S-91375A843 3/4"-10 x 2" 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
- Maximum torque transmission with 3/8" hex socket drive for secure tightening in demanding applications
- Superior corrosion resistance through black-oxide coating on alloy steel for extended service life
- Precise thread engagement with Class 3A UNC coarse threads ensuring reliable fastening in industrial assemblies
- Exceptional hardness and durability with Rockwell C45 rating for high-strength performance under load
- Secure locking capability through cup point design that bites into mating surfaces preventing loosening
- Space-saving headless design allowing flush mounting where clearance is limited
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations
Professional Applications & Engineering Value
This Black-Oxide Alloy Steel set screw delivers critical performance in industrial applications where vibration resistance and permanent positioning are paramount. The Rockwell C45 hardness ensures the cup point maintains its biting capability even under repeated stress cycles, while the Class 3A thread fit provides precise engagement in UNC coarse threads for rapid assembly. The hex socket drive accommodates high torque applications without stripping, making it ideal for machinery components, gear assemblies, and precision equipment where headless design is essential for space-constrained environments. The black-oxide surface treatment offers corrosion protection in moderate conditions, extending service life in manufacturing, automotive, and heavy equipment applications.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNC 3/4"-10 coarse threads. The 2" length and 0.75" thread diameter provide standardized dimensions for consistent performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage in regulated industries. The Rockwell C45 hardness rating confirms the material meets rigorous industrial standards for strength and durability.
