This M4x18mm Brass Hex Head Cap Screw provides superior corrosion resistance and excellent conductivity. Its robust design ensures reliable fastening in a wide range of demanding industrial environments.
| Standard | ASTM A106 |
| Material | Brass |
| Finish | Anodized |
| Grade | N/A |
| Size | M4 |
| Length | 18mm |
| Head Width | 31mm |
A proven choice for industrial professionals, this M4x18mm Brass Hex Head Cap Screw is engineered for demanding applications where corrosion resistance is paramount. Crafted from high-grade brass, it exhibits excellent ductility and conductivity, making it suitable for electrical connections and environments exposed to moisture or corrosive elements. The M4 thread size ensures compatibility with standard M4 nuts and tapped holes, while the 18mm length provides ample engagement. The 31mm head width offers a substantial bearing surface for secure tightening, resisting deformation under load and facilitating easy wrench access.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating tapped hole or nut is clean and free of debris. 2. Align the Hex Head Cap Screw with the intended fastening point. 3. Using an appropriate wrench or socket, tighten the screw 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) |
|---|---|---|
| M4 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M4 | 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 fastener breakage. | Always adhere to recommended torque specifications for M4 fasteners, especially in softer materials like brass. |
| Using the wrong size wrench, resulting in damage to the hex head. | Utilize a wrench or socket that precisely fits the 31mm head width to ensure proper engagement and prevent cam-out. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Electrical panel assembly, Plumbing fixtures, Marine hardware, Decorative trim 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. | ||||