S-99461A110 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in humid or demanding environments
• Efficient thread forming with TRS tri-lobe shank design creates strong, vibration-resistant threads in plastic materials without pre-drilling
• Easy installation and removal thanks to No. 1 Phillips drive and pan head design providing reliable torque transfer and flush seating
• Reduced material stress with blunt tip and thread forming technology that displaces rather than removes plastic material
• Precise fitment with 0.112" thread diameter and 20 threads per inch ensuring secure fastening in plastic components
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use in consumer and industrial applications
• Versatile application with 1/4" fully threaded length providing consistent holding power throughout the engagement area

Professional Applications & Engineering Value

These 18-8 stainless steel tapping screws deliver exceptional value in plastic assembly applications where corrosion resistance and material integrity are critical. The TRS thread forming technology combined with the tri-lobe shank cross-section creates permanent, high-retention threads in thermoplastic materials without generating chips or debris that could compromise electronic components. The Phillips pan head design offers excellent drive stability while maintaining a low profile for space-constrained applications. Engineered specifically for plastic fastening, these screws eliminate the need for threaded inserts in many applications, reducing assembly time and component costs while providing reliable vibration resistance in automotive trim, electronic enclosures, and consumer products.

Specification Summary & Compliance

This No. 4 x 1/4" tapping screw features precision thread forming (TRS) technology with tri-lobe shank cross-section, right-hand threading, and fully threaded design. Manufactured to exacting dimensional standards with 0.112" thread diameter and 20 threads per inch for consistent performance. The screw complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries. Compatible with No. 37 drill bit (0.104" diameter) for applications requiring pilot holes.