S-99117A740 10-32 x 8" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Enhanced torque transmission through Phillips No. 2 drive design, reducing cam-out and improving installation efficiency
• Reliable thread engagement with Class 2A thread fit ensuring precise mating with UNF fine-threaded components
• Optimized load distribution from rounded pan head design that minimizes surface damage during tightening
• High mechanical strength with 60,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Versatile partial threading allowing unthreaded shank sections for precise clamping and alignment control
• Regulatory compliance assurance meeting ASME B18.6.3 standards while being RoHS 3 and REACH compliant

Professional Applications & Engineering Value

These 10-32 UNF zinc-plated steel screws deliver exceptional performance in industrial assembly applications where corrosion resistance and mechanical reliability are paramount. The fine thread configuration provides superior vibration resistance compared to coarse threads, making them ideal for machinery, equipment manufacturing, and structural applications requiring secure fastening over extended 8" spans. The zinc plating creates a protective barrier against environmental factors, while the partially threaded design allows for precise clamping force distribution. The Phillips drive system ensures efficient installation with standard tools, and the rounded pan head offers a clean aesthetic finish while preventing snagging in operational environments.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance for reliable mating with UNF threaded components. These screws comply with ASME B18.6.3 mechanical and dimensional specifications, ensuring interchangeability and performance consistency. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety. The right-hand thread direction and fine thread spacing adhere to Unified National Fine thread standards, while the 8" length with partial threading provides flexibility in various industrial fastening scenarios.