Engineered for robust fastening, this M12x135mm hex head cap screw is constructed from high-grade carbon steel. Its substantial 30mm head width ensures secure torque application and superior load distribution, making it ideal for demanding industrial environments.
| Standard | ISO 9001 |
| Material | Carbon Steel |
| Finish | Plain |
| Grade | N/A |
| Size | M12 |
| Length | 135mm |
| Head Width | 30mm |
Trusted by engineers across multiple sectors, this M12x135mm hex head cap screw delivers exceptional performance in critical applications. Manufactured from durable carbon steel, it offers a robust tensile strength and resistance to shear forces, suitable for medium to heavy-duty structural connections. The precisely machined M12 thread ensures reliable engagement with mating components, while the 30mm hex head provides ample surface area for standard tooling, facilitating efficient assembly and disassembly in machinery, construction, and equipment manufacturing.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure both the screw and the tapped hole or nut are clean and free of debris. 2. Hand-thread the screw to confirm proper alignment and avoid cross-threading. 3. Use a calibrated torque wrench to tighten the screw to the manufacturer's specified torque value for the application.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| 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 an undersized wrench, leading to cam-out and damaged hex head. | Always use a properly sized and good-condition wrench that fully engages the hex head. |
| Over-tightening the screw, which can strip threads or cause material fatigue. | Adhere to recommended torque specifications for the material and joint design. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Structural steel connections, Automotive 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. | ||||