This M7x78mm hex head cap screw is engineered from robust 304 stainless steel, offering superior corrosion resistance and tensile strength for critical fastening tasks in challenging environments.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M7 |
| Length | 78mm |
| Head Width | 13mm |
Purpose-built for heavy-duty applications, this M7x78mm hex head cap screw features a nominal diameter of M7 and a length of 78mm. The head width is precisely manufactured to 13mm, ensuring optimal engagement with standard wrenches and sockets. Constructed from premium 304 stainless steel, it provides exceptional resistance to rust, corrosion, and pitting, making it ideal for prolonged exposure to moisture, chemicals, and harsh atmospheric conditions. Its inherent tensile strength and durability ensure reliable performance in structural assembly, machinery, and outdoor installations where longevity and load-bearing capacity are paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate size wrench or socket (13mm) for the hex head. 2. Ensure the mating threads are clean and free from debris. 3. Thread the cap screw into the designated hole, applying consistent torque until secure. Avoid overtightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| Tensile Strength | 75,000 psi (515 MPa) |
| Yield Strength | 30,000 psi (205 MPa) |
| Elongation in 2 in. | 40% min |
| Hardness | Rockwell B95 max |
| Carbon (C) | 0.08% max |
| Chromium (Cr) | 18.0 - 20.0% |
| Nickel (Ni) | 8.0 - 10.5% |
| Manganese (Mn) | 2.00% max |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M7 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M7 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Good |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong size wrench, leading to stripped hex head. | Always use a 13mm wrench or socket that fits snugly to prevent damage to the hex head. |
| Cross-threading the screw, causing damage to both the screw and the mating material. | Start threading the screw by hand to ensure it engages the threads correctly before applying any torque. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural assembly in marine environments, Machinery and equipment fastening, Outdoor and exposed architectural fixtures.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||