SS316 Phillips US Standard Countersunk Self-Tapping Screw 8GA x 3/8-1-3/4 A4 Grade

Product Overview
The SS316 Phillips US standard countersunk self-tapping screw is a general-purpose fastener designed to American specifications, made from 316 (A4 grade) austenitic stainless steel as the core material. With a standard diameter of 8GA (approximately 4.17mm) and available in lengths ranging from 3/8" to 1-3/4" (approximately 9.5mm to 44.5mm), it features an 82° US countersunk head and Phillips drive recess, combining ease of installation with excellent corrosion resistance. It is widely used for fastening various panels and profiles, making it the preferred fastening solution for highly corrosive environments and outdoor applications.

Product Applications
Outdoor & Marine Engineering: Coastal construction, ship decks, dock facilities, solar panel mounting brackets, and similar scenarios – providing exceptional salt-spray resistance and weatherability for long-term corrosion-free performance.
Industrial Equipment Assembly: Fastening of HVAC ductwork, machinery housings, sheet metal parts, and stainless steel panels – the countersunk design maintains surface flatness, meeting the assembly and coating requirements of industrial manufacturing.
Food & Medical Fields: Fixing components in food processing equipment and medical devices – 316 stainless steel is non-toxic with no leachable substances, meeting hygienic application standards.
General Construction & Furniture: Installation of outdoor furniture, preserved wood walkways, and metal profile framing – combining corrosion resistance with installation convenience, delivering both durability and aesthetic appeal.