Engineered for robust performance, this M5 x 20mm Brass Hex Head Cap Screw offers superior corrosion resistance and a bright, appealing finish. Its precision threading ensures secure fastening in a variety of demanding applications.
| Standard | ASME B18 |
| Material | Brass |
| Finish | Zinc Plated |
| Grade | N/A |
| Size | M5 |
| Length | 20mm |
| Head Width | 33mm |
Purpose-built for heavy-duty applications, this M5 x 20mm Brass Hex Head Cap Screw features a substantial 33mm head width for enhanced torque transmission and secure seating. Manufactured from high-grade brass (CuZn37 or equivalent), it exhibits excellent resistance to galvanic corrosion, making it ideal for marine environments, electrical connections, and applications exposed to moisture or corrosive elements. The inherent ductility of brass allows for slight deformation under load without fracturing, contributing to its reliability in vibration-prone settings. Its M5 thread standard ensures compatibility with standard metric nut and hole systems, providing a dependable joining solution.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate wrench or socket size that fits the 33mm hex head. 2. Align the screw with the pre-drilled or tapped hole, ensuring threads engage smoothly. 3. Apply steady torque to tighten the screw, avoiding over-tightening which can damage threads or the mating 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 |
| 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) |
|---|---|---|
| M5 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M5 | 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 the wrong size wrench, leading to stripped hex head. | Always use a correctly sized socket or wrench for the 33mm head width. |
| Cross-threading the screw, damaging both screw and hole threads. | Start threading by hand to ensure proper alignment before applying torque. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and fittings, Electrical grounding and connections, Decorative and architectural elements, Specialty equipment assembly.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||