S-99512A644 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with T25 Torx drive prevents cam-out and ensures secure installation in plastic assemblies
• Excellent corrosion resistance through zinc-plated steel construction extends service life in various industrial environments
• Clean thread forming action with TRS tri-lobe design creates strong threads without generating plastic chips or debris
• Optimized plastic fastening with 14 TPI thread pitch and blunt tip provides reliable holding power in plastic materials
• Enhanced driving stability from rounded pan head design distributes clamping force evenly across fastened surfaces
• Simplified installation process using standard No. 15 drill bit (0.18" diameter) for precise hole preparation
• Environmental compliance assurance meeting RoHS 3 and REACH standards for sustainable manufacturing operations

Professional Applications & Engineering Value

These No. 10 x 3/8" T25 Torx tapping screws are specifically engineered for plastic fastening applications where traditional cutting screws would cause material damage. The TRS thread forming design with tri-lobe shank cross-section displaces plastic material rather than cutting it, creating zero chips while forming permanent, vibration-resistant threads. This zinc-plated steel construction provides essential corrosion protection for electronics enclosures, automotive plastic components, and outdoor equipment assemblies. The T25 Torx drive system delivers maximum torque transfer without stripping, crucial for high-volume production environments where consistent fastening quality is paramount. These screws solve common plastic assembly challenges including material cracking, thread stripping, and contamination from plastic debris.

Specification Summary & Compliance

These thread forming screws feature a No. 10 screw size with 0.19" thread diameter and 14 threads per inch in right-hand orientation. The 3/8" length screws are fully threaded with standard Class 2A tolerance for consistent performance. Manufactured with zinc-plated steel and pan head style, they require a No. 15 drill bit (0.18" diameter) for proper installation in plastic materials. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures they meet current industry standards for restricted substances.