S-91794A544 1/4"-20 x 1 1/4" ASME B18.6.3 Stainless Steel Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications
• Easy installation and removal with slotted drive design compatible with standard screwdrivers
• Secure thread engagement through Class 2A fit UNC coarse threads ensuring vibration resistance and proper fastening
• Enhanced clearance capability with high-profile rounded fillister head design for applications requiring raised fastener profiles
• Full threading coverage along the entire 1-1/4" length providing maximum grip and adjustment flexibility
• Regulatory compliance assurance meeting industry standards for safety and environmental requirements

Professional Applications & Engineering Value

This 1/4"-20 UNC slotted machine screw delivers exceptional engineering value across industrial applications where corrosion resistance and mechanical strength are critical. The 18-8 stainless steel composition with passivated finish provides superior protection against oxidation and chemical exposure, making it ideal for manufacturing equipment, food processing machinery, and marine applications. The rounded fillister head with high-profile design offers improved tool clearance while maintaining a professional appearance. With fully threaded construction and coarse UNC threads, installation is simplified while ensuring reliable performance in vibration-prone environments. These machine screws solve common fastening challenges by combining durability with regulatory compliance for demanding industrial settings.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse thread specifications. Complies with ASME B18.6.3 manufacturing standards for dimensional accuracy and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. Thread specifications include right-hand direction, 1/4"-20 UNC size, and full threading along the 1-1/4" length.