S-92311A403 3/4"-10 x 5/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life
• Exceptional holding power provided by the Class 3A thread fit, ensuring a precise, secure, and vibration-resistant connection
• High-strength durability with a Rockwell B80 hardness rating, offering reliable performance under heavy-duty mechanical stress
• Optimized for high-torque installation via the 3/8" hex drive, allowing for easy and secure tightening in confined spaces
• Effective component positioning with the cup point tip design, which bites into the shaft for a non-slip, permanent assembly
• Broad industrial compatibility due to compliance with ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability
• Safe for regulated applications as it is RoHS 3 and REACH compliant, meeting strict environmental and safety standards

Professional Applications & Engineering Value

This 3/4"-10 UNC set screw is engineered to address critical challenges in industrial assembly, where vibration resistance and permanent positioning are paramount. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for applications exposed to moisture, chemicals, or outdoor elements, thereby reducing maintenance and replacement costs. The hex headless design with a 3/8" hex drive allows for high-torque installation in tight spaces, ensuring a flush fit that minimizes protrusion and interference. The cup point tip creates a strong bite into the mating surface, preventing slippage and maintaining alignment in heavy-duty machinery, pulleys, gears, and couplings. By combining a Class 3A thread fit for precision with compliance to ASME B18.3, this set screw delivers reliable performance in demanding sectors like automotive, aerospace, and manufacturing, enhancing overall assembly integrity and longevity.

Specification Summary & Compliance

This set screw features a 3/4"-10 UNC coarse thread with a Class 3A thread fit for high precision and strength. It adheres to the ASME B18.3 standard, ensuring consistent dimensional accuracy and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in environments with strict environmental and health standards.