S-91410A851 3/4"-10 x 4" ASME B18.6.2 Set Screws

Key Features & Benefits at a Glance

• Superior torque transmission with a square head and external square drive, preventing tool slippage during high-tension applications
• Enhanced durability and wear resistance thanks to steel construction with Rockwell B80 hardness, ensuring long service life in demanding environments
• Reliable and secure fastening provided by the coarse UNC thread and Class 2A thread fit, enabling quick assembly and vibration resistance
• Broad industrial compatibility with the 3/4"-10 thread size and 4" length, making it ideal for heavy machinery and equipment
• Positive locking grip from the cup tip design, which bites into surfaces to prevent component movement
• Compliance with major industry standards including ASME B18.6.2, ensuring consistent quality and performance
• Safe for regulated industries as it is RoHS 3 and REACH compliant, meeting environmental and health safety requirements

Professional Applications & Engineering Value

This 3/4"-10 UNC square head set screw is engineered to solve critical fastening challenges in heavy-duty industrial settings. The steel material and Rockwell B80 hardness provide exceptional strength, resisting deformation under high loads and repetitive stress. Its coarse thread and Class 2A thread fit ensure easy installation and reliable holding power, even in applications prone to vibration. The external square drive and square head design allow for maximum torque application without cam-out, making it ideal for securing pulleys, gears, and other components in machinery. This 4-inch set screw with a cup tip offers deep engagement and prevents loosening, delivering dependable performance in manufacturing, automotive, and construction applications where precision and durability are paramount.

Specification Summary & Compliance

This set screw features a 3/4"-10 UNC coarse thread with Class 2A thread fit for standard tolerance and ease of assembly. It is manufactured in compliance with ASME B18.6.2 specifications, ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances.