M12 Square Plate Washer
- Bright Zinc Plated - (BZP)
- 3mm Thick - Mild Steel
- For M12 Thread Clearance
- 14mm Hole (D)
- Dimensions: 40x40mm
- Compatible with all Strut Types
- Box of 100
Northern Fasteners
M12 SQUARE PLATE WASHERS - (BOX OF 100) - 40X40X3MM - BZP
M12 SQUARE PLATE WASHERS - (BOX OF 100) - 40X40X3MM - BZP
Regular price
£13.80
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£13.80
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Northern Fasteners stocks everything you need for a complete, matched assembly. Always pair your fasteners with the same finish throughout — BZP with BZP, HDG with HDG, A4 stainless with A4 stainless — for consistent corrosion protection and a professional result. Browse our full range of hex nuts, washers, threaded rods, and bolt and nut sets to find everything you need.
BZP, HDG or A4 Stainless — which finish do you need?
Choosing the right finish is just as important as choosing the right size. BZP is ideal for indoor and sheltered use. HDG provides heavy-duty corrosion protection for outdoor, structural, and timber applications. A4 Grade 316 Stainless is the choice for marine, coastal, and chemical environments where no rust is acceptable. Read our guide to help you decide.
Why buy from Northern Fasteners?
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Same-day dispatch
Orders placed before 2pm are dispatched the same working day via tracked courier.
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Free delivery over £60
Free standard UK delivery on all orders over £60. Tracked and reliable.
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DIN & ISO standards
All fasteners are manufactured to DIN and ISO standards. Grade 4.8 and 8.8 as standard.
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Trade & domestic
Competitive pricing for both trade buyers and domestic projects. No minimum order.
Free delivery over £60 — same-day dispatch
Orders placed before 2pm are dispatched the same working day. Spend over £60 and get free standard UK delivery via tracked courier. All our fasteners are manufactured to DIN and ISO standards — properly graded, reliably finished, and competitively priced for trade and domestic buyers alike.
Also need mild steel?
We stock a full range of structural mild steel sections alongside our fasteners — angle iron, box section, flat bar, tube, round bar, and more. Whether you're building a gate, a frame, or a fabrication project, we have the steel and the fasteners to go with it, all in one order.