Engineered for superior strength and corrosion resistance, this M7x79mm hex head cap screw, crafted from premium 304 stainless steel, ensures reliable fastening in diverse industrial applications.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Anodized |
| Grade | N/A |
| Size | M7 |
| Length | 79mm |
| Head Width | 21mm |
Specified by design engineers worldwide, this M7x79mm hex head cap screw offers a nominal thread diameter of 7mm and a length of 79mm. The hex head provides a 21mm wrenching surface for secure installation and removal. Constructed from grade 304 stainless steel (A2), it exhibits excellent resistance to a wide range of corrosive environments, including saltwater, food processing, and chemical exposure. This material composition ensures high tensile strength and durability, making it ideal for structural and critical fastening applications where longevity and performance are paramount. Its compliance with ISO 4014 standards guarantees interchangeability with existing fastening systems.
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 from debris. 2. Select the appropriate wrench or socket for the 21mm hex head. 3. Apply steady torque to tighten the screw to the required specification, avoiding over-tightening.
| 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 heads. | Always use a wrench or socket that precisely fits the 21mm hex head to prevent damage. |
| Applying excessive torque, which can lead to thread stripping or screw failure. | Refer to torque charts for M7 fasteners in 304 stainless steel and use a calibrated torque wrench for critical applications. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Marine and offshore equipment, Food and beverage processing machinery, Chemical plant construction, Automotive and aerospace components.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||