S-98637A016 2-56 x 1/8" MS51963-1 Set Screws

Key Features & Benefits at a Glance

• Superior holding power with Class 3A thread fit for precise, vibration-resistant fastening in demanding applications
• Enhanced corrosion resistance through cadmium plating, extending service life in industrial environments
• Exceptional durability from Rockwell C45 hardened alloy steel, maintaining thread integrity under high stress
• Secure installation with 0.035" hex drive design, preventing tool slippage and ensuring proper torque application
• Maximum grip penetration with cup point tip design, creating permanent seating in shaft collars and hubs
• Reliable coarse threading using UNC standard, providing quick assembly and reduced cross-threading risk
• Space-saving headless configuration allowing flush mounting where clearance is limited

Professional Applications & Engineering Value

This 2-56 UNC Class 3A cup point set screw delivers critical engineering solutions for precision machinery and industrial equipment. The cadmium-plated alloy steel construction provides essential corrosion protection while maintaining the Rockwell C45 hardness required for repeated adjustments without thread deformation. The cup point tip creates permanent dimples in shafts, preventing rotational slippage in high-torque applications such as motor collars, gear assemblies, and precision instruments. The hex drive design ensures secure tool engagement during installation, while the headless configuration enables flush mounting in confined spaces. Meeting MS51963-1 specifications, this set screw provides reliable performance in aerospace, automotive, and manufacturing applications where vibration resistance and positional accuracy are paramount.

Specification Summary & Compliance

This precision fastener features 2-56 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and interchangeability. The 1/8" length and 0.086" thread diameter provide optimal sizing for compact assemblies. Manufactured to meet MS51963-1 specifications with right-hand thread direction and 0.035" hex drive compatibility. The cadmium-plated alloy steel construction complies with industrial standards for corrosion resistance and mechanical performance, ensuring reliable operation in critical applications.