S-94105A412 1/2"-20 x 7/8" ASME B18.3, ASTM F912 Set Screws
Set Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with black-oxide coating on alloy steel, extending service life in harsh industrial environments
- Maximum holding power achieved through Rockwell C45 hardness, preventing loosening under vibration and load
- Precise thread engagement with Class 3A UNF fine threads ensuring reliable fastening in critical applications
- Easy installation and removal with 1/4" hex drive design, allowing efficient maintenance with standard tools
- Space-saving headless construction ideal for confined assemblies where protruding fasteners aren't feasible
- Flat tip design provides secure positioning without damaging shaft surfaces during clamping operations
- Regulatory compliance assurance meeting ASME B18.3, ASTM F912, RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional performance in demanding industrial applications where vibration resistance and corrosion protection are critical. The Class 3A UNF fine threads maintain precise clamping force in machinery, automotive components, and precision equipment assemblies. The headless design with 1/4" hex drive enables installation in tight spaces while providing sufficient torque transmission. Engineered with Rockwell C45 hardness, these set screws withstand repetitive stress without deformation, making them ideal for permanent fastening solutions in manufacturing, aerospace, and heavy equipment industries. The black-oxide surface treatment significantly enhances corrosion resistance, extending component life in environments exposed to moisture and chemicals.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit for superior dimensional accuracy and 1/2"-20 UNF fine threads ensuring precise engagement. Complies with ASME B18.3 and ASTM F912 specifications for quality assurance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, making them suitable for global industrial distribution and use in regulated industries.
