S-92311A357 5/16"-18 x 2 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
- Exceptional holding power through Class 3A thread fit ensuring tight, secure fastening in demanding applications
- High torque transmission with hex drive design allowing maximum tightening force without stripping
- Enhanced durability with Rockwell B80 hardness providing excellent resistance to wear and deformation
- Positive locking action through cup point tip design that bites into materials for secure positioning
- Reliable coarse threading with UNC 5/16"-18 pattern for quick installation and reduced cross-threading risk
- Space-saving headless design enabling flush mounting where clearance is limited
Professional Applications & Engineering Value
This 18-8 stainless steel set screw delivers critical performance in industrial settings where vibration resistance and corrosion protection are paramount. The UNC coarse threads with Class 3A fit provide superior engagement in soft materials and faster assembly compared to fine threads. The cup point tip creates permanent indentation in shafts and collars, preventing rotational slippage under heavy loads. Combined with hex drive functionality and Rockwell B80 hardness, this headless fastener withstands repeated adjustments without compromising structural integrity. Ideal for precision machinery, automotive components, and permanent fixture applications requiring reliable, maintenance-free set screw solutions.
Specification Summary & Compliance
Manufactured to exact ASME B18.3 specifications with 5/16"-18 UNC coarse threads and Class 3A thread fit for precision tolerance. The 2 3/4" length and right-hand thread direction ensure standardized installation across industrial applications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making this set screw suitable for global manufacturing requirements and restricted substance control.
