Engineered for superior performance, this M20 x 19mm 304 stainless steel hex head cap screw offers exceptional corrosion resistance and high tensile strength for demanding environments.
| Standard | ASME B18 |
| Material | 304 Stainless Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M20 |
| Length | 19mm |
| Head Width | 31mm |
Purpose-built for heavy-duty applications, this M20 x 19mm hex head cap screw is manufactured from premium 304 stainless steel, renowned for its excellent corrosion resistance, particularly in marine and chemical environments. The M20 metric thread provides robust fastening capabilities, while the 19mm length ensures precise engagement in a variety of assemblies. With a substantial 31mm head width, it facilitates secure tightening with standard hex tools, distributing load effectively across the joining surfaces and preventing material deformation. This combination of material integrity and dimensional stability makes it a reliable choice for structural components, machinery, and outdoor installations.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate sized wrench or socket for the 31mm hex head. 2. Ensure the mating threads are clean and free of debris. 3. Thread the cap screw into the designated hole until snug, then apply torque according to application specifications, avoiding overtightening.
| 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) |
|---|---|---|
| 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 stripped hex head. | Always use a wrench or socket that precisely fits the 31mm head to ensure proper torque application and prevent damage. |
| Overtightening, causing thread stripping or component damage. | Adhere to recommended torque specifications for the application. If unsure, consult engineering drawings or a qualified professional. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Industrial machinery and equipment assembly, Marine and offshore structures, Outdoor infrastructure and construction.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||