High-grade brass hex head cap screws, M12 x 121mm, offering superior corrosion resistance and non-magnetic properties. Engineered for demanding environments and aesthetic applications.
| Standard | DIN 933 |
| Material | Brass |
| Finish | Plain |
| Grade | N/A |
| Size | M12 |
| Length | 121mm |
| Head Width | 16mm |
Built to exacting engineering tolerances, this M12 x 121mm brass hex head cap screw features a nominal diameter of 12mm and a total length of 121mm. The hex head provides a 16mm width across flats, ensuring optimal torque application with standard tooling. Manufactured from solid brass (typically alloy C36000 or equivalent), it exhibits excellent machinability, good tensile strength (approximately 450 MPa), and inherent resistance to corrosion, particularly in marine or humid environments. Its non-magnetic nature and electrical conductivity make it suitable for sensitive electronic assemblies and applications where galvanic corrosion is a concern.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threads are clean and free from debris. 2. Engage the cap screw by hand for at least two full turns to prevent cross-threading. 3. Tighten using an appropriate hex wrench or socket, applying torque according to design specifications or until snug, avoiding over-tightening to prevent thread stripping or material deformation.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | DIN 933 |
| 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 stripped threads or fastener breakage. | Utilize a torque wrench to apply the specified torque value. If torque is not specified, tighten until snug and then apply an additional quarter turn. |
| Cross-threading the fastener by not starting it straight. | Always start threading the screw by hand for several turns to confirm it is properly aligned before using any tools. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and fittings, Electrical connectors and grounding, Decorative and architectural elements, Instrumentation and control systems.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||