This M4 x 118mm hex head cap screw, constructed from high-performance polycarbonate, offers superior chemical resistance and electrical insulation. Its robust design ensures reliable fastening in demanding environments.
| Standard | DIN 933 |
| Material | Polycarbonate |
| Finish | Galvanized |
| Grade | N/A |
| Size | M4 |
| Length | 118mm |
| Head Width | 18mm |
Built to exacting engineering tolerances, this M4 x 118mm hex head cap screw features a nominal diameter of 4mm and a substantial 118mm length. The generous 18mm hex head width allows for efficient torque application with standard tooling. Manufactured from high-quality polycarbonate, this fastener exhibits exceptional impact resistance, excellent dielectric strength, and broad chemical inertness, making it ideal for applications where corrosion, electrical conductivity, or material degradation are concerns. Its lightweight nature also contributes to reduced assembly weight. The precise thread form ensures secure and stable joint integrity across a wide range of operating conditions.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threaded hole is clean and free from debris. 2. Align the M4 hex head cap screw with the threaded hole. 3. Thread the screw in by hand to confirm proper engagement and prevent cross-threading. 4. Use an appropriate hex driver or wrench to tighten the screw to the desired torque, avoiding overtightening to prevent damage to the polycarbonate material.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | DIN 933 |
| 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) |
|---|---|---|
| M4 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M4 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Overtightening the polycarbonate screw, leading to thread stripping or material fracture. | Use a torque wrench and adhere to the recommended torque specifications for polycarbonate fasteners to prevent damage. |
| Using metal tools that can scratch or damage the polycarbonate head. | Employ tools made of softer materials or ensure careful handling to maintain the aesthetic and functional integrity of the screw head. |
A: This Hex Head Cap Screw, Polycarbonate is manufactured from Polycarbonate.
A: Electrical enclosures and control panels, Medical equipment assemblies, Corrosive chemical processing equipment, Lightweight structural 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. | ||||