Engineered for superior corrosion resistance and non-magnetic properties, this M9x31mm brass hex head cap screw provides reliable fastening in electrical and decorative applications.
| Standard | ASTM A106 |
| Material | Brass |
| Finish | Anodized |
| Grade | N/A |
| Size | M9 |
| Length | 31mm |
| Head Width | 11mm |
Specified by design engineers worldwide, this M9x31mm brass hex head cap screw is manufactured from high-grade brass, renowned for its excellent corrosion resistance, non-sparking characteristics, and good electrical conductivity. The M9 thread size ensures compatibility with a wide range of metric components, while the 31mm length offers ample grip. The 11mm hex head width provides optimal torque application with standard tooling. This fastener is ideal for environments where galvanic corrosion is a concern or where non-magnetic properties are essential.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate metric wrench or socket for the 11mm hex head. 2. Ensure the mating threaded hole or nut is clean and free of debris. 3. Insert the cap screw and engage the threads, hand-tightening initially to prevent cross-threading. 4. Tighten the screw to the specified torque using a calibrated torque wrench, ensuring a secure connection without over-stressing the material.
| 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) |
|---|---|---|
| M9 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M9 | 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 material deformation. | Always use a calibrated torque wrench and adhere to recommended torque values for brass fasteners. Avoid power tools for final tightening. |
| Cross-threading the M9 screw due to misalignment. | Start threading by hand for at least two full turns before applying any tool. Ensure the screw is entering the threads perpendicularly. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Electrical conductivity applications, Decorative hardware and fixtures, Marine environments and wet conditions, Environments requiring non-magnetic fasteners.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||