S-92311A347 7/16"-20 x 1" ASME B18.3 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 corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
- Exceptional thread precision with Class 3A fit ensures tight, secure fastening with minimal backlash in critical assemblies.
- High mechanical strength and durability supported by Rockwell B80 hardness, resisting deformation under load.
- Secure, flush mounting enabled by the headless hex drive design, preventing protrusion in compact spaces.
- Enhanced grip and minimal surface damage from the cup tip, distributing clamping force evenly on shafts or components.
- Reliable fine threading (UNF) offers increased adjustability and vibration resistance compared to coarse threads.
- Broad regulatory compliance including RoHS 3 and REACH, ensuring safety and environmental standards are met for global supply chains.
Professional Applications & Engineering Value
This 7/16"-20 UNF Class 3A set screw is engineered to address common industrial challenges such as component slippage, corrosion-induced failure, and assembly space constraints. Crafted from 18-8 stainless steel, it provides excellent resistance to rust and chemical exposure, making it suitable for applications in machinery, automotive, and marine equipment. The fine UNF thread and Class 3A fit deliver precise tension control and superior holding power in high-vibration environments. The hex headless design with a 7/32" drive allows for easy installation in tight areas, while the cup tip ensures minimal marring on shafts or gears. Ideal for securing collars, pulleys, and other rotating parts, this set screw enhances operational safety and reduces maintenance needs in demanding settings.
Specification Summary & Compliance
This set screw adheres to ASME B18.3 specifications, with a Class 3A thread fit for high precision and a fine thread spacing (UNF). It features a right-hand thread direction, 1" length, and 0.438" thread diameter. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.
