S-90357A121 6-32 x 7/16" Alloy Steel Ultra-Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance with black-oxide coating for reliable performance in demanding industrial environments
• Superior Thread Engagement through Class 3A precision fit ensures secure fastening and vibration resistance
• Maximum Strength Performance with 140,000 psi tensile strength and Rockwell C32 hardness for heavy-duty applications
• Space-Saving Design featuring ultra-low socket head profile ideal for confined spaces and compact assemblies
• Optimized Drive Efficiency with hex drive design providing superior torque transmission and reduced cam-out risk
• Reliable Coarse Thread Performance using 6-32 UNC threads for faster installation and better resistance to cross-threading
• Environmental Compliance Assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These black-oxide alloy steel socket head cap screws deliver exceptional engineering value in precision assembly applications where space constraints and reliability are critical. The ultra-low profile head design enables installation in tight clearance applications while maintaining full hex drive engagement for maximum torque application. The Class 3A thread fit provides superior dimensional accuracy that eliminates play and ensures consistent clamping force in vibration-prone environments. The combination of 140,000 psi tensile strength and Rockwell C32 hardness makes these 6-32 UNC coarse thread fasteners ideal for machinery, automotive, and industrial equipment where high-strength fastening solutions are required. The black-oxide surface treatment offers enhanced corrosion protection while maintaining dimensional stability across temperature variations.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 3A thread fit tolerance and length tolerance of -0.005" to 0.005". Features 6-32 UNC coarse threads with right-hand orientation and fully threaded design. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring strict chemical substance control.