Need Corrosion-Resistant Fasteners with High Torque Transmission for Automotive Assembly?

Our flat head tapping screws feature black paint coating on 302HQ stainless steel with T40 6-lobe drive, providing superior corrosion resistance and torque transmission. With ISO-compliant manufacturing and comprehensive inspection protocols including salt spray testing, these fasteners ensure reliable performance in demanding automotive environments. Contact us for customized coating solutions tailored to your assembly requirements.

With 45 years of manufacturing expertise, our comprehensive inspection protocol utilizes professional tools including calipers, protrusion-height gauges, micrometers, and 2.5D/2D projectors to verify critical measurement points such as head diameter, head height, 6-lobe depth, total length, major and minor diameters, thread angle, pitch, and paint surface quality. The black paint coating on the head surface provides enhanced corrosion resistance and aesthetic appeal, while the 6-lobe T40 drive configuration ensures superior torque transmission and reduces cam-out during installation. These flat head tapping screws are ideal for OEM manufacturers and aftermarket customers requiring reliable, salt spray tested industrial fasteners with customized coating solutions for specialized applications.