This M5x78mm brass hex head cap screw offers superior corrosion resistance and excellent machinability. Its robust construction ensures reliable fastening in demanding environments, making it a preferred choice for precision applications.
| Standard | ISO 9001 |
| Material | Brass |
| Finish | Passivated |
| Grade | N/A |
| Size | M5 |
| Length | 78mm |
| Head Width | 23mm |
Trusted by engineers across multiple sectors, this M5x78mm brass hex head cap screw (M5 thread pitch, 78mm length) features a substantial 23mm head width for enhanced torque transfer. Crafted from high-grade brass, it exhibits exceptional resistance to corrosion, especially in marine and high-humidity settings, alongside good electrical conductivity. Its non-sparking properties also make it suitable for hazardous environments. The metric coarse thread ensures compatibility with standard M5 nuts and tapped holes, providing a secure and durable mechanical connection for a wide range of industrial assemblies.
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 or nut is clean and free of debris. 2. Align the hex head cap screw with the receiving thread and begin threading by hand to prevent cross-threading. 3. Tighten the screw using an appropriate hex wrench or socket, applying controlled torque to achieve the desired clamping force without over-tightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| 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) |
|---|---|---|
| M5 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M5 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Cross-threading due to improper alignment during initial engagement. | Always start threading the screw by hand to feel for proper engagement before applying any tool. |
| Over-tightening leading to stripped threads or material deformation. | Utilize a torque wrench set to the manufacturer's recommended torque specification for M5 brass fasteners, or apply firm, consistent pressure without excessive force. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and fittings, Electrical connectors and enclosures, Architectural and decorative fixtures, Corrosive atmosphere environments.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||