S-94495A245 1/4"-20 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
- Vibration-resistant locking with nylon patch thread locker prevents loosening in high-stress applications
- Superior corrosion protection through black-oxide coating extends service life in demanding environments
- Exceptional mechanical strength with Rockwell C45 hardness maintains integrity under heavy loads
- Precise thread engagement through UNC Class 3A fit ensures reliable fastening without cross-threading
- Temperature-stable performance from -70° to 250°F maintains locking properties across extreme conditions
- Space-saving headless design allows flush mounting where clearance is limited
- Secure installation control with 1/8" hex drive provides positive torque application
Professional Applications & Engineering Value
Engineered for critical industrial applications where vibration-induced loosening compromises assembly integrity, these black-oxide alloy steel set screws deliver reliable performance through advanced material science. The nylon patch thread locker creates consistent friction resistance without compromising the UNC coarse thread engagement, making them ideal for machinery, automotive components, and production equipment subjected to continuous stress. The Rockwell C45 hardness rating ensures the flat tip maintains its form under repeated adjustments, while the headless configuration enables seamless integration in confined spaces. These industrial set screws solve the fundamental challenge of maintaining precise component alignment while withstanding thermal cycling from -70° to 250°F.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with UNC Class 3A thread fit for precision tolerance. The 1/4"-20 coarse thread with 1/2" length and 1/8" hex drive conforms to industrial dimensional standards. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The nylon patch thread locker maintains effectiveness across the specified temperature range while meeting ASTM F912 requirements for consistent performance.
