S-91410A849 3/4"-10 x 3 1/2" ASME B18.6.2 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 - External square drive design ensures superior torque application without cam-out, ideal for high-stress industrial assemblies.
- Enhanced Durability - Steel construction with Rockwell B80 hardness provides excellent resistance to wear and deformation under heavy loads.
- Secure Fastening - Cup tip design concentrates pressure for reliable component positioning and prevents loosening in vibrating environments.
- Precision Thread Fit - Class 2A UNC coarse threads enable quick installation while maintaining consistent clamping force.
- Industrial Compliance - Meets ASME B18.6.2 specifications for dimensional accuracy and performance in demanding applications.
- Environmental Responsibility - RoHS 3 and REACH compliance ensures safe use across regulated industries without hazardous substances.
- Optimized Grip - 3-1/2" length and 3/4"-10 thread size provide substantial engagement depth for permanent component fixation.
Professional Applications & Engineering Value
This square head set screw delivers critical engineering solutions where vibration resistance and permanent positioning are paramount. The steel construction with Rockwell B80 hardness withstands repeated stress in heavy machinery, while the UNC coarse threads and Class 2A fit prevent cross-threading during high-speed assembly. The external square drive accommodates standard wrenching tools for maximum torque application in confined spaces, making it ideal for shaft collars, gears, and pulleys. The cup tip creates concentrated pressure points that bite into mating surfaces, solving common slippage issues in rotating equipment. These features combine to provide reliable set screw performance in manufacturing, automotive, and industrial maintenance applications where component security is non-negotiable.
Specification Summary & Compliance
Manufactured to ASME B18.6.2 standards with Class 2A thread fit tolerances ensuring precise dimensional accuracy. Features 3/4"-10 UNC coarse threads with right-hand direction and consistent 0.75" thread diameter. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming absence of restricted substances for industrial safety requirements.
