Engineered for superior performance, this M4 x 55mm brass hex head cap screw offers exceptional corrosion resistance. Its robust design ensures reliable fastening in challenging environments, making it a preferred choice for demanding industrial applications.
| Standard | ASME B18 |
| Material | Brass |
| Finish | Black Oxide |
| Grade | N/A |
| Size | M4 |
| Length | 55mm |
| Head Width | 27mm |
Purpose-built for heavy-duty applications, this M4 x 55mm brass hex head cap screw features a substantial 27mm head width for enhanced torque transfer and secure seating. Manufactured from high-grade brass, it exhibits excellent resistance to corrosion and tarnishing, particularly in marine, chemical, and high-humidity environments. The M4 thread pitch ensures compatibility with standard metric nuts and tapped holes. Its non-magnetic properties are advantageous in electrical and electronic assemblies. The precise machining guarantees consistent performance and ease of installation in demanding industrial settings.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Select the appropriate tool (e.g., socket wrench or hex key) matching the 27mm head width. 2. Align the screw with the pre-drilled hole or mating component, ensuring threads engage smoothly. 3. Tighten the screw to the required torque specification, taking care not to over-tighten to prevent damage to the brass material or mating surface.
| 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) |
|---|---|---|
| M4 | Check Calculator | Reduce by 25% |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| M4 | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using excessive force during tightening, leading to stripped threads or deformation of the brass screw. | Employ a torque wrench to ensure adherence to recommended torque values for brass fasteners. Avoid forcing the screw if resistance is encountered; re-align and inspect threads. |
| Using incompatible tools that do not fit the 27mm hex head, potentially damaging the head or slipping during application. | Utilize a correctly sized hex socket or wrench to ensure a snug fit on the 27mm head. This maximizes torque efficiency and minimizes the risk of cam-out. |
A: This Hex Head Cap Screw, Brass is manufactured from Brass.
A: Marine hardware and fittings, Electrical enclosures and connectors, Industrial machinery 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. | ||||