S-90198A103 Length 3/8" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
- Efficient thread forming design creates strong, permanent threads in sheet metal, eliminating the need for a separate tapping operation.
- Secure, flush-mount fastening with an 82° flat undercut head that sits neatly in countersunk holes for a smooth, professional finish.
- High torque transmission and reduced cam-out from the Phillips No. 1 drive, ensuring reliable installation and driver bit engagement.
- Maximum grip and holding power due to the fully threaded shank, providing consistent clamping force along the entire fastener length.
- Simplified assembly process with compatibility for a standard No. 44 drill bit, designed for materials up to 0.025" thick.
- Compliance with stringent environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.
Professional Applications & Engineering Value
This No. 4-24 x 3/8" 316 Stainless Steel Phillips Flat Head Tapping Screw is engineered to solve critical challenges in sheet metal assembly. Its thread forming technology displaces material to create robust, wear-resistant threads without generating chips, which is vital for preventing electrical shorts and contamination in sensitive enclosures and electronic chassis. The undercut flat head profile ensures a flush finish, eliminating protrusions in tight spaces. Made from 316 stainless steel, it offers exceptional resistance to chemicals and saltwater, making it a reliable choice for marine, chemical processing, and outdoor industrial equipment where corrosion resistance is paramount for long-term structural integrity.
Specification Summary & Compliance
This screw conforms to standard inch measurements with a No. 4-24 thread (0.112" diameter, 24 TPI), a 3/8" length, and a Class 2A thread fit for general applications. The 82° countersink angle is standard for flat head screws. It is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety standards for hazardous substances.
