S-92311A390 9/16"-12 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional holding power provided by the cup point design that bites into shafts for secure, permanent positioning
• Precise thread engagement with Class 3A fit ensuring reliable fastening in critical applications
• High strength durability from Rockwell B80 hardness rating for resistance to deformation under heavy loads
• Easy installation and removal with 9/32" hex drive allowing high torque application without stripping
• Reliable coarse threading (UNC 9/16"-12) that resists loosening from vibration and simplifies alignment
• Industry compliance assurance meeting ASME B18.3 standards and environmental regulations (RoHS 3 & REACH)

Professional Applications & Engineering Value

This 9/16"-12 UNC set screw delivers exceptional engineering value for industrial applications requiring permanent component positioning. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor elements. The hex headless design with cup point creates a flush mounting surface while generating superior holding force by displacing material into the shaft. This Class 3A thread fit ensures precise engagement in pulleys, gears, and collars, preventing slippage in high-torque environments. The coarse thread spacing maintains reliability in vibrating systems, while the 9/32" drive size accommodates standard tools for efficient installation and maintenance cycles.

Specification Summary & Compliance

This set screw features 9/16"-12 UNC coarse threads with Class 3A precision fit for exacting dimensional requirements. Manufacturing complies with ASME B18.3 specifications for consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) compliance for chemical safety regulations. With Rockwell B80 hardness and right-hand thread direction, this fastener delivers reliable performance in demanding industrial applications where dimensional stability and regulatory compliance are critical.