This M18 x 140mm hex head cap screw, crafted from marine-grade 316 stainless steel, offers exceptional corrosion and pitting resistance for critical applications.
| Standard | ASME B18 |
| Material | 316 Stainless Steel |
| Finish | Passivated |
| Grade | N/A |
| Size | M18 |
| Length | 140mm |
| Head Width | 30mm |
Built to exacting engineering tolerances, this M18 x 140mm hex head cap screw features a nominal diameter of 18mm and a thread pitch optimized for robust fastening. The 316 stainless steel composition provides superior resistance to chlorides, making it ideal for marine, chemical processing, and food service environments. Its inherent strength and durability ensure reliable performance under significant tensile and shear loads. The 30mm head width allows for secure engagement with standard M18 tooling, facilitating efficient assembly.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure mating threads are clean and free of debris. 2. Apply a suitable lubricant if required by the application's torque specifications. 3. Tighten the cap screw to the specified torque value using calibrated tooling.
| 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) |
|---|---|---|
| M18 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M18 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Excellent |
| Chemical / Acidic | Good |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening, leading to thread stripping or material fatigue. | Adhere strictly to recommended torque specifications and utilize a torque wrench. |
| Using incorrect tooling, resulting in damaged screw heads or incomplete tightening. | Employ the correct size and type of wrench or socket for the M18 hex head. |
A: This Hex Head Cap Screw, 316 Stainless Steel is manufactured from 316 Stainless Steel.
A: Marine hardware and structures, Chemical processing equipment, Food and beverage industry machinery, Outdoor and coastal 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. | ||||