Engineered for superior strength and chemical resistance, this M7 x 89mm polycarbonate hex head cap screw offers exceptional performance in corrosive environments. Ideal for demanding industrial and marine applications.
| Standard | ASTM A106 |
| Material | Polycarbonate |
| Finish | Anodized |
| Grade | N/A |
| Size | M7 |
| Length | 89mm |
| Head Width | 23mm |
Purpose-built for heavy-duty applications, this M7 hex head cap screw boasts an M7 thread size and a substantial 89mm length for deep engagement. Manufactured from high-grade polycarbonate, it exhibits excellent impact strength, high tensile strength (typically exceeding 60 MPa), and superior resistance to a broad spectrum of chemicals, including acids, bases, and solvents. The 23mm head width provides ample surface area for torque application without compromising the material's integrity. Its non-conductive properties make it suitable for electrical enclosures and assemblies where conductivity is a concern. These fasteners are designed to withstand extreme temperatures (-100°C to +120°C) and UV exposure, ensuring longevity in harsh operational conditions.
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. Align the screw with the receiving hole and thread by hand for at least two turns to prevent cross-threading. 3. Use a calibrated torque wrench to tighten the screw to the recommended torque value for polycarbonate fasteners, avoiding over-tightening which can damage the material. 4. Verify proper seating of the hex head against the material surface.
| 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) |
|---|---|---|
| M7 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M7 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Over-tightening the screw, leading to material cracking or stripping of threads. | Use a torque wrench set to the appropriate value for polycarbonate fasteners. Refer to material specifications or manufacturer guidelines for precise torque settings. |
| Using excessive force or impact tools, which can compromise the polycarbonate's structural integrity. | Hand-thread the screw initially and use hand tools or low-torque power drivers for final tightening. |
| Not verifying thread compatibility with the mating component, resulting in cross-threading. | Confirm the M7 thread specification of both the screw and the receiving hole or nut before installation. |
A: This Hex Head Cap Screw, Polycarbonate is manufactured from Polycarbonate.
A: Marine and offshore equipment assembly, Chemical processing plants, Electrical enclosures and control panels, Food and beverage processing machinery, Corrosive environment industrial equipment.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||