S-92785A114 4-40 x 3/16" 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, ensuring long-term reliability in harsh environments
- Exceptional holding power achieved through Class 3A thread fit for precise, secure fastening in demanding applications
- Easy installation and removal with hex drive design requiring only 0.050" tool access in confined spaces
- Enhanced grip and alignment from the 90° cone point that digs into mating surfaces to prevent component slippage
- Optimized for high-strength applications with Rockwell B80 hardness providing excellent durability under stress
- Reliable coarse thread engagement using UNC thread spacing for quick assembly and reduced cross-threading risk
- Headless design advantage allowing flush mounting where protruding fasteners are not feasible
Professional Applications & Engineering Value
This 4-40 UNC set screw delivers critical engineering solutions where space constraints and corrosion resistance are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making it ideal for machinery, electronics, and marine applications. The hex drive design ensures maximum torque transmission without stripping, while the cone point with 90° angle creates positive locking action on shafts and collars. The Class 3A thread fit guarantees precise tolerances for vibration-resistant assemblies, and the headless configuration enables use in recessed locations where clearance is limited. These industrial set screws maintain performance in automated equipment, precision instruments, and permanent installations requiring reliable component positioning.
Specification Summary & Compliance
This fastener maintains Class 3A thread fit precision with UNC coarse thread spacing, manufactured to ASME B18.3 specifications for dimensional accuracy. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for industrial use.
