S-91781A145 6-32 x 5/16" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Precision thread engagement through Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
• Flush mounting capability with standard 82° countersink angle and flat head design for seamless surface integration
• Full-threaded reliability providing maximum grip length and uniform stress distribution across applications
• Industry-standard compliance meeting ASME B18.6.3 specifications for dimensional accuracy and interchangeability
• Environmental responsibility with RoHS 3 and REACH compliance for safe use in regulated industries

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 6-32 UNC flat head slotted screws deliver critical performance advantages in machinery assembly, electronic enclosures, and precision equipment. The 18-8 stainless steel composition combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, significantly extending service life in challenging environments. The coarse UNC threading ensures rapid installation and superior holding power in various materials, while the standard flat head profile with 82° countersink enables flush mounting that eliminates protrusion-related hazards. These fully threaded fasteners maintain 80,000 psi tensile strength under dynamic loads, making them ideal for vibration-prone applications where joint integrity is paramount. The slotted drive design offers compatibility with standard tools while maintaining cost-effectiveness for high-volume production requirements.

Specification Summary & Compliance

This flat head slotted screw features precise Class 2A thread fit with UNC coarse threading (6-32 size) and right-hand thread direction, manufactured to ASME B18.6.3 dimensional standards. The fastener maintains a length of 5/16" with complete threading and standard flat head profile. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for electronics, industrial equipment, and other regulated applications requiring material restriction compliance.