S-95235A542 5/16"-18 x 1/2" 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
- Superior vibration resistance with nylon patch thread locker that maintains locking performance up to 250°F
- Exceptional thread precision with Class 3A external thread fit ensuring reliable engagement and reduced assembly issues
- High-strength durability from alloy steel construction with Rockwell C45 hardness for long-term load-bearing applications
- Secure installation and removal with 5/32" hex drive design preventing tool slippage and damage
- Enhanced gripping capability thanks to the extended tip design that increases surface contact and holding power
- Broad industrial compatibility with 5/16"-18 UNC coarse threads meeting common equipment and machinery standards
- Headless configuration allowing flush mounting in confined spaces without protrusion
Professional Applications & Engineering Value
This alloy steel set screw is engineered to address critical challenges in industrial assembly, where vibration-induced loosening and space constraints are common. The nylon patch locking feature provides consistent resistance to dynamic loads, making it ideal for motors, gearboxes, and rotating machinery. Its Class 3A thread fit and UNC coarse threads ensure quick installation and high clamp force retention, reducing maintenance downtime. The extended tip improves grip on shafts and collars, while the headless, hex drive design facilitates use in tight assemblies. Complying with ASME B18.3, it delivers reliable performance in automotive, aerospace, and heavy equipment applications.
Specification Summary & Compliance
This set screw features a 5/16"-18 UNC coarse thread with Class 3A external thread fit for precision alignment. It meets ASME B18.3 specifications (ASTM F912) and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards. Dimensions include a length of 1/2", tip length of 0.082", and tip diameter of 0.203", with tolerances as specified for consistent quality.
