This M18x12mm hex head cap screw, crafted from robust carbon steel, offers superior strength and durability for critical fastening applications. Engineered for precision and reliability.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Plain |
| Grade | N/A |
| Size | M18 |
| Length | 12mm |
| Head Width | 29mm |
Precision-manufactured to tight tolerances, this M18x12mm hex head cap screw features a nominal diameter of 18mm and a thread pitch conforming to international standards for secure engagement. Constructed from high-grade carbon steel, it exhibits excellent tensile strength and hardness, making it suitable for load-bearing applications. The 12mm length and 29mm head width ensure adequate surface contact and torque transfer. Its robust construction resists deformation under stress, providing a dependable mechanical connection in various industrial environments.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate M18 wrench or socket for the hex head. 2. Ensure the mating threads are clean and free of obstructions. 3. Insert the screw into the designated hole and thread by hand to confirm alignment. 4. Tighten the screw using the wrench or socket to the specified torque value for the application.
| 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 |
|---|---|
| Using the wrong size wrench, leading to stripped hex head corners. | Always use a correctly sized wrench or socket that fully engages all six sides of the hex head. |
| Over-tightening the screw, causing thread damage or material fatigue. | Adhere to recommended torque specifications for the material and application to prevent overstressing the fastener. |
| Cross-threading the screw by forcing it into the mating hole. | Start threading the screw by hand to ensure proper alignment before applying torque. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Heavy machinery assembly, Structural steel connections, Automotive and aerospace components.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||