S-91375A072 2-56 x 1/16" 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 corrosion resistance with black-oxide finish on alloy steel for extended service life in harsh environments
- Maximum holding power ensured by Class 3A thread fit precision and Rockwell C45 hardness
- Secure component positioning with cup point design that bites into mating surfaces
- Space-saving installation through headless design ideal for confined spaces
- High-torque application capability with hex drive design for reliable fastening
- Industry-standard compatibility with UNC coarse threads for easy replacement and assembly
- Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards
Professional Applications & Engineering Value
This 2-56 UNC set screw delivers exceptional engineering value in precision assembly applications where space constraints and vibration resistance are critical concerns. The black-oxide alloy steel construction provides superior corrosion protection while maintaining the Rockwell C45 hardness necessary for repeated adjustments without deformation. The cup point design creates positive locking action by embedding into shaft materials, preventing rotational slippage in power transmission components, machinery collars, and precision instruments. The headless configuration with hex drive allows flush mounting in tight clearances while enabling high torque application. These set screws are particularly valuable in manufacturing equipment, automotive assemblies, and electronic enclosures where Class 3A thread fit ensures precise engagement and reliable performance under dynamic loads.
Specification Summary & Compliance
This precision fastener features 2-56 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and engagement. Manufactured to ASME B18.3 specifications with Rockwell C45 hardness rating, the screw delivers consistent mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, ensuring environmental responsibility and workplace safety standards are met for industrial applications worldwide.
