Engineered for demanding environments, this M15 x 21mm hex head cap screw boasts superior corrosion resistance due to its 316 stainless steel construction. Offering robust fastening capabilities, it ensures reliable performance in harsh industrial settings.
| Standard | DIN 933 |
| Material | 316 Stainless Steel |
| Finish | Anodized |
| Grade | N/A |
| Size | M15 |
| Length | 21mm |
| Head Width | 24mm |
A high-performance industrial component, this M15 x 21mm hex head cap screw is manufactured from premium 316 stainless steel, renowned for its exceptional resistance to chloride corrosion and pitting. The M15 thread designation ensures compatibility with standard M15 nuts and tapped holes. With a nominal length of 21mm and a head width of 24mm, it provides ample bearing surface and torque transfer for secure assembly. The material's superior strength and durability make it ideal for applications where exposure to saltwater, chemicals, or extreme temperatures 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. Select the appropriate wrench or socket for the 24mm hex head. 2. Thread the M15 cap screw into the pre-tapped hole or nut until hand-tight. 3. Apply the required torque using a calibrated torque wrench to achieve the specified clamping force, ensuring the fastener is securely seated without over-tightening.
| 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) |
|---|---|---|
| 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 |
|---|---|
| Using incorrect torque, leading to under- or over-tightening. | Always use a calibrated torque wrench and consult engineering specifications for the correct torque value. |
| Cross-threading the fastener, damaging the threads of the screw and mating part. | Start threading by hand to ensure proper alignment before using a tool. If resistance is met, back out and try again. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and offshore equipment, Chemical processing plants, Food and beverage manufacturing equipment, Pharmaceutical processing machinery, Architectural and structural components exposed to corrosive elements.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||