This M18x128mm hex head cap screw, crafted from premium 304 stainless steel, offers superior corrosion resistance and robust tensile strength for critical fastening needs.
| Standard | ISO 9001 |
| Material | 304 Stainless Steel |
| Finish | Galvanized |
| Grade | N/A |
| Size | M18 |
| Length | 128mm |
| Head Width | 25mm |
Engineered for reliability and performance, this M18 hex head cap screw features a nominal diameter of 18mm and a length of 128mm, ensuring deep thread engagement. The head width measures 25mm, providing ample surface area for standard tooling. Fabricated from 304 stainless steel, it exhibits excellent resistance to a wide range of corrosive environments, including atmospheric, chemical, and marine exposure, making it suitable for applications where rust and degradation are concerns. Its inherent strength and durability meet stringent industrial standards for secure and long-lasting connections.
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. Hand-thread the screw to confirm proper engagement and alignment. 3. Tighten using an appropriately sized wrench or socket to the recommended torque specification for the application.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| 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 stripped hex head or damaged threads. | Always use a wrench or socket that precisely fits the 25mm head width to ensure proper torque application and prevent damage. |
| Over-tightening the screw, potentially causing thread stripping or material fatigue. | Consult torque charts for the specific application and material being joined, and use a calibrated torque wrench. |
A: This Hex Head Cap Screw, 304 Stainless Steel is manufactured from 304 Stainless Steel.
A: Structural steel connections, Marine hardware and boat building, Chemical processing equipment.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||