S-92785A545 1/4"-28 x 1" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh or humid environments
• Exceptional thread precision with Class 3A fit for tighter tolerances and secure, vibration-resistant fastening
• Maximum torque transmission via the 1/8" hex drive, preventing tool slippage and ensuring reliable installation
• Enhanced gripping power from the 90° cone point tip, which bites into materials for superior component retention
• High mechanical durability with Rockwell B80 hardness, offering excellent resistance to wear and deformation
• Broad regulatory compliance including RoHS 3 and REACH, ensuring safety and environmental standards are met
• Optimized for fine-thread applications with 1/4"-28 UNF right-hand thread, providing increased tensile strength in compact assemblies

Professional Applications & Engineering Value

This 1/4"-28 UNF Class 3A set screw is engineered to address critical challenges in precision assemblies where vibration resistance and corrosion protection are paramount. The 18-8 stainless steel material ensures long-term reliability in demanding conditions, from marine equipment to food processing machinery, without compromising structural integrity. The cone point tip with a 90° angle delivers concentrated clamping force, effectively securing pulleys, gears, and collars on shafts while minimizing surface damage. Combined with the hex drive design and fine thread spacing, it enables high torque application and superior holding power in tight spaces, reducing maintenance needs and downtime in industrial operations.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications, ensuring dimensional accuracy and performance reliability. Threads are manufactured to Class 3A fit standards for precise engagement and are configured as 1/4"-28 UNF right-hand fine threads. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated and environmentally conscious industries.