This M21 x 119mm Nylon Hex Head Cap Screw provides superior corrosion resistance and dielectric strength. Its robust nylon construction ensures reliable performance in challenging environments where metal fasteners may fail.
| Standard | ASME B18 |
| Material | Nylon |
| Finish | Passivated |
| Grade | N/A |
| Size | M21 |
| Length | 119mm |
| Head Width | 34mm |
Built to exacting engineering tolerances, this M21 x 119mm Hex Head Cap Screw features a nominal diameter of M21, a grip length of 119mm, and a head width of 34mm. Constructed from high-grade nylon, it exhibits excellent tensile strength, chemical inertness, and a high dielectric constant, making it ideal for applications requiring electrical isolation or resistance to corrosive substances. Its non-magnetic properties further enhance its suitability for sensitive electronic or medical equipment.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure the mating threads are clean and free of debris. 2. Engage the hex head with an appropriately sized wrench or socket. 3. Apply consistent torque to achieve desired clamping force, avoiding over-tightening which can strip nylon threads.
| 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) |
|---|---|---|
| M21 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M21 | 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 nylon screw, leading to thread stripping. | Use a torque wrench set to the manufacturer's recommended specification for nylon fasteners or apply steady, firm pressure without excessive force. |
| Using a metal wrench that can damage the nylon hex head. | Utilize a plastic or composite socket, or a wrench with a protective coating to prevent gouging or deforming the nylon head. |
A: This Hex Head Cap Screw, Nylon is manufactured from Nylon.
A: Electrical insulation in control panels, Corrosion-resistant fastening in chemical processing equipment, Lightweight component assembly in aerospace and automotive.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||