S-95893A243 Length 40 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or demanding industrial environments
• Enhanced torque transmission and reduced cam-out with T20 Torx drive, ensuring secure fastening and tool longevity
• Reliable thread forming in plastics using TRS design to create strong, permanent threads without pre-tapping
• Clean, flush installation with 90° flat head and standard profile for smooth surfaces in plastic assemblies
• Full 40mm thread engagement provides maximum holding power across the entire fastener length
• Simplified installation process with compatible #30 drill bit size (0.1285") for precise hole preparation
• Compliance with global environmental standards including RoHS 3 and REACH for international market acceptance

Professional Applications & Engineering Value

These M4 thread forming screws deliver exceptional value in plastic assembly applications where vibration resistance and material integrity are critical. The 18-8 stainless steel composition prevents galvanic corrosion when joining dissimilar materials, while the TRS thread forming design displaces plastic material to create durable, strip-resistant threads without generating chips. The T20 Torx drive system addresses common installation challenges by providing superior torque transfer compared to Phillips or slotted drives, reducing assembly time and improving consistency in high-volume manufacturing. The fully threaded M4 x 40mm configuration ensures maximum pull-out strength in thermoplastic applications, making these metric tapping screws ideal for electronics enclosures, automotive trim, and industrial equipment where reliable plastic fastening is essential.

Specification Summary & Compliance

These metric TRS tapping screws feature M4 diameter with 1.79mm approximate thread pitch and 40mm length, manufactured to standard flat head profile with 90° countersink angle. The thread forming design follows industry-standard TRS specifications for plastic applications, requiring #30 drill bit (0.1285") for proper hole preparation. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial fastener applications.