This M20x135mm Hex Head Cap Screw is precision-engineered from high-grade brass. Its robust construction and excellent corrosion resistance make it ideal for demanding environments where durability and reliability are paramount.
| Standard | ASTM A106 |
| Material | Brass |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M20 |
| Length | 135mm |
| Head Width | 22mm |
Manufactured under strict quality controls, this M20x135mm Hex Head Cap Screw features a nominal diameter of M20, a length of 135mm, and a head width of 22mm. Constructed from solid brass (typically UNS C36000 or equivalent), it offers excellent machinability, good tensile strength, and superior resistance to corrosion from water, chemicals, and galvanic action. Its non-magnetic and non-sparking properties are critical for safety-sensitive applications. Compliant with ISO 4014 standards for thread dimensions and tolerances.
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 of debris. 2. Hand-thread the cap screw to confirm proper alignment and prevent cross-threading. 3. Using a properly sized wrench or socket, tighten the cap screw to the recommended torque specification for brass fasteners, avoiding over-tightening.
| 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 |
| Copper (Cu) | 60.0 - 63.0% |
| Zinc (Zn) | Balance |
| Lead (Pb) | 2.5 - 3.7% |
| Bolt Size | Dry Torque (ft-lbs) | Lubricated Torque (ft-lbs) |
|---|---|---|
| M20 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M20 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Excellent |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using excessive force, leading to stripped threads or fastener breakage. | Refer to brass fastener torque charts and use a calibrated torque wrench to apply the correct tightening force. |
| Not cleaning the mating threads, causing galling or difficulty in assembly. | Thoroughly clean both the screw threads and the receiving threads before installation. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and fittings, Chemical processing equipment, Electrical grounding and bonding applications, Food processing machinery, Architectural and decorative installations.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||