S-91410A537 1/4"-20 x 1/2" 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 coarse UNC threads and Class 2A fit for reliable fastening in high-vibration environments
- Easy installation and removal thanks to the external square drive design that prevents tool slippage under high torque
- Exceptional durability from Rockwell B80 hardened steel construction that resists wear and deformation
- Secure component positioning with cup point tip that digs into surfaces to prevent rotational movement
- Industry-standard compatibility meeting ASME B18.6.2 specifications for consistent performance across applications
- Environmental compliance assurance with RoHS 3 and REACH regulations for safe use in regulated industries
- Optimized for heavy-duty applications combining 1/2" length with right-hand threading for robust mechanical assemblies
Professional Applications & Engineering Value
This 1/4"-20 UNC square head set screw delivers critical engineering solutions where component slippage can compromise system integrity. The coarse thread spacing provides superior resistance to vibrational loosening in machinery, automotive, and industrial equipment applications. Manufactured from steel with Rockwell B80 hardness, this fastener maintains its structural integrity under repeated stress cycles. The external square drive enables high-torque installation without cam-out issues, while the cup point tip creates positive seating in shafts, collars, and pulleys. These design features make it ideal for permanent or semi-permanent assemblies requiring maximum holding power in demanding environments.
Specification Summary & Compliance
This set screw maintains Class 2A thread tolerance per UNC standards, ensuring proper fit with mating components. Manufacturing complies with ASME B18.6.2 specifications for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for various industrial applications without hazardous substance restrictions.
