Engineered for robust industrial use, this M13x78mm brass hex head cap screw offers superior corrosion resistance. Its substantial 35mm head width ensures secure torque application and reliable fastening in demanding environments.
| Standard | ASTM A106 |
| Material | Brass |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M13 |
| Length | 78mm |
| Head Width | 35mm |
Designed for demanding industrial environments, this M13x78mm brass hex head cap screw features a nominal diameter of M13 and a thread length of 78mm. The head, with a width of 35mm, is specifically designed to accommodate standard hex wrenches for optimal torque transfer. Constructed from high-grade brass (e.g., UNS C36000 or equivalent), it exhibits excellent machinability, good ductility, and inherent resistance to corrosion, making it ideal for applications involving moisture, mild chemicals, or where non-sparking properties are beneficial. Its tensile strength and shear strength are suitable for medium-duty load-bearing connections.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threads are clean and free of debris. 2. Hand-thread the cap screw into the receiving hole to verify alignment and prevent cross-threading. 3. Using an appropriately sized hex wrench, tighten the cap screw to the recommended torque specification for the application, ensuring a secure and stable joint.
| 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) |
|---|---|---|
| M13 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M13 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening the brass screw, potentially stripping threads or deforming the material. | Utilize a torque wrench and adhere to the manufacturer's or engineering specifications for the correct tightening torque. |
| Using the wrong size hex wrench, leading to cam-out and damage to the screw head. | Always select a hex wrench that precisely fits the screw head recess to ensure maximum engagement and control. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Electrical enclosures and panel mounting, Marine hardware and fittings, Corrosion-resistant machinery assembly.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||