S-92695A644 1/4"-20 x 3/16" 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 holding power with Class 3A thread fit for reliable, vibration-resistant fastening in demanding applications.
- Enhanced corrosion resistance from the black-oxide coating on alloy steel, extending service life in industrial environments.
- High-strength durability with Rockwell C45 hardness, ensuring the set screw maintains integrity under heavy loads.
- Easy installation and removal using a standard 1/8" hex drive, reducing assembly time and tool wear.
- Secure positioning with a 118° cone point that digs into surfaces, preventing slippage in machinery and components.
- Broad compatibility with UNC coarse threads and right-hand direction, fitting common industrial standards for versatile use.
- Regulatory compliance with ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.
Professional Applications & Engineering Value
This 1/4"-20 UNC set screw is engineered to address common industrial challenges like component loosening due to vibration and wear. Made from black-oxide alloy steel, it offers excellent resistance to rust and abrasion, making it ideal for machinery, automotive assemblies, and precision equipment where long-term reliability is critical. The Class 3A thread fit and coarse UNC thread spacing provide tight tolerances that minimize backlash, while the 118° cone point ensures firm gripping on shafts and hubs. Its headless design and hex drive allow for flush mounting in confined spaces, reducing the risk of interference and simplifying maintenance in industrial applications.
Specification Summary & Compliance
This set screw adheres to precise Class 3A thread fit standards for inch-based systems, with a thread size of 1/4"-20 UNC and coarse spacing. It meets ASME B18.3 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.
