S-98057A652 1/4"-20 x 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• Excellent vibration resistance and secure locking provided by the cup point design that bites into mating surfaces
• Reliable installation and removal with the slotted drive style, compatible with standard screwdrivers
• Precise thread engagement with Class 2A fit UNC coarse threads, ensuring consistent performance and ease of assembly
• Optimized mechanical strength with Rockwell B80 hardness, providing durable performance under load
• Space-saving headless design allowing for flush mounting in applications with limited clearance
• Broad industrial compliance meeting ASME B18.3 standards for dimensional accuracy and quality assurance

Professional Applications & Engineering Value

This 1/4"-20 UNC set screw delivers exceptional engineering value in demanding applications where corrosion resistance and vibration-proof fastening are critical. The 316 Stainless Steel material provides superior protection against corrosive elements, making it ideal for marine, chemical processing, and food industry equipment. The headless slotted design with cup point creates permanent positioning by concentrating pressure on a small contact area, preventing component slippage in pulleys, collars, and gears. The coarse UNC thread with Class 2A fit ensures quick installation and reliable performance in high-vibration environments, while the Rockwell B80 hardness maintains structural integrity under repeated stress cycles.

Specification Summary & Compliance

This set screw features precise 1/4"-20 UNC coarse threads with Class 2A thread fit for standard industrial applications. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries.