S-92311A410 3/4"-16 x 1 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh environments.
• Exceptional holding power with Class 3A thread fit, providing a tighter, more secure fastening for critical applications.
• High-strength durability from Rockwell B80 hardness, resisting wear and deformation under heavy loads.
• Secure, flush installation with a hex drive and headless design, ideal for confined spaces and preventing snagging.
• Precise, fine-thread engagement with 3/4"-16 UNF threads, offering improved vibration resistance and clamping force.
• Enhanced grip and alignment from the cup tip, minimizing component slippage and ensuring accurate positioning.
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH, guaranteeing quality and environmental safety.

Professional Applications & Engineering Value

This 3/4"-16 UNF Class 3A set screw is engineered to address common industrial challenges such as component misalignment, vibration-induced loosening, and corrosion in demanding environments. Made from 18-8 stainless steel, it provides excellent resistance to rust and chemicals, making it ideal for machinery, automotive assemblies, and outdoor equipment. The fine thread spacing and Class 3A thread fit ensure a precise, tight hold that withstands dynamic loads, while the hex headless design allows for easy installation in tight spaces without protruding parts. Its cup tip enhances grip on shafts and gears, preventing slippage and improving operational safety. Suitable for heavy-duty set screws applications, this fastener delivers reliable performance in manufacturing, aerospace, and construction sectors where durability and compliance are critical.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for high precision and a UNF thread type (3/4"-16) with fine spacing. It is manufactured from 18-8 stainless steel, hardened to Rockwell B80, and features a right-hand thread direction and cup tip. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.