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This is a set of 2 generic stainless steel strap screws for the Audemars Piguet Royal Oak reference 77321, measuring 9.05mm (overall length) × 1.45mm (thread diameter) with a 1.5mm screw head diameter. These screws secure the metal bracelet links to the case or clasp, serving as essential fasteners in the Royal Oak bracelet system. As an aftermarket replacement, they offer watchmakers a cost‑effective solution for a stripped, worn, or lost original bracelet screw.
Precise Dimensions – 9.05mm length, 1.45mm thread, 1.5mm head – exact fit for the 77321 bracelet system.
Set of 2 – Includes two screws, sufficient for one link or symmetrical positions.
Stainless Steel – Corrosion-resistant with a precision polished finish, matching the original appearance.
Generic Aftermarket – Non-original but precisely engineered to 77321 factory screw dimensions.
Cost-Effective – Affordable alternative to genuine parts for bracelet repair or refurbishment.
| Parameter | Details |
|---|---|
| Compatible Model | Audemars Piguet Royal Oak 77321 |
| Type | Generic (aftermarket) |
| Quantity | 2 pieces |
| Overall Length | 9.05 mm |
| Thread Diameter | 1.45 mm |
| Head Diameter | 1.5 mm |
| Material | Stainless steel |
| Function | Secures bracelet links to case or clasp |
1. Is this a genuine AP screw?
No. It is a generic aftermarket screw, non-original, but matches the 77321 strap screw dimensions exactly.
2. Which specific models does this screw fit?
Primarily Royal Oak 77321. Other 33mm or 37mm models (e.g., 67651, 15450) may have different dimensions. Measure your original screw. Not for Offshore or 39mm Jumbo.
3. Should I use threadlocker?
A low-strength threadlocker (e.g., Loctite 222) is recommended to prevent loosening. Apply sparingly. Professional installation is advised.
4. Does the screw include a nut?
No. The 77321 bracelet typically uses direct threading into a hole; no nut required. This listing is for the screw only.
5. How can I be sure this screw fits my watch?
Measure your original strap screw total length (9.05mm), thread diameter (1.45mm), and head diameter (1.5mm). If they match, it will fit.
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