This M7 x 49mm hex head cap screw, crafted from premium 304 stainless steel, offers exceptional corrosion resistance and superior tensile strength. Engineered for reliable fastening in demanding environments.
| Standard | ASME B18 |
| Material | 304 Stainless Steel |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M7 |
| Length | 49mm |
| Head Width | 7mm |
Precision-manufactured to tight tolerances, this M7 x 49mm hex head cap screw boasts a nominal diameter of 7mm and a length of 49mm. The head width is also 7mm, ensuring compatibility with standard M7 hex wrenches. Constructed from 304 stainless steel, it provides excellent resistance to a wide range of corrosive media, including many acids, alkalis, and salts, making it ideal for marine, food processing, chemical, and outdoor applications where rust and degradation are primary concerns. Its robust design guarantees secure and long-lasting connections in structural, mechanical, and assembly operations.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select an appropriately sized hex wrench (e.g., 7mm). Ensure the wrench is in good condition to prevent damage to the fastener head. 2. Align the screw with the pre-drilled or tapped hole. Engage the threads smoothly to avoid cross-threading. 3. Tighten the screw to the required torque specification using a calibrated torque wrench, ensuring a secure connection without over-tightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASME B18 |
| 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 hex wrench, leading to cam-out and stripping of the hex socket. | Always verify and use the correct size hex wrench (7mm for this screw) to ensure proper engagement and prevent damage to the fastener head. |
| Cross-threading the screw by forcing it into the hole at an angle, damaging both the screw and the mating threads. | Start threading the screw by hand to ensure it engages correctly. If resistance is met, back it out and re-align before applying force. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural and mechanical assemblies in corrosive environments, Marine hardware and outdoor equipment, Food processing and chemical plant installations.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||