This M12x31mm Brass Hex Head Cap Screw provides superior corrosion resistance and non-magnetic properties. With a robust 25mm head width, it ensures reliable fastening in demanding environments.
| Standard | ASTM A106 |
| Material | Brass |
| Finish | Plain |
| Grade | N/A |
| Size | M12 |
| Length | 31mm |
| Head Width | 25mm |
Manufactured under strict quality controls, this M12x31mm hex head cap screw is crafted from high-grade brass, offering excellent machinability, ductility, and resistance to corrosion and dezincification. The M12 thread standard ensures compatibility with M12 nuts and tapped holes. Its 31mm nominal length and 25mm head width provide ample bearing surface and torque application. Brass's inherent non-magnetic properties make it suitable for sensitive electronic assemblies and environments where magnetic interference is a concern.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate M12 nut or tapped hole for the 31mm screw. 2. Insert the screw, ensuring threads engage smoothly. 3. Tighten the screw using a suitable wrench on the 25mm hex head to the desired torque, avoiding overtightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASTM A106 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| Copper (Cu) | 60.0 - 63.0% |
| Zinc (Zn) | Balance |
| Lead (Pb) | 2.5 - 3.7% |
| 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 excessive force leading to thread stripping or bolt head damage. | Apply torque gradually, referencing recommended torque values for brass fasteners and the specific application's requirements. |
| Using the wrong size wrench, leading to cam-out and damage to the hex head. | Ensure the wrench size precisely matches the 25mm head width for optimal engagement and torque transfer. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Electrical connectors and busbars, Marine hardware and fixtures, Decorative architectural elements, Musical instrument assembly.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||