S-97705A401 8-32 x 3/16" QQ-P-35, MS51021-31 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-term reliability in harsh environments
• Maximum holding power achieved through the cup point tip design that bites into surfaces for secure, permanent fastening
• Precision thread fit with Class 3A tolerance ensuring consistent, vibration-resistant connections in critical assemblies
• Easy installation and removal with hex drive design providing positive tool engagement and high torque capability
• Industry-standard compatibility through 8-32 UNC coarse threads that match common industrial equipment and components
• Space-saving headless design allowing for flush mounting in applications with limited clearance
• Regulatory compliance assurance meeting Fed. Spec. QQ-P-35, RoHS 3, and REACH for global market acceptance

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers exceptional engineering value in applications requiring permanent shaft positioning and component security. The 18-8 stainless steel composition provides excellent corrosion resistance for machinery operating in humid or chemically aggressive environments, while the cup point tip creates deep indentation in shafts and collars to prevent rotational slippage under vibration. The Class 3A thread fit ensures precise engagement with mating components, eliminating play in precision assemblies. The hex headless design with 5/64" drive accommodates confined spaces in motor assemblies, gearboxes, and precision instruments where traditional fasteners cannot be used. These industrial set screws maintain dimensional stability across thermal cycles, making them ideal for manufacturing equipment, automotive components, and electrical enclosures requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This precision fastener features 8-32 UNC coarse threads with Class 3A fit for superior dimensional accuracy and thread engagement. Manufactured to Fed. Spec. QQ-P-35 (MS51021-31) standards, the set screw maintains consistent quality across production batches. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substance restrictions. With right-hand thread direction and 3/16" length, this industrial-grade component delivers reliable performance in demanding mechanical applications where precision and compliance are critical.