This is a pack of ten ARP 12-point nuts in the M12 x 1.25 thread size. Each nut is machined from 8740 chromoly steel and finished in black oxide, providing higher clamp load and fatigue strength than a stock nut. The 12-point profile works with a thin-wall socket for tight-clearance fastening. Kit includes 10 nuts.
Specifications
| Type | 12-point flange nut set |
| Material | 8740 chromoly steel, black oxide finish |
| Thread | M12 x 1.25 |
| Included | 10 nuts |
| Part Number | 300-8337 |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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