S-92785A507 4-40 x 3/4" 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
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Maximum holding power achieved through 90° cone point design that bites securely into mating surfaces
- Precise thread engagement with Class 3A thread fit ensuring reliable, vibration-resistant fastening
- Easy installation and removal with hex drive design requiring minimal clearance space
- Enhanced durability from Rockwell B80 hardness maintaining performance under repeated use
- Industry-standard compliance meeting ASME B18.3 specifications for consistent quality
- Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing
Professional Applications & Engineering Value
This 4-40 UNC set screw delivers exceptional engineering value in precision assembly applications where space constraints and vibration resistance are critical concerns. The headless design with hex drive allows installation in confined areas while maintaining high torque capability. Manufactured from 18-8 stainless steel, it provides excellent corrosion resistance for demanding environments including marine, food processing, and outdoor equipment. The 90° cone point creates permanent seating in shafts, collars, and pulleys, preventing component slippage under dynamic loads. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of cross-threading and providing consistent clamping force in automated assembly operations.
Specification Summary & Compliance
This precision fastener features 4-40 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy. The 3/4" length and 0.050" hex drive provide standardized installation compatibility. Manufacturing complies with ASME B18.3 specifications for dimensional consistency and performance reliability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substance restrictions.
