This M12 x 139mm Hex Head Cap Screw, constructed from high-strength polycarbonate, offers exceptional corrosion resistance and dielectric properties. Engineered for reliable fastening in demanding environments.
| Standard | ISO 9001 |
| Material | Polycarbonate |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M12 |
| Length | 139mm |
| Head Width | 19mm |
Built to exacting engineering tolerances, this M12 x 139mm hex head cap screw features a nominal diameter of M12 and a substantial length of 139mm, ensuring deep thread engagement. The head width measures 19mm, compatible with standard M12 tooling. Constructed from virgin polycarbonate, it provides excellent impact strength, chemical resistance to many common solvents and acids, and superior electrical insulation properties, making it ideal for applications where metal fasteners would corrode or create electrical hazards. Its lightweight nature also contributes to reduced overall assembly weight.
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-thread the screw to verify alignment and prevent cross-threading. 3. Tighten the screw using an appropriate wrench or socket to the recommended torque, avoiding overtightening.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 898-1 / ISO 4014 |
| DIN Equivalent | DIN 931 / DIN 933 |
| Primary Standard | ISO 9001 |
| 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) |
|---|---|---|
| M12 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M12 | 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, which can lead to material cracking or stripping of threads. | Utilize a torque wrench and adhere to manufacturer-specified torque values for polycarbonate fasteners. |
| Using excessive force when the screw is not properly aligned, causing cross-threading. | Always start threading by hand to ensure proper engagement before applying tool torque. |
A: This Hex Head Cap Screw, Polycarbonate is manufactured from Polycarbonate.
A: Electrical enclosures and equipment, Corrosive chemical processing environments, Medical device assembly, Food processing equipment, Marine applications.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||