Engineered for superior corrosion resistance and mechanical integrity, this M13 x 31mm hex head cap screw is crafted from premium 316 stainless steel. Ideal for demanding environments requiring robust and reliable fastening solutions.
| Standard | ASME B18 |
| Material | 316 Stainless Steel |
| Finish | Anodized |
| Grade | N/A |
| Size | M13 |
| Length | 31mm |
| Head Width | 25mm |
Precision-manufactured to tight tolerances, this M13 x 31mm hex head cap screw features a nominal diameter of M13, a length of 31mm, and a substantial 25mm head width for optimal torque application. Constructed from 316 stainless steel, it offers exceptional resistance to pitting and crevice corrosion in chloride-rich environments due to its molybdenum content. This makes it the preferred choice for marine hardware, chemical processing equipment, food and beverage production, and pharmaceutical applications where hygiene and material integrity are paramount. Its inherent strength and durability ensure long-term performance under significant stress and exposure to corrosive agents.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate wrench or socket size for the M13 hex head. 2. Ensure mating threads are clean and free from debris. 3. Apply the screw by hand to engage the threads properly, then tighten to the specified torque using a calibrated torque wrench.
| 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) |
|---|---|---|
| M13 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M13 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using a wrench that is too large or too small for the hex head, leading to cam-out and potential damage to the fastener. | Utilize a precisely sized socket or wrench to ensure a full and secure grip on the hex head, maximizing torque transfer and preventing stripping. |
| Cross-threading the screw during installation, causing damage to both the screw and the tapped hole. | Initiate screw engagement by hand for several turns to confirm proper thread alignment before applying any torque. If resistance is felt immediately, back out and re-align. |
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, Pharmaceutical manufacturing, 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. | ||||