S-91375A517 1"-14 x 1" 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
- Superior corrosion resistance with black-oxide coating protecting against rust in demanding industrial environments
- Exceptional thread precision with Class 3A fit ensuring tight, secure fastening without cross-threading
- High-strength performance from alloy steel construction with Rockwell C45 hardness for reliable load-bearing capacity
- Easy installation and removal with 9/16" hex drive providing positive torque transmission and tool engagement
- Secure component positioning through cup tip design that creates positive locking action on shafts and collars
- Space-saving headless design allowing flush mounting where clearance is limited
- Fine thread configuration offering improved adjustment precision and vibration resistance
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial applications requiring precision fastening and reliable component positioning. The combination of Class 3A thread fit and fine 1"-14 thread ensures exact alignment and superior vibration resistance in machinery, automotive assemblies, and power transmission systems. The headless design with cup tip provides maximum holding power on shafts, pulleys, and gears while maintaining a low-profile installation. Engineered for heavy-duty applications, this set screw maintains structural integrity under significant mechanical stress, making it ideal for permanent installations where disassembly is infrequent. The black-oxide surface treatment extends service life by resisting corrosion in challenging operating environments.
Specification Summary & Compliance
Manufactured to exacting ASME B18.3 specifications and ASTM F912 standards, this set screw features Class 3A thread fit for precision tolerance and UNS fine thread form with 1"-14 thread size. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. With Rockwell C45 hardness and right-hand thread direction, this fastener delivers consistent performance in industrial applications requiring reliable, long-term fastening solutions.
