S-97705A142 2-56 x 3/16" QQ-P-35, MS51021-2 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, ensuring secure fastening without loosening
• Easy installation and removal with 0.035" hex drive design, providing reliable torque transmission and tool accessibility
• Enhanced grip and anti-rotation from the cup point tip that bites into mating surfaces for permanent positioning
• Space-saving headless design ideal for applications where protruding fastener heads are not feasible
• Reliable coarse UNC threading (2-56) that resists vibration and maintains integrity under dynamic loads
• Full regulatory compliance meeting Fed. Spec. QQ-P-35, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

This 2-56 UNC set screw delivers exceptional engineering value in precision assembly applications where space constraints and vibration resistance are critical. The 18-8 stainless steel composition provides excellent corrosion resistance, making it suitable for harsh environments including marine, chemical processing, and outdoor equipment. The headless construction with hex drive allows for flush mounting in tight spaces while maintaining easy serviceability. The cup point tip creates permanent indentation in shaft components, preventing slippage in high-torque applications such as motor couplings, gear assemblies, and precision machinery. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of cross-threading and providing consistent clamping force in automated production environments.

Specification Summary & Compliance

This precision set screw features 2-56 UNC coarse thread with Class 3A fit for superior dimensional accuracy and thread engagement. Manufacturing complies with Fed. Spec. QQ-P-35 (MS51021-2) for consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global industrial markets. The right-hand thread direction and standardized dimensions provide interchangeability with existing industrial components and tooling systems.