Description
Overview:
This square plate washer is a flat, self-colour steel washer designed to spread the load of M20 fasteners and protect mating surfaces. It features a 2" (50.8 mm) square plate with a central M20 round hole and a 3 mm thickness, offering a stable bearing surface on timber, steelwork, and concrete fixings. Commonly used on construction equipment, agricultural implements, garden machinery frames, generators, and site tools, it helps prevent bolt heads or nuts from pulling into softer materials. The self-colour (plain) finish suits general fabrication and can be finished to match surrounding hardware if required. Supplied individually for precise quantities. MPN: 903 1189. Also available in related ranges covering hole sizes from M8 to M24.
Key Features:
- 2" (50.8 mm) square plate with M20 hole suits M20 bolts and threaded rod
- 3 mm thickness provides dependable load spreading and surface protection
- Self-colour (plain) carbon steel for general-purpose structural and machinery use
- Square profile resists rotation under load better than standard round washers
- Helps prevent pull-through in timber, sheet metal, and light structural sections
- Smooth, flat faces seat well under bolt heads and nuts for consistent clamping
- Suitable for use with brackets, base plates, channels, and guard fixings
- Compatible with spanners and sockets commonly used on M20 fixings
- Deburred edges for safer handling and easier installation
- Sold individually to match project counts and reduce waste
- Part of a wider series with hole sizes from M8 to M24 for system consistency
Typical Applications:
Used for bolting machinery to skids or base frames, reinforcing fixing points on guards and brackets, timber-to-steel connections, formwork and shuttering, fence and gate posts, trailer and plant bodywork, and general repair tasks. Suitable wherever M20 fasteners need increased bearing area to protect surfaces and maintain clamping force, including workshops, farms, building sites, and maintenance depots.
Also known as:
Square washer, plate washer, spreader washer, builder's washer, foundation washer, load-spreading washer, packing washer, spacer washer, flat plate washer, structural washer. Often used as a simple load plate in bolted assemblies where a larger footprint than a standard round flat washer is required.
Product Specifications
| L&S Part No. | 903 1189 |
|---|---|
| Unit of Sale | Each |
| Size | M20 Hole - 50mm x 50mm - 3mm Thick |
| Key Features | - 2" square plate with M20 hole for M20 fasteners - 3 mm thickness ensures load spreading and surface protection - Self-colour carbon steel for general structural use - Square profile resists rotation under load - Suitable for timber, steel, and concrete fixings |
