This M18 x 53mm hex head cap screw, crafted from high-performance polycarbonate, offers exceptional corrosion resistance and electrical insulation. Its robust construction ensures reliable fastening in demanding environments where traditional metal fasteners are unsuitable.
| Standard | ASME B18 |
| Material | Polycarbonate |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M18 |
| Length | 53mm |
| Head Width | 32mm |
Precision-manufactured to tight tolerances, this M18 x 53mm hex head cap screw features a 32mm head width. Constructed from durable polycarbonate, it exhibits superior chemical resistance, high impact strength, and excellent dielectric properties, making it ideal for applications requiring non-conductivity and lightweight solutions. The material's inherent UV stability further enhances its suitability for outdoor or exposed applications. Typical thread pitch is 2.5mm (ISO metric coarse).
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 from debris. 2. Hand-thread the screw to engage initial threads. 3. Tighten using a suitable wrench or socket, applying consistent torque without over-stressing the polycarbonate material.
| 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 | Excellent |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening the screw, potentially cracking the polycarbonate head or stripping the threads. | Use a torque wrench and adhere to recommended torque values for polycarbonate fasteners. Avoid excessive force. |
| Using the screw in applications with extreme temperature fluctuations beyond polycarbonate's operational range. | Verify the operating temperature range of polycarbonate is suitable for the intended environment. Consult material data sheets for precise limits. |
A: This Hex Head Cap Screw, Polycarbonate is manufactured from Polycarbonate.
A: Corrosion-prone environments (e.g., marine, chemical processing), Electrical enclosures and equipment requiring insulation, Lightweight assemblies where metal fasteners add unnecessary weight.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||