S-93445A440 1/4"-20 x 3/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional vibration resistance through precision serrations that prevent loosening under dynamic loads
• Maximum thread engagement with Class 3A fit ensuring precise, secure fastening in critical applications
• Easy installation and removal using standard 1/8" hex tools without protruding head interference
• Enhanced material strength with Rockwell B80 hardness providing reliable performance under heavy loads
• Optimized grip surface with cup tip design for secure contact and minimal surface damage
• Industry compliance assurance meeting ASME B18.3 standards for consistent quality and reliability

Professional Applications & Engineering Value

This 1/4"-20 UNC Class 3A set screw delivers exceptional engineering value in applications requiring permanent, vibration-resistant fastening. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements. The precision serrations create multiple locking points that prevent rotational slippage in high-vibration environments like motors, gearboxes, and power transmission systems. The hex headless design allows for flush mounting in confined spaces while maintaining high torque capability. With coarse UNC threads and Class 3A fit, this set screw ensures quick installation and maximum holding power in industrial equipment, manufacturing fixtures, and precision assemblies where reliability is critical.

Specification Summary & Compliance

This set screw features precise 1/4"-20 UNC coarse threads with Class 3A thread fit for superior engagement and holding power. Manufactured to ASME B18.3 specifications ensuring dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant meeting current environmental regulations. Additional specifications include right-hand thread direction, 3/4" length, cup tip configuration, and Rockwell B80 hardness for optimal mechanical properties in demanding industrial applications.