This M18 x 123mm hex head cap screw, crafted from robust 304 stainless steel, offers superior corrosion resistance and exceptional strength for critical fastening needs.
| Standard | ASTM A106 |
| Material | 304 Stainless Steel |
| Finish | Plain |
| Grade | N/A |
| Size | M18 |
| Length | 123mm |
| Head Width | 35mm |
Trusted by engineers across multiple sectors, this M18 x 123mm hex head cap screw is engineered to meet stringent performance requirements. Constructed from premium 304 stainless steel, it provides excellent resistance to corrosion and oxidation, making it ideal for marine, chemical processing, and outdoor environments. The M18 thread size ensures significant load-bearing capacity, while the 123mm length offers ample reach for various assembly configurations. Its substantial 35mm head width facilitates secure torque application with standard wrenches, ensuring reliable and long-lasting connections in demanding industrial and structural applications.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Clean both the screw threads and the tapped hole or nut to remove any debris or lubricant. 2. Hand-thread the screw into the mating component to ensure proper alignment and prevent cross-threading. 3. Using a calibrated torque wrench, tighten the screw to the manufacturer's recommended torque specification for the specific application and material combination.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASTM A106 |
| 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) | 18.0 - 20.0% |
| Nickel (Ni) | 8.0 - 10.5% |
| Manganese (Mn) | 2.00% max |
| 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 | Good |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong size wrench, leading to head stripping. | Always use a wrench that precisely fits the 35mm head width of the M18 cap screw to ensure proper engagement and prevent damage. |
| Over-tightening the screw, causing thread damage or material fatigue. | Adhere to the specified torque values for the application; consider using a torque wrench for accurate and consistent tightening. |
| Failing to properly clean threads before installation, leading to galling or reduced clamping force. | Ensure both the screw threads and the receiving threads are clean and free of contaminants or old lubricants before assembly. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural steel connections, Marine and offshore equipment assembly, Chemical processing plant infrastructure, Automotive and heavy machinery manufacturing.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||