S-91410A535 1/4"-20 x 3/8" ASME B18.6.2 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior holding power with cup point design that bites into materials for maximum resistance against loosening
- Exceptional durability provided by Rockwell B80 hardness steel construction for long service life in demanding applications
- Reliable coarse threading (UNC 1/4"-20) ensures quick installation and secure fastening in various materials
- Precise Class 2A thread fit guarantees consistent performance and compatibility with standard mating components
- Secure external square drive allows for high torque application without stripping or cam-out issues
- Comprehensive regulatory compliance including ASME B18.6.2 standards for dimensional accuracy and material quality
- Environmentally responsible manufacturing with RoHS 3 and REACH compliance for safe use in regulated industries
Professional Applications & Engineering Value
This steel set screw with UNC coarse threading and cup point design delivers exceptional engineering value in industrial applications where vibration resistance and permanent positioning are critical. The 1/4"-20 thread size combined with Class 2A thread fit provides reliable fastening in machinery, automotive assemblies, and manufacturing equipment where precise component alignment is essential. The Rockwell B80 hardness ensures the screw maintains its structural integrity under repeated stress cycles, while the external square drive enables high-torque installation without compromising the fastener's integrity. This combination of features makes it ideal for securing collars, gears, and pulleys to shafts in environments where loosening could cause equipment failure or safety hazards.
Specification Summary & Compliance
This set screw features precise Class 2A thread fit with UNC 1/4"-20 coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.6.2 specifications for dimensional accuracy and performance standards. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) regulations for environmental safety and restricted substance control. Additional specifications include 3/8" length, 1/4" head width, and cup point tip configuration for optimal performance in industrial fastening applications.
