S-98903A256 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring longevity in harsh industrial environments.
• Efficient thread forming design (Type A) creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time.
• Optimized flat head with undercut profile provides a flush, low-profile finish that minimizes snagging and improves aesthetics.
• Reliable Phillips No. 2 drive offers secure torque transmission and reduces cam-out during high-speed assembly.
• 82° countersink angle ensures a tight, flush fit in standard sheet metal applications, enhancing structural integrity.
• Fully threaded shank maximizes grip length and holding power across the entire 3/4" length in thin materials.
• Compliance with RoHS 3 and REACH guarantees safe, environmentally responsible use in global supply chains.

Professional Applications & Engineering Value

These No. 8 x 3/4" flat head tapping screws are precision-engineered for demanding sheet metal applications, where vibration resistance and material integrity are critical. The 18-8 stainless steel composition provides excellent resistance to rust and chemical exposure, making them ideal for outdoor equipment, HVAC systems, and electronic enclosures. The thread forming Type A design displaces material to form strong, load-bearing threads without creating chips, preventing loosening under dynamic loads. Combined with the Phillips drive and undercut flat head, these screws deliver fast, flush installations that maintain surface continuity and reduce assembly costs in high-volume production.

Specification Summary & Compliance

This screw features a 0.164" thread diameter with 15 threads per inch and is fully threaded for consistent engagement. It adheres to standard inch measurements with a 3/4" length and 82° countersink angle for compatibility with common sheet metal thicknesses. Manufactured to precise dimensional tolerances, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are used. Designed for use with a No. 29 drill bit (0.136" diameter), it supports efficient installation in materials up to 0.025" thick.