Engineered for superior performance, this M20 x 20mm Hex Head Cap Screw is manufactured from high-grade 304 stainless steel. It offers exceptional corrosion resistance and tensile strength, making it a reliable choice for critical fastening applications.
| Standard | ASTM A106 |
| Material | 304 Stainless Steel |
| Finish | Anodized |
| Grade | N/A |
| Size | M20 |
| Length | 20mm |
| Head Width | 35mm |
Specified by design engineers worldwide, this M20 x 20mm Hex Head Cap Screw offers a robust M20 thread diameter and a 20mm nominal length. The substantial 35mm hex head width ensures excellent torque transfer capability for secure assembly. Constructed from premium 304 stainless steel, it provides superior corrosion resistance against a wide range of environmental factors, including moisture and mild chemicals, and exhibits good mechanical properties. This makes it an ideal fastener for applications demanding durability and long-term reliability in marine, food processing, chemical, and general industrial environments.
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 of debris. 2. Insert the cap screw into the designated hole, ensuring proper alignment. 3. Using an appropriate sized wrench or socket, tighten the cap screw to the recommended torque specification for the application.
| 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) | 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) |
|---|---|---|
| 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 | Good |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong size wrench, leading to cam-out and damage to the hex head. | Always use a wrench or socket that precisely fits the 35mm hex head to ensure secure engagement and prevent slippage. |
| Over-tightening the screw, which can strip the threads or deform the mating material. | Consult engineering drawings or torque charts for the correct tightening specification. Apply torque gradually and consistently. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural assembly in marine environments, Food processing equipment and machinery, Chemical plant infrastructure, General industrial machinery and equipment.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||