S-99461A310 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life in plastic assemblies.
• Excellent holding power in plastic materials due to the TRS thread forming design, which creates strong, permanent threads without chipping or cracking the substrate.
• Efficient, high-torque installation enabled by the Phillips No. 2 drive, providing a secure fit and reducing the risk of cam-out during assembly.
• Reduced driving torque and superior strip-out resistance thanks to the unique Tri-Lobe shank cross-section, which displaces material smoothly during thread forming.
• Maximum grip and pull-out strength from the fully threaded design, ensuring the screw is securely engaged along its entire 3/8" length.
• Broad compatibility with standard drill bits, designed for use with a No. 32 drill bit (0.116" diameter) for a precise and reliable fit in plastic applications.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and reliability for industrial and consumer products.

Professional Applications & Engineering Value

This 316 Stainless Steel TRS thread forming screw is engineered to solve common fastening challenges in plastic applications, where material integrity and joint reliability are paramount. The thread forming (Tapping Method) action of the Tri-Lobe shank compresses the plastic rather than cutting it, which eliminates chips and creates a tighter, more vibration-resistant fit. This is critical in industries like automotive, electronics, and consumer goods, where corrosion resistance from the 316 grade ensures longevity even in moist or chemically aggressive environments. The combination of a Phillips drive and a blunt tip allows for controlled, precise installation, minimizing the risk of over-torque and material stress. This screw delivers consistent performance, reducing assembly time and improving the durability of the final product.

Specification Summary & Compliance

This screw conforms to standard inch measurements with a No. 6 screw size, 0.138" thread diameter, and 19 threads per inch (TPI). It is a right-hand threaded, fully threaded fastener with a pan head style. The product is manufactured to precise dimensional standards for reliable performance and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and suitable for global industrial use.