S-95289A414 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
- Exceptional holding power with Class 3A thread fit for secure, vibration-resistant fastening in demanding applications.
- Superior corrosion resistance and wear provided by the Black Oxide finish on Alloy Steel, extending service life.
- High-strength durability backed by a Rockwell C45 hardness rating, preventing deformation under high stress.
- Easy and secure installation with a 5/32" Hex Drive, allowing for high torque application without slippage.
- Enhanced grip and positioning from the extended tip design, which bites into the mating surface for a more permanent set.
- Reliable coarse (UNC) threading for faster installation and reduced cross-threading risk in industrial assemblies.
- Broad industry compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, global use.
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw is engineered to solve critical challenges in machinery and component assembly. The Black Oxide Alloy Steel construction provides a robust barrier against rust and abrasion, essential for environments with exposure to moisture or particulates. Its headless design and extended tip ensure a flush, unobtrusive fit while maximizing contact and grip on shafts, collars, and gears, preventing axial movement under high rotational forces. The coarse UNC thread and Class 3A fit offer superior holding strength and resistance to vibrational loosening, making it an ideal, reliable choice for permanent settings in automotive, aerospace, and heavy equipment manufacturing where disassembly is not frequently required.
Specification Summary & Compliance
This set screw adheres to precise dimensional standards, including a Class 3A thread fit for high precision and a 1/2" length. It is manufactured in compliance with the ASME B18.3 specification. The product is also verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and suitable for use in regulated markets.
