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SKU: ARP-6641003
GTIN / UPC: N/A
Made in: USA
Quality: ARP Premium 8740 Chrome Moly
N/A
664-1003
The ARP Metric Thread Bolt Kit (ARP #664-1003) includes five high-strength M12 x 1.50 bolts with a 35 mm under-head length. Manufactured from premium 8740 chrome moly steel and heat-treated for superior tensile strength, these bolts are designed for demanding motorsport and performance applications.
Each bolt is precision-machined with rolled threads for optimal fatigue resistance and consistent torque values. The black oxide finish provides added durability against wear and corrosion. Designed for use with a 14 mm hex socket, these bolts deliver reliable clamping force when tightened to the recommended torque specification of 133 Nm (98 ft-lbs).
Includes: 5-pack of ARP 664-1003 bolts.
| Spec | Value |
|---|---|
| 1. Under Head Length (UHL) | 35 mm (1.38 in) |
| 2. Thread Length | 30 mm (1.18 in) |
| 3. Grip Length | 5 mm (0.20 in) |
| 4. Thread Diameter / Pitch | M12 × 1.50 mm |
| 5. Grip Diameter | 12 mm (0.47 in) |
| 6. Wrench Size | 14 mm hex |
| 7. Head Height | 11.7 mm (0.46 in) |
| 8. Collar Diameter | 21.6 mm (0.85 in) |
| Torque Value* | 133 Nm (98 ft-lbs) |
Finish: Black oxide
Material: 8740 Chrome Moly steel
At GEMS autocraft, we offer high-quality auto parts, performance upgrades, and accessories. We also specialize in professional maintenance services, BMW retrofits, and advanced coding solutions—all available at our Longueuil, QC location.
Returns are accepted within 30 days if the item is unused and in original packaging. For full details, see our Return Policy.
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GEMS autocraft Return & Warranty Policy
We are committed to customer satisfaction and offer a clear and efficient process for returns and warranty claims.
| ⟶ Returns | |
| Return Window: | Returns must be requested within 30 days of delivery. |
| Item Condition: | Items must be unused, in original packaging, and in resellable condition. |
| Non-Returnable Items: | Electrical components, fluids, lubricants, used parts, custom orders, and gift cards are final sale. |
| ⟶ Warranty | |
| Warranty Coverage: | Most products and services are backed by a 1-year manufacturer or workmanship warranty. Eligibility may vary. |
| Claim Requirements: | To submit a claim, provide the order number, product details, and a description of the issue. Supporting photos may be requested. |
| ⟶ Additional Details | |
| Refund Processing: | Once inspected, refunds are issued within 3–5 business days to the original payment method. |
| Shipping Responsibility: | Return shipping is the customer’s responsibility. Prepaid labels are available upon request. |
| Policy Details: | View our complete Return and Warranty Policy for full conditions and examples. |
Submit Return Request Submit Warranty Claim
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We stand behind the quality of every product we offer. All manufacturer warranties are honored according to their policies, with most components covered for 1-5 years. All GEMS autocraft branded products are backed by a lifetime warranty.
Standard shipping fees may apply.
For customers choosing installation at GEMS autocraft, we take it a step further—both the replacement part and installation are covered at no charge during the warranty period.
Drive with confidence, knowing your investment is fully protected.
