This M18 x 70mm Hex Head Cap Screw, forged from robust Aluminum 6061, offers exceptional strength-to-weight ratio and superior corrosion resistance for critical assembly needs.
| Standard | ASME B18 |
| Material | Aluminum 6061 |
| Finish | Plain |
| Grade | N/A |
| Size | M18 |
| Length | 70mm |
| Head Width | 21mm |
Manufactured under strict quality controls, this M18 x 70mm Hex Head Cap Screw features a nominal diameter of 18mm and a shank length of 70mm. The head boasts a controlled width of 21mm, ensuring precise tool engagement. Constructed from Aluminum 6061, a precipitation-hardenable alloy, it exhibits excellent mechanical properties including good formability, weldability, and significant resistance to stress corrosion cracking. This makes it ideal for applications requiring a lightweight yet durable fastener that can withstand moderate loads and environmental exposure.
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 mating tapped hole or nut to ensure free movement. 2. Apply a small amount of anti-seize compound to the threads if the application environment is prone to corrosion or galling. 3. Engage the screw by hand to confirm thread alignment, then tighten using a calibrated torque wrench to the recommended torque specification for Aluminum 6061 fasteners, avoiding over-tightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ASME B18 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| 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 excessive force leading to thread stripping or fastener fracture, especially in softer mating materials. | Always adhere to the recommended torque specifications for the fastener and mating material. Utilize a calibrated torque wrench for accurate application of force. |
| Cross-threading the fastener due to improper initial engagement. | Initiate screw engagement by hand for at least two full turns to ensure proper thread alignment before applying any tooling. |
A: This Hex Head Cap Screw, Aluminum 6061 is manufactured from Aluminum 6061.
A: Aerospace structural components, Automotive sub-assemblies, Marine hardware and fixtures.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||