S-92311A308 1/4"-20 x 1 1/8" 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 industrial environments
• Maximum holding power achieved through Class 3A thread fit precision and Rockwell B80 hardness for secure, vibration-resistant fastening
• Easy installation and removal with hex drive design requiring only 1/8" wrench access in confined spaces
• Excellent grip and minimal surface damage thanks to the cup point tip design that concentrates pressure for superior component retention
• Reliable coarse threading with UNC 1/4"-20 specification providing quick assembly and strong engagement in various materials
• Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and interchangeability
• Environmental responsibility with full RoHS 3 and REACH compliance for safe use in regulated applications

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 1/4"-20 UNC set screws deliver exceptional performance in machinery assembly, automotive components, and precision equipment. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining strength, making them ideal for environments exposed to moisture, chemicals, or temperature variations. The hex headless design with cup point ensures flush mounting and superior grip without protruding hardware, solving space constraint challenges while preventing rotational slippage. With Class 3A thread fit and Rockwell B80 hardness, these screws maintain precise alignment and resist loosening under vibration, delivering reliable performance in heavy-duty applications where component security is critical.

Specification Summary & Compliance

This 1/4"-20 UNC set screw features precise Class 3A thread fit tolerances with coarse thread spacing for optimal engagement. Manufactured to ASME B18.3 specifications ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions and chemical safety.