S-94105A641 1/4"-28 x 5/8" ASME B18.3, ASTM F912 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
- Exceptional holding power with Class 3A thread fit for precise, vibration-resistant assemblies in demanding applications
- Superior corrosion resistance from the black-oxide finish, extending service life in harsh industrial environments
- High-strength durability thanks to alloy steel construction and Rockwell C45 hardness, resisting wear and deformation
- Secure, flush installation with headless hex drive design, preventing protrusions and enabling tight spaces
- Reliable fine thread engagement with 1/4"-28 UNF spacing, ensuring accurate positioning and reduced loosening
- Easy installation and removal using a standard 1/8" hex key, streamlining maintenance and adjustments
- Compliance with global standards including ASME B18.3, RoHS 3, and REACH for safe, reliable use worldwide
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address critical challenges in industrial assemblies, such as component slippage and corrosion-induced failure. Its Class 3A UNF fine threads provide superior clamping force and vibration resistance, ideal for precision machinery, automotive systems, and heavy-duty equipment where alignment is paramount. The headless hex drive and flat tip design allow for seamless integration into tight spaces, minimizing obstruction while maximizing grip on shafts or collars. With Rockwell C45 hardness, it withstands high-stress conditions without stripping, ensuring long-term reliability in industrial set screw applications that demand exactitude and endurance.
Specification Summary & Compliance
This set screw adheres to Class 3A thread fit tolerances per UNF standards, ensuring precise engagement and dimensional accuracy. It meets ASME B18.3 specifications for consistent manufacturing quality and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and material restrictions adherence for global industrial use.
