Engineered for robust performance in corrosive environments, this M20 x 118mm hex head cap screw is manufactured from premium 316 stainless steel, offering superior corrosion resistance and tensile strength for critical fastening needs.
| Standard | DIN 933 |
| Material | 316 Stainless Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M20 |
| Length | 118mm |
| Head Width | 33mm |
A proven choice for industrial professionals, this M20 x 118mm hex head cap screw is meticulously crafted from Grade 316 (A4) stainless steel, renowned for its exceptional resistance to pitting and crevice corrosion in chloride-rich environments like marine and chemical processing. The M20 thread size ensures significant load-bearing capacity, complemented by a precise 118mm length for extended reach. The substantial 33mm hex head width provides ample surface area for torque application, facilitating secure and reliable fastening in demanding industrial assemblies where material integrity and long-term performance are paramount. This fastener is ideal for applications exposed to saltwater, acids, and other aggressive media.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Clean mating surfaces to remove any contaminants. 2. Thread the hex head cap screw into the pre-tapped hole or through the unthreaded hole with a nut. 3. Tighten using an appropriately sized wrench or socket, applying consistent torque as specified by engineering design to achieve the required clamping force.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | DIN 933 |
| 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) |
|---|---|---|
| M20 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M20 | 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 select 316 stainless steel for applications involving saltwater, chemicals, or high humidity to prevent premature corrosion and component failure. |
| Over-tightening or under-tightening the fastener. | Adhere to torque specifications provided in design documentation to ensure proper clamping force without damaging the threads or the surrounding material. |
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 industry machinery, Offshore oil and gas platforms.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||