S-93406A102 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced vibration resistance and clamping force due to the wide truss head design, preventing loosening in dynamic applications.
• Efficient, self-tapping installation with a pointed tip and thread-forming (Type A/AB) design, eliminating the need for pre-tapped holes.
• Optimized for sheet metal with a No. 44 drill bit size recommendation, ensuring clean, secure fastening in materials up to 0.025" thick.
• Reliable drive engagement with a Phillips No. 1 drive, reducing cam-out and enabling consistent torque application.
• Full-threaded design for maximum thread engagement and holding power along the entire 3/4" length.
• Compliance with major environmental and safety regulations including RoHS 3 and REACH, ensuring suitability for regulated industries.

Professional Applications & Engineering Value

This No. 4-24 thread forming tapping screw is engineered to solve critical challenges in sheet metal fabrication and assembly. The 18-8 stainless steel material provides excellent strength and resistance to rust, which is vital for longevity in demanding conditions. The truss head offers a larger bearing surface, distributing clamp load effectively to prevent sheet distortion and provide superior resistance to vibration loosening—a common failure point in machinery and enclosures. The thread forming (Type A/AB) design with a pointed tip creates strong, clean threads in the parent material without generating chips, making it ideal for automated or high-volume production lines where speed and reliability are paramount. This combination of a Phillips drive and precise thread geometry ensures quick, secure installations, reducing assembly time and improving overall structural integrity in HVAC, electronic chassis, and automotive panel applications.

Specification Summary & Compliance

This screw conforms to standard inch system dimensions with a thread size of No. 4-24 (0.112" diameter, 24 TPI) and a 3/4" length. It features a Class 2A thread fit for general applications and is designed as a Type A/AB thread forming tapping screw for use in sheet metal. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.