S-90778A019 2-56 x 3/16" 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 with 316 stainless steel construction for extended service life in harsh environments
- Precise thread engagement through Class 3A fit ensures secure fastening with minimal backlash
- High-strength performance maintained by Rockwell B80 hardness for reliable load-bearing capacity
- Secure anti-loosening grip provided by 90° cone point design that bites into mating surfaces
- Space-saving installation enabled by headless design with compact hex drive for confined applications
- Quick assembly efficiency through coarse UNC threads that reduce installation time
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations
Professional Applications & Engineering Value
This 316 stainless steel set screw delivers exceptional value in demanding industrial applications where corrosion resistance and precise positioning are critical. The Class 3A thread fit provides superior dimensional accuracy for secure fastening in precision equipment, while the 90° cone point creates permanent seating in shafts, collars, and pulleys to prevent rotational slippage. The headless hex drive design allows flush mounting in space-constrained assemblies, making it ideal for machinery, automotive components, and electronic enclosures. Manufactured from marine-grade 316 stainless steel, it withstands corrosive environments including chemical processing, marine applications, and outdoor equipment where standard fasteners would fail prematurely.
Specification Summary & Compliance
This set screw features precision 2-56 UNC coarse threads with Class 3A fit tolerance for exacting dimensional requirements. The 0.086" thread diameter and 3/16" length provide consistent performance across applications. Manufacturing complies with ASME B18.3 specifications for dimensional standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring safe use in regulated industries worldwide.
