This M12 x 129mm Hex Head Cap Screw, manufactured from robust carbon steel, provides superior strength and reliability for demanding industrial applications. Its precise dimensions ensure secure and stable connections.
| Standard | ASME B18 |
| Material | Carbon Steel |
| Finish | Anodized |
| Grade | N/A |
| Size | M12 |
| Length | 129mm |
| Head Width | 22mm |
Specified by design engineers worldwide, this M12 x 129mm Hex Head Cap Screw is crafted from high-grade carbon steel, offering excellent tensile strength and durability. The 22mm hexagonal head provides ample surface area for torque application, ensuring secure fastening. Its metric thread profile conforms to international standards, guaranteeing compatibility in diverse assembly environments. The material's inherent toughness makes it suitable for applications experiencing significant stress and load, from heavy machinery to structural components. This fastener is engineered for performance in critical assemblies.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Clean mating surfaces and threads to remove debris. 2. Hand-thread the cap screw to engage threads properly. 3. Tighten to the specified torque value using an appropriate socket wrench.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASME B18 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| Carbon (C) | 0.28 - 0.55% |
| Manganese (Mn) | 0.60 - 0.90% |
| Phosphorus (P) | 0.04% max |
| Sulfur (S) | 0.05% max |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M12 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M12 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong size wrench, leading to stripped head. | Always use a properly sized socket or wrench that fits snugly on the hex head. |
| Overtightening, causing thread damage or fastener failure. | Adhere to the manufacturer's recommended torque specifications or consult engineering drawings. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Machinery assembly and repair, Structural steel connections, Automotive and heavy equipment manufacturing.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||