S-90280A835 10-32 x 1 1/4" ASME B18.6.3 Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments
• Superior tensile strength of 60,000 psi provides reliable load-bearing capacity for demanding mechanical assemblies
• Precision Class 2A thread fit guarantees consistent engagement and vibration resistance in fine-threaded applications
• Optimized fillister head design offers enhanced clearance and professional appearance while accommodating standard slotted drivers
• Full threading along the 1¼" length enables maximum grip depth and uniform stress distribution across fastened components
• Rockwell B69 hardness rating maintains structural integrity under repeated installation and operational stresses
• Regulatory compliance assurance meets ASME B18.6.3 specifications while adhering to RoHS 3 and REACH environmental standards

Professional Applications & Engineering Value

Engineered for precision fastening in industrial equipment, electronic enclosures, and machinery assemblies, these 10-32 UNF fillister head screws address critical challenges in vibration-prone environments. The fine UNF threading creates more contact points per inch compared to coarse threads, significantly improving resistance to loosening under dynamic loads. The zinc-plated steel construction provides a sacrificial barrier against oxidation, extending service life in moisture-exposed applications. The high-profile fillister head design allows for deeper driver engagement and distributes clamping force over a wider surface area, preventing damage to sensitive materials while maintaining a sleek, professional appearance. These characteristics make them particularly valuable in precision manufacturing, automotive subsystems, and industrial maintenance where reliable, repeatable fastening is paramount.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 dimensional standards with Class 2A thread fit tolerances ensuring consistent mating with corresponding UNF nuts and threaded holes. The 10-32 UNF fine thread configuration maintains precise pitch control for secure fastening in thin-section materials. Full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) chemical regulations ensures environmental responsibility and global market acceptance. The right-hand threading follows industry-standard installation conventions while the fully threaded 1¼" length provides maximum utility across various material thicknesses.