Description
Overview:
Timco Form A Flat Washers (Heavy Duty) are zinc plated steel washers designed to spread the load of bolts and set screws and to protect contact surfaces during assembly. With a 20 mm inner diameter, they are suited to M20 fixings commonly found across construction, plant, and garden machinery. The bright zinc plating provides good corrosion resistance for general indoor and outdoor use, helping fastenings last longer in everyday site and workshop conditions. These flat washers offer a stable, smooth bearing surface that helps prevent pull-through on softer materials and reduces marking on painted or plated finishes. Supplied in a cost-effective pack of 100, they are a practical choice for maintenance teams, installers, and DIY users who need reliable, consistent washers for routine fastening tasks.
Key Features:
- Heavy-duty steel construction for dependable load distribution under nuts and bolt heads
- Zinc plated finish for enhanced corrosion resistance in general outdoor and indoor environments
- 20 mm inner diameter for use with M20 bolts, set screws, and studs
- Smooth, flat faces help protect painted, timber, and plated surfaces from damage
- Helps stabilise joints, especially on oversized or slotted holes
- Consistent dimensions for repeatable performance across multiple fixings
- Simple to fit and remove with standard hand or power tools used for the bolt itself
- Versatile Form A pattern suitable for a wide range of general-purpose assemblies
- Pack of 100 for convenient stocking on site, in workshops, and service vans
- Suitable for use alongside spring washers or thread-locking methods where needed
Typical Applications:
Ideal for machinery assembly, structural brackets, plant and equipment maintenance, fencing and gate hardware, timber-to-steel connections, racking and shelving, trailers, and general fabrication. Commonly used under bolt heads and nuts to distribute clamping force, protect surfaces, and improve joint stability in construction, agricultural, and garden machinery repairs.
Also known as:
Plain washers, flat washers, Form A washers, M20 plain washers, flat fixing washers, spacer washers. These terms are often used interchangeably when referring to general-purpose flat washers that provide a smooth bearing surface under standard metric fasteners.
Product Specifications
| L&S Part No. | 903 0844 |
|---|---|
| Manufacturer | Timco |
| OEM No. | WA20Z |
| Unit of Sale | Pack of 100 |
| Size | 20mm I.D |
| Key Features | - Heavy-duty steel for dependable load distribution - Zinc plated for corrosion resistance indoors and outdoors - 20 mm inner diameter fits M20 bolts and screws - Smooth surface protects painted and plated finishes - Pack of 100 for convenient stocking and use |
