S-92311A348 1/2"-13 x 7/8" 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 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional holding power achieved through Class 3A thread fit precision and coarse thread spacing
- Maximum torque transmission with 1/4" hex drive design for secure installation and removal
- Enhanced grip and anti-loosening thanks to the cup tip design that bites into mating surfaces
- Reliable mechanical strength maintained through Rockwell B80 hardness rating
- Space-saving headless design allows for flush mounting in confined applications
- Industry-standard compliance with ASME B18.3 specifications for guaranteed interchangeability
Professional Applications & Engineering Value
This 1/2"-13 UNC Class 3A hex headless set screw delivers critical performance in demanding mechanical applications where vibration resistance and permanent positioning are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance for outdoor equipment, marine components, and food processing machinery. The coarse thread spacing ensures rapid installation while maintaining superior holding strength in soft materials and metals. The cup tip design creates concentrated point pressure that prevents shaft slippage in pulleys, gears, and collars. Engineered with right-hand threads and precise Class 3A thread fit, this set screw eliminates backlash in high-precision assemblies while the headless configuration enables seamless integration where protruding fasteners are impractical.
Specification Summary & Compliance
This precision set screw features 1/2"-13 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and interchangeability. Manufactured to ASME B18.3 specifications with Rockwell B80 hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Dimensions include 7/8" length with 1/4" hex drive and cup tip configuration.
