S-95844A450 Length 25 mm DIN 7982 Type C Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time and labor costs.
• Reliable flush installation with a standard 80° flat head and Phillips drive for a secure, unobtrusive finish that prevents snagging.
• High pull-out strength from fully threaded M3.9 shank, ensuring maximum holding power in materials up to 0.025" thick.
• Guaranteed dimensional accuracy and interchangeability through strict adherence to DIN 7982 Type C specifications.
• Enhanced workplace safety with RoHS 3 compliance, free from hazardous substances for environmentally responsible manufacturing.
• Optimized for sheet metal applications with pointed tip for easy starting and right-hand threading for standard installation procedures.

Professional Applications & Engineering Value

These M3.9 x 25mm tapping screws deliver exceptional engineering value in sheet metal assembly applications where vibration resistance and material integrity are critical. The 18-8 stainless steel composition provides excellent corrosion resistance, eliminating rust-related failures in demanding environments. The thread forming technology (Type C) cold-forms mating threads in ductile materials, creating stronger connections than conventional thread-cutting screws while preventing chip accumulation. The Phillips flat head design with 80° countersink angle ensures flush mounting in pre-drilled holes, maintaining aerodynamic surfaces and preventing interference in compact assemblies. These metric tapping screws are engineered to withstand the rigors of industrial fastening in electronics enclosures, HVAC systems, and automotive components where reliable performance is non-negotiable.

Specification Summary & Compliance

These fully threaded screws feature M3.9 diameter and 25mm length with standard metric tolerances. Manufacturing strictly follows DIN 7982 Type C specifications for thread forming tapping screws, ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) compliant, meeting environmental regulations for hazardous substance restrictions. The right-hand thread direction and pointed tip facilitate straightforward installation in sheet metal applications up to the specified 0.025" maximum drilling thickness.