This M18 x 18mm Hex Head Cap Screw, crafted from high-grade carbon steel, offers exceptional strength and durability. Its precise dimensions and robust construction ensure secure and reliable fastening in demanding industrial environments.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M18 |
| Length | 18mm |
| Head Width | 12mm |
A high-performance industrial component, this M18 x 18mm Hex Head Cap Screw is engineered for superior load-bearing capacity and resistance to shear and tensile stress. Constructed from high-carbon steel, it exhibits excellent tensile strength and a Rockwell hardness typically ranging from 25HRC to 32HRC, providing a robust solution for critical connections. The nominal diameter is M18, with a closely controlled length of 18mm and a standard head width of 12mm, ensuring compatibility with standard tooling and mating components in machinery, structural assemblies, and heavy equipment.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threads are clean and free of debris. 2. Hand-tighten the cap screw to verify thread engagement. 3. Use a calibrated torque wrench to tighten the screw to the manufacturer's specified torque value, ensuring even pressure distribution.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASTM A106 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| Carbon (C) | 0.28 - 0.55% |
| Manganese (Mn) | 0.60 - 0.90% |
| Phosphorus (P) | 0.04% max |
| Sulfur (S) | 0.05% 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 | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening the screw, leading to thread stripping or fastener breakage. | Always use a torque wrench and adhere to the recommended torque specifications for the fastener and application. |
| Using the wrong size or type of wrench, which can damage the hex head and lead to improper torque application. | Utilize a properly sized hex socket or wrench that fits snugly onto the head of the cap screw. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Structural steel construction, Automotive manufacturing, Industrial equipment maintenance.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||