Engineered for superior performance, this M15 x 81mm hex head cap screw is forged from premium 316 stainless steel. Offering exceptional corrosion resistance and mechanical strength, it ensures reliable fastening in aggressive environments.
| Standard | ASME B18 |
| Material | 316 Stainless Steel |
| Finish | Galvanized |
| Grade | N/A |
| Size | M15 |
| Length | 81mm |
| Head Width | 18mm |
Specified by design engineers worldwide, this M15 x 81mm hex head cap screw features a nominal diameter of 15mm and a length of 81mm. The head boasts a nominal width of 18mm, providing ample surface area for torque application. Constructed from 316 stainless steel, it exhibits superior resistance to pitting and crevice corrosion, particularly in saline and chemical-laden atmospheres. This makes it an indispensable component in marine, chemical processing, food and beverage, and pharmaceutical industries where material integrity and longevity are paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure threads on both the screw and mating component are clean and free from debris. 2. Apply appropriate lubricant if required by the application and torque specification. 3. Engage the screw and tighten using a calibrated wrench to the specified torque value, ensuring proper alignment.
| 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) | 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) |
|---|---|---|
| M15 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M15 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening the screw, leading to thread stripping or fastener fracture. | Always use a torque wrench and adhere to manufacturer-recommended torque specifications for the specific thread size and material. |
| Using an incorrect tool size, which can round off the hex head and impede removal or proper tightening. | Utilize a properly sized hex socket or wrench that fits snugly to the head to ensure maximum engagement and prevent damage. |
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 processing machinery, Pharmaceutical manufacturing equipment, Outdoor structural applications.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||