1675 Dunbier Split Pin M4 x 32 GR304 Stainless Steel Clamshell Pack | Marine Trailer Part
1675 Dunbier Split Pin M4 x 32 GR304 Stainless Steel Clamshell Pack | Marine Trailer Part
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🔧 Product Description
Dunbier Grade 304 Stainless Steel Split Pin M4 × 32mm – Clamshell Pack – Part Number: 1675
A marine-grade split/cotter pin manufactured from Grade 304 stainless steel. The M4 × 32mm pin is used to lock compatible castellated nuts, clevis pins and trailer hardware where the pin diameter and hole size match.
⚙️ Key Features
- Grade 304 stainless-steel construction
- M4 nominal diameter
- 32mm overall length
- Corrosion-resistant marine hardware
- Retail clamshell package
📏 Specifications
- Pin size: M4 × 32mm
- Material: Grade 304 stainless steel
- Pack quantity: As supplied in the current Dunbier clamshell package
- Single-use locking fastener
🔄 Cross Reference & Related Parts
- Dunbier: 1675
- Standard zinc axle split pins are catalogued separately
- Wobble-roller M5 × 32mm pins: Dunbier 1677 and 1678
🚤 Trailer Compatibility & Application
- Suitable for castellated nuts and drilled pins with a matching hole
- Confirm stainless steel is compatible with the surrounding hardware and environment
- Not suitable where a larger M5 roller pin is specified
🔌 Function
Passes through a drilled fastener and spreads at the legs to prevent the nut or pin from moving out of position.
⚠️ Common Signs of Failure
- Pin has been removed and rebent
- Legs are cracked or work-hardened
- Corrosion, fretting or section loss
- Pin is undersize for the retaining hole
- Retained nut or pin has visible movement
🛠️ Installation & Safety
- Use a new split pin after every disassembly
- Select the largest correct pin that passes freely through the hole
- Bend the legs neatly without repeated flexing
- Trim only where permitted and remove sharp exposed ends
- Do not substitute soft wire or an undersize pin
📦 Condition
- Brand new Dunbier Marine Products trailer component
- Supplied as one clamshell pack of M4 × 32mm stainless split pins
- Supplied in original or equivalent 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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