Engineered for superior corrosion resistance and mechanical strength, this M11 x 21mm hex head cap screw is crafted from premium 316 stainless steel, ensuring reliable performance in demanding environments.
| Standard | ASTM A106 |
| Material | 316 Stainless Steel |
| Finish | Plain |
| Grade | N/A |
| Size | M11 |
| Length | 21mm |
| Head Width | 35mm |
Specified by design engineers worldwide, this M11 x 21mm hex head cap screw is constructed from high-grade 316 stainless steel, renowned for its exceptional resistance to pitting and crevice corrosion, particularly in chloride-laden environments. The M11 designation signifies a nominal major diameter of 11mm, with a precise 21mm length. Its robust hex head provides a generous 35mm width, facilitating secure and high-torque assembly with standard tooling. This material composition also offers excellent ductility and weldability, making it suitable for a wide array of critical applications where material integrity is paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select appropriate tooling (e.g., socket wrench or hex key) matching the M11 thread size and ensuring clearance for the 35mm head width. 2. Engage the tool fully with the hex head and apply steady, even torque to drive the screw into the pre-tapped hole or mating fastener. 3. Tighten to the specified torque value as per design documentation, ensuring a secure and stable joint without over-stressing the material.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASTM A106 |
| 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) | 16.0 - 18.0% |
| Nickel (Ni) | 10.0 - 14.0% |
| Molybdenum (Mo) | 2.0 - 3.0% |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M11 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M11 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using standard stainless steel (e.g., 304) in highly corrosive environments. | Always specify 316 stainless steel for applications involving saltwater, chemicals, or high acidity to prevent premature corrosion and joint failure. |
| Applying excessive torque, leading to thread stripping or fastener fracture. | Consult engineering specifications for the correct torque value for M11 fasteners and use a calibrated torque wrench for precise application. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and shipbuilding, Chemical processing equipment, Food and beverage machinery, Medical devices and equipment, Outdoor structural applications.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||