Engineered for superior strength and corrosion resistance, this M7x128mm hex head cap screw is constructed from premium 304 stainless steel, ensuring reliable performance in harsh conditions.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M7 |
| Length | 128mm |
| Head Width | 13mm |
Purpose-built for heavy-duty applications, this M7x128mm hex head cap screw features a robust 304 stainless steel construction, offering excellent tensile strength and resistance to rust and corrosion. Its M7 thread size and 128mm length provide substantial grip and fastening capability, while the 13mm head width ensures secure torque application with standard tools. This fastener is ideal for marine environments, outdoor structures, chemical processing equipment, and any application demanding long-term durability and integrity under stress and exposure.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate drive tool (e.g., socket wrench) for the 13mm hex head. 2. Thread the cap screw into the pre-tapped hole or mating fastener, ensuring smooth engagement of the M7 threads. 3. Apply the required torque, referencing engineering specifications for the specific application, to achieve a secure and reliable connection.
| 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 |
|---|---|
| Over-tightening leading to thread stripping or fastener fatigue. | Utilize a torque wrench to adhere to recommended torque values for the M7 thread size and material to prevent over-stressing the fastener. |
| Using incompatible drive tools that can damage the hex head. | Ensure the drive tool's socket size precisely matches the 13mm head width for optimal engagement and to prevent cam-out or damage. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural steel connections in corrosive environments, Marine hardware and deck fittings, Outdoor equipment and machinery assembly, Chemical plant and processing equipment.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||