt head or nut from embedding into softer materials
- Smooth bearing surface for consistent clamp force and reduced galling
- Versatile for machinery assembly, brackets, guards, covers, and fixings
- Simple to fit with standard hand tools; no special equipment required
- Bulk pack of 500 for efficient workshop and site replenishment
- Neutral metallic finish to match most stainless fasteners
Typical Applications:
Commonly used with M6 bolts and nuts on machinery panels, engine covers, guards, frames, brackets, enclosures, pipe clips, and mounting plates. Ideal for construction fixings into thin sheet, timber, or composite panels, as well as maintenance of garden machinery, small plant, HVAC housings, and fabrications. Suitable for repairs where increased bearing area reduces the risk of pull‐through.
Also known as:
Often referred to as penny washers, repair washers, spreader washers, wide washers, or large O.D. washers. Sometimes used as light-duty shims or packing washers where extra bearing area is needed around an M6 fixing.
Product Specifications
| L&S Part No. | 903 0980 |
|---|---|
| OEM No. | 994112 |
| Unit of Sale | Pack of 500 |
| Key Features | - Large O.D. Form C pattern for load distribution - 6 mm inner diameter suits M6 fasteners - Stainless steel resists rust and stains - Suitable for outdoor and damp environments - Bulk pack of 500 for site stock replenishment |


