S-90778A022 2-56 x 1/4" 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
- Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
- Superior torque transmission through the hex drive design, preventing tool slippage during installation
- Maximum holding power from the 90° cone point that bites securely into mating surfaces
- Precise thread engagement with Class 3A fit, ensuring reliable fastening in critical applications
- Durable mechanical performance with Rockwell B80 hardness for long-term reliability
- Broad industrial compatibility with UNC coarse threads for quick assembly and disassembly
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations
Professional Applications & Engineering Value
This 2-56 UNC thread set screw delivers critical engineering solutions where space constraints and corrosion resistance are paramount. The 316 stainless steel construction provides superior protection against chemical degradation and atmospheric corrosion, making it ideal for marine, chemical processing, and food industry applications. The hex headless design with 0.035" drive size enables high-torque installation in confined spaces, while the cone point creates permanent seating and prevents component rotation in precision assemblies. The Class 3A thread fit ensures consistent performance in vibration-prone environments, maintaining secure fastening in machinery, electronic enclosures, and precision instruments where reliability is non-negotiable.
Specification Summary & Compliance
This set screw features precision 2-56 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. The 1/4" length and 90° cone point angle provide optimal engagement characteristics. Manufacturing complies with ASME B18.3 specifications for dimensional standards and performance requirements. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substance restrictions.
