S-99461A515 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or demanding environments.
• Efficient thread forming with the TRS Tri-Lobe shank design creates strong, reliable threads in plastic without pre-tapping.
• High thread density of 42 TPI ensures a tight, secure fit and excellent resistance to vibration loosening.
• Optimized for plastic assembly, the blunt tip and thread forming action minimize stress cracking in plastic materials.
• Easy installation with a No. 0 Phillips drive, providing good torque transfer and reducing cam-out risk.
• Precise fit with a recommended No. 56 drill bit (0.0465" diameter) for accurate hole sizing and optimal thread engagement.
• Compliant and reliable, meeting RoHS 3 and REACH standards for safe use in various industrial applications.

Professional Applications & Engineering Value

This No. 0 x 1/4" TRS tapping screw is engineered to solve common fastening challenges in plastic assembly. Its 18-8 stainless steel material offers excellent durability and corrosion resistance, while the thread forming TRS type with a Tri-Lobe shank cross-section displaces material to form strong, load-bearing threads without creating chips. This design significantly reduces the risk of plastic cracking or boss failure, a critical concern in plastic fastening. The fully threaded body and 42 TPI provide maximum holding power in shallow engagements, making it a reliable choice for electronics enclosures, automotive trim, and consumer products where vibration resistance and material integrity are paramount.

Specification Summary & Compliance

This screw features a No. 0 size with a 1/4" length and 0.06" thread diameter. It has a pan head with a No. 0 Phillips drive and is fully threaded. Manufactured to precise dimensional standards for thread forming applications in plastic. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.