Engineered for superior performance, this M20 x 66mm hex head cap screw is manufactured from high-grade 304 stainless steel, offering exceptional corrosion resistance and tensile strength for critical fastening applications.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Galvanized |
| Grade | N/A |
| Size | M20 |
| Length | 66mm |
| Head Width | 13mm |
Trusted by engineers across multiple sectors, this M20 x 66mm hex head cap screw delivers robust joining capabilities. Constructed from premium 304 stainless steel, it exhibits excellent resistance to corrosion, making it suitable for marine, chemical processing, and food & beverage environments. The robust hex head, with a nominal width of 13mm, allows for secure tightening with standard tooling. Its precise M20 thread pitch and 66mm length ensure reliable engagement in a wide array of structural and mechanical assemblies where durability and longevity are paramount. This fastener meets stringent industry standards for material integrity and mechanical properties.
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. Hand-thread the cap screw into the receiving hole to verify alignment and prevent cross-threading. 3. Using the appropriate sized wrench or socket, tighten the cap screw to the specified torque value, ensuring a secure and stable connection.
| 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) |
|---|---|---|
| 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 head stripping. | Always use a wrench or socket that precisely fits the 13mm hex head to prevent damage and ensure proper torque application. |
| Cross-threading the screw due to improper alignment. | Carefully align the screw with the mating threads and hand-thread it initially to confirm correct engagement before applying torque. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural Frame Assembly, Heavy Machinery Fastening, Marine Equipment 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. | ||||