0412925 Large Stainless Steel Washer M4 | Marine Stainless Fastener
0412925 Large Stainless Steel Washer M4 | Marine Stainless Fastener
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🔧 Product Description
Wurth Large Stainless Steel Washer M4 - Part Number: 0412925
A Wurth washer with a large outside diameter, in A4 stainless steel, to suit M4.
Wurth make it to DIN 9021 at 140 HV, plain finish. "Large" means a bigger outside diameter than the DIN 125 washer of the same bore — the load is spread over a much wider footprint.
That is what you want in soft or thin material, or over an oversized or slotted hole: fibreglass, marine ply, alloy sheet and the like, where a standard washer will simply pull through. A4 is the molybdenum-bearing austenitic stainless — 316 in the other naming — and it is the grade specified for salt water, where A2 (304) rust-stains and then pits.
⚙️ Key Features
- A4 stainless steel (316 grade)
- Made to DIN 9021 — large outside diameter
- 140 HV hardness
- Spreads load in soft or thin material
- Suits oversized and slotted holes
📏 Specifications
- Thread size: M4
- Material: A4 stainless steel
- Standard: DIN 9021
- Hardness: 140 HV
🔌 Function
Spreads a bolted joint’s clamp load over a wide area so the fastener does not crush or pull through the material it is holding.
📦 Condition
- Brand new genuine product
- Supplied in original packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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