S-94105A120 5-40 x 1/8" 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 precise, secure fastening in demanding applications
- Superior corrosion resistance provided by black-oxide coating on alloy steel, extending service life in industrial environments
- Optimized torque transmission through 1/16" hex drive design, preventing tool slippage during installation
- Enhanced material durability with Rockwell C45 hardness, maintaining structural integrity under repeated stress
- Secure component positioning using flat tip design that creates maximum surface contact and prevents movement
- Reliable coarse threading with UNC 5-40 specification for quick installation and strong engagement in various materials
- Industry compliance assurance meeting ASME B18.3 standards for consistent quality and performance
Professional Applications & Engineering Value
These 5-40 UNC set screws deliver critical engineering solutions for precision assembly applications where space constraints and vibration resistance are paramount. The headless design allows for flush mounting in tight spaces while the black-oxide alloy steel construction provides essential corrosion protection in industrial environments. The Class 3A thread fit ensures precise engagement with mating components, eliminating play and maintaining alignment in machinery, automotive, and aerospace applications. The flat tip configuration distributes clamping force evenly, preventing damage to shaft surfaces while providing superior resistance to rotational forces. These hex drive set screws are engineered to solve common industrial challenges including component slippage, corrosion-induced failure, and installation inefficiency.
Specification Summary & Compliance
This set screw features precise Class 3A thread fit according to UNC standards with 5-40 thread size and coarse spacing. Manufacturing complies with ASME B18.3 specifications ASTM F912, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (06/10/2022 224 SVHC), meeting international environmental and safety regulations for industrial use.
