S-91775A640 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel finish, ideal for harsh industrial environments.
• Effortless installation using a No. 2 Phillips drive, reducing tool slippage and assembly time.
• Strong, permanent threads created by the thread forming (Type A/AB) design, eliminating the need for pre-tapped holes.
• Clean, finished appearance with a standard oval head that sits flush in an 82° countersink.
• Reliable performance in sheet metal up to 0.025" thick, ensuring secure and vibration-resistant fastening.
• Full-length threading for maximum grip and holding power across the entire screw length.
• Compliance with major environmental regulations (RoHS 3 & REACH), ensuring safe and sustainable use.

Professional Applications & Engineering Value

These No. 6 thread forming screws are precision-engineered for demanding sheet metal applications. The Black-Oxide Steel construction provides a durable barrier against rust, extending the life of your assemblies in environments prone to moisture. The thread forming (Type A/AB) tapping method displaces material to create strong, clean internal threads without generating chips, which is critical for preventing electrical shorts and contamination in sensitive equipment like electrical enclosures, HVAC systems, and automotive panels. The combination of a Phillips drive and fully threaded design ensures quick, straightforward installation and superior pull-out resistance, directly addressing the need for speed and reliability in high-volume manufacturing and maintenance operations.

Specification Summary & Compliance

This fastener features a No. 6 screw size with a 0.138" thread diameter and 18 threads per inch. The oval head is designed for an 82° countersink angle. It conforms to standard thread forming specifications for Type A/AB tapping screws. This product is manufactured to be fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.