S-99461A216 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in demanding environments
• Excellent vibration resistance through the tri-lobe shank design that prevents loosening under dynamic loads
• Efficient thread forming action creates strong, permanent threads in plastic materials without chips or debris
• Easy installation and removal with Phillips No. 3 drive that provides reliable torque transfer
• Optimized plastic assembly with blunt tip design that reduces stress cracking in sensitive materials
• Full threading coverage ensures maximum grip length and uniform load distribution
• Compliance with environmental regulations including RoHS 3 and REACH for global industrial applications

Professional Applications & Engineering Value

These thread forming TRS screws are specifically engineered for plastic assembly applications where traditional fasteners often fail. The 18-8 stainless steel construction provides exceptional corrosion resistance while the unique tri-lobe shank cross-section displaces material during installation, creating a secure, vibration-resistant fit that eliminates the need for additional locking components. The thread forming tapping method produces clean, strong threads in plastic substrates without generating chips that could interfere with sensitive components. With Phillips drive style and standardized pan head design, these screws offer consistent installation performance across high-volume production environments, reducing assembly time and improving manufacturing efficiency in automotive, electronics, and consumer goods applications.

Specification Summary & Compliance

These 1/4"-10 thread forming screws feature precise Class 2A thread tolerances with a tri-lobe shank cross-section and fully threaded design for maximum holding power. The fasteners comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet the strictest international standards for industrial use. Manufactured to consistent dimensional specifications including 0.492" head diameter and 1/2" length, these screws provide reliable performance in plastic assembly applications requiring No. 4 drill bit (0.209" diameter) preparation.