This M9 x 51mm hex head cap screw, crafted from premium 304 stainless steel, offers exceptional strength and corrosion resistance for critical assembly tasks.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M9 |
| Length | 51mm |
| Head Width | 19mm |
A high-performance industrial component, this M9 x 51mm hex head cap screw is engineered with a nominal thread diameter of 9mm and a length of 51mm, ensuring precise fitment and secure connections. The robust 304 stainless steel composition provides superior tensile strength and excellent resistance to oxidation and corrosion, making it ideal for applications in marine, chemical processing, and food service environments. The substantial 19mm head width allows for optimal torque application with standard tooling, guaranteeing reliable fastening even under significant load. This fastener is designed to meet stringent industrial standards for durability and longevity.
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 hex key or socket wrench matching the 19mm head width. 2. Align the screw with the pre-tapped hole or nut, ensuring threads engage smoothly. 3. Apply steady, increasing torque until the desired clamping force is achieved, avoiding over-tightening to prevent thread stripping or material damage.
| 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) |
|---|---|---|
| M9 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M9 | 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 key, leading to cam-out and potential damage to the screw head. | Always use a correctly sized hex key or socket that fits snugly into the screw head recess. |
| Over-tightening the screw, which can strip the threads or compromise the structural integrity of the joined components. | Tighten the screw to the manufacturer's recommended torque specification for the application, or use a torque wrench to ensure accuracy. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural assembly in corrosive environments, Machinery and equipment manufacturing, Marine hardware and fittings.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||