S-94025A149 5/16"-18 x 3/8" ASME B18.6.2 Set Screws

Set Screws

0618FA00016 Set Screws
0618FA00016 Set Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0618FA00016
Equivalent to mcmaster :
94025A149

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 3/8"

Thread Parameters

Thread Type UNC
Thread Size 5/16"-18
Thread Diameter 0.313"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A

Tip & Drive Parameters

Tip Type Cup
Drive Style Slotted

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B80

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.6.2
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
  • Exceptional holding power provided by the cup point tip design, which bites into the shaft material to prevent component slippage.
  • li>Reliable and secure fastening ensured by the coarse UNC thread and Class 2A fit, offering excellent engagement and vibration resistance.
  • Simplified installation and removal with a standard slotted drive, compatible with common hand tools for easy maintenance.
  • High mechanical strength with a Rockwell B80 hardness, providing durability and resistance to wear under load.
  • Space-saving headless design allows for flush mounting in applications where protruding fastener heads are not feasible.
  • Guaranteed quality and safety through compliance with ASME B18.6.2, RoHS 3, and REACH regulations.

Professional Applications & Engineering Value

This 5/16"-18 UNC set screw is engineered to solve critical challenges in industrial assembly and motion control systems. The headless design and cup point are specifically chosen to provide a secure, flush-mount fastening solution for pulleys, gears, and collars on shafts, preventing axial movement even under high torque and vibrational stresses. Manufactured from 18-8 Stainless Steel, it delivers excellent resistance to rust and corrosion, making it a dependable choice for applications in manufacturing, automotive, and outdoor equipment. The coarse thread ensures quick installation and robust performance, providing engineers with a reliable component that maintains joint integrity and reduces maintenance downtime.

Specification Summary & Compliance

This set screw features a 5/16"-18 UNC coarse thread with a Class 2A thread fit for standard tolerance and reliable assembly. The product is manufactured in compliance with the ASME B18.6.2 standard and is confirmed to be RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring it meets stringent environmental and safety regulations for global industrial use.

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