1661C Dunbier 1/2" Ford Wheel Nut Pack of 5, Clamshell Pack | Marine Trailer Part
1661C Dunbier 1/2" Ford Wheel Nut Pack of 5, Clamshell Pack | Marine Trailer Part
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide
🔧 Product Description
Dunbier Ford Wheel Nut 1/2" UNF – Pack of 5 – Part Number: 1661C
A replacement 1/2" UNF tapered-seat trailer wheel nut for the Ford five-stud wheel pattern. The conical seat centres the wheel on the stud and clamps it against the hub flange.
⚙️ Key Features
- Trailer wheel nut with tapered/conical seat
- 1/2" UNF thread
- Matched to Ford five-stud hub studs
- Zinc or plated finish as currently supplied
- Pack quantity: 5 nuts
📏 Specifications
- Thread: 1/2" UNF
- Wheel pattern family: Ford five-stud
- Quantity: 5 nuts
- Seat, shank, knurl and length must match the original component
🔄 Cross Reference & Related Parts
- Dunbier: 1661C
- 7/16-inch hardware is associated with Holden HT-pattern hubs
- 1/2-inch hardware is associated with Ford-pattern hubs
- Do not mix metric, 7/16-inch and 1/2-inch wheel hardware
🚤 Trailer Compatibility & Application
- Suitable only for hubs and wheels using the stated thread and seat profile
- Wheel PCD and stud count must also match
- Stud knurl diameter and grip length must be checked when replacing studs
🔌 Function
Clamps the wheel securely to the hub stud and maintains wheel-to-hub seating under road load.
⚠️ Common Signs of Failure
- Threads are stretched, crossed or stripped
- Conical nut seat is galled or cracked
- Stud spins in the hub
- Corrosion has materially reduced the thread
- Wheel repeatedly loosens despite correct torque
🛠️ Installation & Safety
- Use a torque wrench and the hub/wheel manufacturer's specified torque
- Tighten wheel nuts progressively in a star pattern
- Do not lubricate threads unless the torque specification expressly assumes lubrication
- Press studs into the hub squarely; do not pull badly mismatched studs in with a wheel nut
- Recheck torque after the first 50–100km and after wheel removal
📦 Condition
- Brand new Dunbier Marine Products trailer component
- Supplied as one clamshell pack containing 5 nuts
- 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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