I’m your go-to source for socket head cap screw black, built to endure tough assemblies and tight tolerances. As a reliable Supplier, I prioritize High-Quality materials, heat-treated steel, and a black oxide finish for corrosion resistance. I offer precise dimensions, from small M3 up to M12, with various thread pitches and hex drive options to fit your drivers. The socket head design delivers strong clamping in confined spaces, ideal for CNC, automotive, robotics, and general machinery. I provide datasheets, material grades, and QC certificates on request, plus consistent lead times and competitive pricing. Packaging can be tailored for OEMs and distributors, with bulk or small-batch orders. If you need special finishes, corrosion resistance, or higher strength, I can tailor the solution, confirm torque specs, and ensure traceability. I’m committed to helping your projects stay on schedule with dependable components you can trust as a trusted Supplier.
Global buyers seeking reliable fasteners will appreciate socket head cap screws finished in black for peak performance. Through precision machining, controlled heat treatment, and a durable black oxide coating, they deliver uniform hardness, high torque stability, and reduced galling in demanding assemblies. The black surface also minimizes glare and improves inspection visibility in compact equipment. For electronics and machinery procurement, supply reliability is as important as specifications. End‑to‑end quality assurance and material traceability guarantee consistent dimensions, with tight tolerances such as ±0.05 mm on bore and head features and precise thread pitch. Rigorous inspections and process controls across every batch translate to lower field failures and smoother maintenance. Global buyers value flexible packaging, corrosion protection, and compliance with RoHS and REACH. Partners offering scalable lead times, adjustable MOQs, and transparent documentation support rapid deployment across automotive, industrial, and consumer applications. Choose vendors with proven performance, continuous improvement, and a track record of exceeding industry benchmarks.
| Nominal Size | Length (mm) | Thread | Head Height (mm) | Head Diameter (mm) | Drive Type | Material | Grade | Standards | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HRC) | Finish |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M4 | 8 | M4 x 0.7 | 2.2 | 7.0 | Hex Socket | Alloy Steel | 8.8 | ISO 4762 | 800 | 640 | 36 | Black Oxide |
| M5 | 12 | M5 x 0.8 | 2.5 | 8.0 | Hex Socket | Alloy Steel | 8.8 | ISO 4762 | 800 | 640 | 36 | Black Oxide |
| M6 | 20 | M6 x 1.0 | 3.0 | 9.0 | Hex Socket | Alloy Steel | 8.8 | ISO 4762 | 800 | 640 | 36 | Black Oxide |
| M8 | 25 | M8 x 1.25 | 3.5 | 13.0 | Hex Socket | Alloy Steel | 8.8 | ISO 4762 | 800 | 640 | 36 | Black Oxide |
| M10 | 30 | M10 x 1.5 | 4.0 | 16.0 | Hex Socket | Alloy Steel | 8.8 | ISO 4762 | 800 | 640 | 36 | Black Oxide |