Engineered for demanding environments, this M8 x 131mm hex head cap screw, crafted from premium 316 stainless steel, offers superior corrosion and chemical resistance for critical fastening applications.
| Standard | DIN 933 |
| Material | 316 Stainless Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M8 |
| Length | 131mm |
| Head Width | 14mm |
A proven choice for industrial professionals, this M8 x 131mm hex head cap screw is manufactured from high-grade 316 stainless steel, renowned for its exceptional resistance to pitting and crevice corrosion, particularly in chloride-rich environments. The robust M8 thread pitch ensures secure fastening, while the 131mm length provides ample engagement for thicker materials. With a precise 14mm head width, it is compatible with standard socket wrenches and torque tools. This material choice makes it ideal for applications in marine hardware, chemical processing equipment, food and beverage production, and any setting where aggressive media or saltwater exposure is a concern, ensuring long-term structural integrity and operational reliability.
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 from debris. 2. Insert the cap screw through the components to be joined. 3. Tighten the screw using an appropriate socket wrench to the recommended torque specification, ensuring a secure and stable connection.
| 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) |
|---|---|---|
| M8 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M8 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using a standard steel screw in a corrosive environment, leading to premature rust and failure. | Always select fasteners with materials rated for the specific environmental conditions, such as 316 stainless steel for marine or chemical exposure. |
| Over-tightening the screw, which can strip threads or damage the mating material. | Utilize a torque wrench and adhere to the manufacturer's recommended torque values for the specific fastener size and material. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and fittings, Chemical processing equipment, Food and beverage industry machinery.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||