S-92750A107 4-40 x 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through the Tri-Lobe shank design that creates secure, permanent threads in sheet metal
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in industrial environments
• Precise installation control with T10 Torx drive that prevents cam-out and reduces tool slippage
• Excellent material displacement through thread forming design that eliminates chip formation in sheet metal applications
• Reliable fastening performance with 4-40 UNC coarse threads providing strong holding power in thin materials
• Simplified inventory management with standardized No. 44 drill bit compatibility for consistent hole preparation
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These 4-40 UNC Tri-Lobe tapping screws are specifically engineered for demanding sheet metal applications where vibration resistance and permanent fastening are critical. The thread forming design with Tri-Lobe shank cross-section displaces material without creating chips, eliminating contamination risks in electrical enclosures, HVAC systems, and automotive assemblies. The T10 Torx drive ensures precise torque application, reducing installation errors and preventing head stripping in high-volume production environments. Manufactured from zinc-plated steel, these screws provide reliable corrosion protection while maintaining the strength required for industrial fastening applications. The coarse thread spacing and fully threaded design deliver maximum pull-out resistance in thin-gauge materials, making them ideal for electronic chassis, machinery panels, and structural sheet metal components.

Specification Summary & Compliance

These tapping screws feature 4-40 UNC thread with Class 2A tolerance standards and coarse thread spacing for optimal performance in sheet metal. The CA type thread forming design requires No. 44 drill bit (0.086" diameter) for proper hole preparation. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring global compliance for industrial applications. The right-hand thread direction and fully threaded configuration provide consistent fastening performance across all standard sheet metal thicknesses.