S-90288A835 10-32 x 1 1/4" ASME B18.6.3 Tamper-Resistant One-Way-Drive Stainless Steel Round Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for long-lasting performance in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B96 hardness to withstand high-stress applications
• Precise thread engagement with Class 2A fit and UNF fine threads ensuring secure, vibration-resistant connections
• Tamper-resistant security featuring one-way drive design for permanent installations requiring controlled access
• Full-length threading provides maximum grip and load distribution across the entire fastener length
• Standard-compliant manufacturing per ASME B18.6.3 specifications for guaranteed dimensional accuracy and interchangeability
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These 10-32 UNF rounded head screws deliver critical performance advantages for precision assembly applications where reliability is non-negotiable. The combination of 18-8 stainless steel material and passivated surface treatment creates a robust barrier against chemical exposure and atmospheric corrosion, significantly extending service life in manufacturing equipment, electronic enclosures, and marine components. The fine UNF thread profile with Class 2A tolerance ensures superior vibration resistance compared to coarse-thread alternatives, while the rounded head design with one-way drive provides tamper-proof security for public infrastructure and access-controlled assemblies. Engineered to maintain integrity under sustained loads, these fully threaded fasteners distribute stress evenly across the entire engagement length, preventing localized failure points in critical joints.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit for precise dimensional accuracy. Features 10-32 UNF fine threads with right-hand direction and standard rounded head profile. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring adherence to international standards for hazardous substance restrictions.