This M18x148mm Hex Head Cap Screw, crafted from high-strength Aluminum 6061, provides a robust yet lightweight fastening solution. Ideal for environments requiring corrosion resistance and excellent mechanical properties.
| Standard | ASTM A106 |
| Material | Aluminum 6061 |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M18 |
| Length | 148mm |
| Head Width | 20mm |
Engineered for reliability and performance, this M18x148mm Hex Head Cap Screw is precision-machined from Aerospace-grade Aluminum 6061-T6. This alloy offers a superior balance of strength (tensile strength typically 310 MPa), excellent corrosion resistance due to its natural oxide layer, and a low density (2.7 g/cm³), making it ideal for weight-sensitive applications. The M18 thread pitch ensures secure engagement, while the 148mm length and 20mm head width provide ample surface area for torque application and load distribution. Suitable for use in marine, automotive, and aerospace industries where durability and reduced mass are paramount.
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-tighten the screw to verify alignment and prevent cross-threading. 3. Use an appropriately sized wrench or socket to tighten to the specified torque, avoiding over-tightening.
| 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 |
| 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 | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using excessive force, leading to thread stripping or fastener breakage. | Consult torque specifications for Aluminum 6061 fasteners of this size and material, and use a calibrated torque wrench. |
| Not cleaning mating surfaces, which can compromise joint integrity and lead to corrosion. | Thoroughly clean both the screw threads and the internal threads of the mating component before assembly. |
A: This Hex Head Cap Screw, Aluminum 6061 is manufactured from Aluminum 6061.
A: Aerospace structural components, Automotive chassis and interior parts, Marine hardware and fittings.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||