S-91410A634 3/8"-16 x 2 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
- Exceptional holding power with Rockwell B80 hardness steel construction for superior resistance to deformation under high torque applications
- Secure square head design with external square drive provides maximum torque transmission and prevents stripping during installation
- Precision Class 2A thread fit ensures smooth assembly and reliable engagement with mating components in industrial settings
- Coarse UNC thread pattern enables rapid installation and superior vibration resistance in demanding mechanical applications
- Cup tip configuration creates concentrated contact pressure for permanent positioning of pulleys, gears, and collars
- Full regulatory compliance with ASME B18.6.2 manufacturing standards plus RoHS 3 and REACH environmental regulations
- Right-hand thread direction with standard 3/8"-16 sizing ensures compatibility with existing industrial equipment and replacement parts
Professional Applications & Engineering Value
This 3/8"-16 UNC steel set screw delivers critical engineering solutions for permanent component positioning in industrial machinery. The Rockwell B80 hardness rating provides optimal balance between strength and machinability, preventing thread damage during high-torque installation while maintaining exceptional clamping force. The square head design with external drive addresses common installation challenges by offering superior torque transmission compared to standard hex drives, reducing the risk of tool slippage and fastener damage. Particularly valuable in power transmission systems, these coarse thread set screws with cup tip configuration create permanent, vibration-resistant connections for shafts, collars, and gears in manufacturing equipment, automotive assemblies, and heavy machinery applications where reliable positioning is paramount.
Specification Summary & Compliance
Manufactured to exact inch system dimensions with 2 1/2" length and 3/8"-16 UNC coarse thread specification. Features precision Class 2A thread fit per ASME standards ensuring proper clearance for reliable assembly. Full compliance with ASME B18.6.2 mechanical specifications, RoHS 3 (2015/863/EU) for hazardous substance restriction, and REACH (EC 1907/2006) environmental regulations for industrial use across global markets.
