04454 Stainless Locking Washer Suit M4 | Marine Stainless Fastener
04454 Stainless Locking Washer Suit M4 | Marine Stainless Fastener
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🔧 Product Description
Wurth Stainless Locking Washer Suit M4 - Part Number: 04454
A Wurth lock washer in A4 stainless steel, to suit M4.
Wurth make it to DIN 127 shape B — the split spring washer with a right-angle cross section, not a serrated or toothed washer. Plain finish.
The split ends bite into the nut face and the joint face as the fastener is tightened, and the spring keeps some tension in the joint as things settle. That matters on a boat or a trailer, where vibration and heat cycling will walk a plain nut loose. 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 127 shape B — split spring type, not serrated
- Right-angle cross section
- Resists loosening under vibration
📏 Specifications
- Thread size: M4
- Material: A4 stainless steel
- Standard: DIN 127 shape B
- Type: split spring lock washer
🔌 Function
Holds tension in a bolted joint so vibration does not back the nut off.
📦 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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