This M8 x 51mm hex head cap screw, crafted from robust carbon steel, provides superior tensile strength and durability for critical fastening applications in machinery and construction.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M8 |
| Length | 51mm |
| Head Width | 11mm |
Built to exacting engineering tolerances, this M8 x 51mm carbon steel hex head cap screw offers reliable performance. Its 11mm head width ensures substantial torque transfer for secure tightening. Manufactured from high-grade carbon steel, it exhibits excellent shear and tensile strength, making it suitable for load-bearing joints and general mechanical assembly. The material's inherent toughness allows it to withstand significant stress and vibration, ensuring long-term structural integrity in demanding environments. Meets or exceeds relevant industry standards for dimensional accuracy and material composition.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate torque wrench and socket. 2. Engage the socket fully with the hex head. 3. Apply torque gradually to the specified tightening value, ensuring even pressure.
| 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) |
|---|---|---|
| M8 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M8 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Overtightening the screw, leading to thread stripping or material fatigue. | Adhere to the recommended torque specification for the application and material. |
| Using the wrong size socket, causing damage to the screw head or incomplete engagement. | Ensure the socket size precisely matches the 11mm head width of the cap screw. |
A: This Hex Head Cap Screw, Carbon Steel is manufactured from Carbon Steel.
A: Machinery and equipment assembly, Structural bracing and supports, Automotive and aerospace sub-assemblies.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||