I supply machine screws black steel that fit tough industrial applications. With a durable black oxide finish and precision threads, these fasteners deliver reliable clamping and smooth assembly in metalwork, automotive, and equipment builds. I offer bulk options for B2B buyers and a transparent Pricelist to help you compare values quickly. Sizes cover common metric and imperial diameters, with various lengths and head styles (socket cap, pan, hex). If you need slight customization, I can accommodate length tolerances, threading options, and protective packaging to suit your line production. Fast lead times, consistent quality control, and reliable sourcing are my priorities, so you can keep your production moving without surprises. For Cheap pricing on large orders, or quarterly price reviews, I’m ready to quote today. Contact me with your required quantity, finish, and dimensions, and I will tailor a solution that meets your budget and schedule.
In a fast-moving global procurement landscape, machine screws crafted from black steel are proving to be a dependable backbone for countless applications. Black-oxide carbon steel screws offer robust strength with cost efficiency, while coated variants extend corrosion resistance in humid or industrial environments. When design specs align with standard thread forms, head styles, and drive types, these fasteners become reliable building blocks for electronics, machinery, and automotive subsystems, helping engineers stay ahead of the curve. Leading suppliers combine scale with rigorous quality control, traceability, and compliance. Global buyers should prioritize partners with ISO-based quality management, material certifications, and clear documentation for RoHS and REACH where required. Beyond spec sheets, the most resilient sources provide accurate lead times, flexible packaging, and customization for thread pitch, length, and finish, enabling smooth cross-border projects from design to production.
| Screw Size | Length (mm) | Material | Finish | Head Type | Drive Type | Thread Pitch (mm) | Tensile Strength (MPa) |
|---|---|---|---|---|---|---|---|
| M3 | 8 | Carbon Steel | Black Oxide | Pan | Hex Socket | 0.50 | 520 |
| M4 | 12 | Stainless Steel (A2-70, 304) | Passivated | Pan | Hex Socket | 0.50 | 520 |
| M5 | 16 | Carbon Steel | Zinc Plated | Button | Phillips | 0.80 | 640 |
| M6 | 20 | Alloy Steel | Black Oxide | Flat | Hex Socket | 1.00 | 900 |
| M6 | 25 | Stainless Steel (304) | Passivated | Pan | Hex Socket | 1.00 | 860 |
| M8 | 30 | Carbon Steel | Zinc Plated | Button | Hex Socket | 1.25 | 710 |
| M3 | 6 | Carbon Steel | Black Oxide | Pan | Hex Socket | 0.50 | 520 |