This M18x138mm brass hex head cap screw offers superior corrosion resistance and non-sparking properties, making it essential for harsh industrial environments where material integrity is paramount.
| Standard | DIN 933 |
| Material | Brass |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M18 |
| Length | 138mm |
| Head Width | 33mm |
Designed for demanding industrial environments, this M18 x 138mm hex head cap screw is precision-engineered from high-grade brass, known for its excellent corrosion resistance, non-magnetic properties, and inherent non-sparking characteristics. The robust M18 thread pitch ensures secure and reliable fastening in applications requiring resistance to moisture, chemicals, and potentially explosive atmospheres. With a nominal head width of 33mm, it facilitates efficient torque application using standard tooling, ensuring proper pre-load for critical assemblies.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate torque wrench and socket size for the M18 hex head. 2. Ensure the mating threads are clean and free from debris. 3. Apply specified torque in a controlled manner, avoiding over-tightening to prevent thread damage 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) |
|---|---|---|
| M18 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M18 | 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 failure. | Always adhere to the manufacturer's recommended torque specifications for M18 fasteners in brass. |
| Employing the wrong size socket, resulting in cam-out and damaged hex head. | Utilize a high-quality socket that precisely matches the 33mm head width to ensure proper engagement. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and fittings, Chemical processing equipment, Electrical grounding and bonding, Non-sparking tool applications.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||