This M12 x 128mm brass hex cap screw offers exceptional corrosion resistance and non-magnetic properties. Ideal for demanding environments, it ensures reliable fastening in corrosive or sensitive applications.
| Standard | ASME B18 |
| Material | Brass |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M12 |
| Length | 128mm |
| Head Width | 18mm |
Specified by design engineers worldwide, this M12 x 128mm hex head cap screw is manufactured from high-quality brass, providing excellent resistance to corrosion and tarnishing, particularly in marine, chemical, and humid environments. The M12 thread designation ensures compatibility with standard metric components, while the 128mm length offers significant grip for thicker materials. The 18mm hex head width facilitates secure tightening with standard tooling, and the inherent non-magnetic properties of brass are crucial for applications involving sensitive electronics or magnetic fields. Its ductility also allows for some deformation without fracture, making it suitable for vibration-prone settings.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threaded hole is clean and free of debris. 2. Thread the brass hex cap screw by hand for at least two full turns to prevent cross-threading. 3. Tighten using a wrench or socket to the appropriate torque specification, avoiding overtightening which can strip threads in softer materials.
| 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 |
| 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 | Excellent |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Cross-threading the screw due to improper starting. | Always start threading by hand to confirm alignment and engagement of threads before applying torque. |
| Overtightening, especially into softer materials or plastics. | Consult torque charts for brass fasteners or use a torque wrench set to manufacturer specifications to prevent thread damage. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and boat building, Plumbing and water systems, Electrical grounding and connections, Corrosive chemical processing equipment, Architectural fixtures and decorative hardware.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||