I’m your go-to supplier for 4-40 set screw stainless, designed for high-precision positioning and reliable torque. As a professional in fastener supply, I source only High-Quality components that meet tight tolerances and corrosion resistance required in automotive, electronics, and machinery. With stainless steel options that protect against corrosion, this screw’s thread is 4-40, small but mighty. I offer quick lead times, packaging options, and custom drive types (slot, Torx) to fit your production line. MOQs flexible, competitive pricing for long-term orders. Each batch comes with dimension checks, surface finish reports, and traceability to ensure consistency across lots. If you’re looking to stock a dependable supply line, I stand ready to fulfill your demand with spare parts, sample kits, and prompt reorders. Choose me as your partner for High-Quality, reliable stainless 4-40 set screws.
In demanding assemblies where space is tight and reliability matters, 4-40 stainless set screws offer secure clamping, corrosion resistance, and reliable torque. Choosing a supplier with tight tolerances and consistent material quality ensures fast acceptance at first try, reduces rework, and extends equipment life. This supplier provides stainless set screws with strict quality control: traceable raw materials, precision threading, verified hardness, surface finishes (plain, black oxide, passivated), and conformance to international standards. Advanced inspection and QA ensure each lot meets dimensional tolerances and superior load performance, even in rugged environments. Global buyers benefit from flexible MOQs, scalable production, multiple finishes, fast, reliable delivery, and compliant packaging and labeling. Whether for aerospace, automotive, electronics, or industrial equipment, a dependable stainless 4-40 set screw partner delivers consistency, traceability, and peace of mind across the supply chain.
| Item | Thread Size | Length (in) | Head Style | Drive Type | Material | Finish | Tensile Strength (ksi) | Hardness (HRC) | Standard |
|---|---|---|---|---|---|---|---|---|---|
| 4-40 x 1/4 Set Screw | 4-40 UNC | 0.25 | Socket Cup | Internal Hex | A2-70 (304 SS) | Satin | 70 | 32 | ANSI/ASME B18.3 |
| 4-40 x 1/2 Set Screw | 4-40 UNC | 0.50 | Socket Cup | Internal Hex | A4-70 (316 SS) | Bright | 70 | 33 | ANSI/ASME B18.3 |
| 4-40 x 3/8 Set Screw | 4-40 UNC | 0.375 | Knurled Cup | Internal Hex | A2-70 (304 SS) | Satin | 70 | 34 | ANSI/ASME B18.3 |
| 4-40 x 1/8 Set Screw | 4-40 UNC | 0.125 | Socket Cup | Internal Hex | A4-80 (316 SS) | Polished | 80 | 35 | ANSI/ASME B18.3 |