S-90193A127 1/4"-20 x 1" ASME B18.6.3 Stainless Steel Flanged Hex Head Screws with Slotted Drive

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments including marine and chemical applications
• High tensile strength of 100,000 psi ensures reliable performance under heavy loads and vibration
• Flanged design eliminates need for separate washers, speeding up assembly and providing wider bearing surface
• Fully threaded shank offers maximum grip length and uniform clamping force across the entire fastener
• External hex/slotted drive combination provides versatile installation options with standard tools
• Class 2A thread fit guarantees consistent, reliable engagement while allowing for easy assembly
• Rockwell B100 hardness delivers excellent durability and resistance to wear in demanding applications

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 1/4-20 UNC hex head screws in 316 Stainless Steel provide critical corrosion resistance where exposure to moisture, chemicals, or salt spray is a concern. The fully threaded flanged design solves common assembly challenges by distributing clamp load effectively while eliminating separate washers - reducing inventory and installation time. With 100,000 psi tensile strength and coarse threading, these fasteners maintain secure connections in high-vibration machinery, structural frameworks, and marine equipment where reliability is non-negotiable. The external hex/slotted drive accommodates both power and manual tooling, making them versatile for maintenance and production lines alike.

Specification Summary & Compliance

This 1/4-20 UNC hex head screw features Class 2A thread fit per ASME standards, ensuring precise dimensional accuracy and reliable engagement. Manufactured to ASME B18.6.3 specifications with complete RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, meeting the latest environmental and safety regulations for industrial components. The coarse thread spacing and right-hand thread direction follow industry-standard configurations for consistent performance across applications.