S-95639A377 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel material, ideal for harsh environments and extended service life in sheet metal applications.
• Excellent holding power and vibration resistance provided by the thread forming (Type A/AB) design, creating strong, permanent threads in pre-drilled holes.
• Streamlined and flush installation with the standard oval head and 82° countersink angle, offering a clean, professional finish.
• Efficient and secure drive engagement using a Phillips No. 2 drive, reducing cam-out risk for faster, more reliable installation.
• Optimized for thin materials with a maximum drilling thickness of 0.025", making it perfect for standard sheet metal fastening tasks.
• Full-length threading ensures consistent grip and holding strength along the entire 1-1/2" length of the screw.
• Compliance with global environmental and safety standards (RoHS 3 and REACH), ensuring responsible and safe use in industrial settings.

Professional Applications & Engineering Value

This No. 8 x 1-1/2" 316 Stainless Steel Phillips Oval Head Tapping Screw is engineered to address common challenges in sheet metal fabrication, such as corrosion-induced failure and loosening under vibration. The thread forming technology (Type A/AB) displaces material to form robust internal threads without cutting, which eliminates chips and provides superior resistance to back-out in dynamic applications. The use of 316 stainless steel offers exceptional resistance to chlorides and acidic environments, significantly reducing maintenance needs in industrial, marine, or outdoor settings. Combined with the oval head design and specified No. 29 drill bit preparation, this screw delivers a reliable, flush-mount solution that maintains structural integrity and appearance in demanding assemblies.

Specification Summary & Compliance

This screw conforms to standard inch measurements with a thread diameter of 0.164" and 15 TPI. It is a fully threaded, right-hand drive tapping screw designed for use with a pre-drilled hole (drill bit size No. 29, diameter 0.136"). Manufacturing and material compliance include adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring the product is free of hazardous substances and safe for industrial use.