Description
Overview:
The M12 Flat Washer, Form A, is a plain, round washer made from zinc-plated steel for dependable corrosion resistance. Used with M12 threaded fasteners, it spreads the clamping load to protect surfaces, reduce indentation, and help maintain a secure joint. The Form A pattern provides a standard outside diameter suited to general assembly work across construction plant, garden machinery, automotive, and industrial equipment. Made to DIN 125 requirements, it offers consistent sizing and thickness for predictable tightening results. Suitable for use with bolts, set screws, and nuts on brackets, guards, engine mounts, frame fixings, and more. Supplied individually, it is a practical choice for maintenance kits and day-to-day repairs where a reliable flat washer is required.
Key Features:
- Zinc-plated steel (BZP) for reliable corrosion resistance in workshop and site use
- Form A, DIN 125 pattern for standard outside diameter and consistent fit
- Distributes load and protects softer or painted surfaces from damage
- Suits M12 fasteners (12 mm nominal thread) across many assemblies
- Smooth, flat faces support even clamping and repeatable torque settings
- Accurate thickness for consistent preload and joint integrity
- Chamfer-free edges reduce marking and help prevent fretting
- Compatible with steel, aluminium, and composite components
- Ideal for maintenance, repairs, and production assembly
- Supplied singly to top up assortments or replace lost washers
Typical Applications:
General fixings on construction equipment, agricultural and garden machinery, racking and frames, bodywork and panel installations, engine and gearbox mounts, vibration-prone joints when used with the correct fastener strategy, and protection of coated or softer materials where a bolt or nut would otherwise mark the surface.
Also known as:
M12 plain washer, M12 flat washer, DIN 125A washer, Form A plain washer, M12 BZP washer, zinc-plated plain washer, M12 steel washer, flat round washer for M12 bolts, standard OD washer for M12 fasteners.
Alternate Part Numbers:
321 0841, 321-0841, 3210841
Product Specifications
| L&S Part No. | 321 0841 |
|---|---|
| Unit of Sale | 1 |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
