S-91185A293 8-32 x 1/2" Thumb Screws

Thumb Screws

0773FA00016 Thumb Screws
0773FA00016 Thumb Screws

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

Part No.
Part No. 0773FA00016
Equivalent to mcmaster :
91185A293

Basic Information

System of Measurement Inch

Head Parameters

Head Type Thumb
Thumb Screw Head Shape Round
Round-Head Thumb Screw Profile Low
Head Diameter 1/2"
Head Height 7/32"
Head Texture Knurled
Head Material Acetal Plastic
Head Temperature Range 32° to 180° F

Dimensions

Length 1/2"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A
Threading Fully Threaded

Material & Strength

Material 18-8 Stainless Steel
Hardness Not Rated

Temperature & Environment

REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
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Key Features & Benefits at a Glance

  • Enhanced grip and comfort with knurled Acetal Plastic head for secure manual tightening without tools
  • Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for humid or demanding environments
  • Precise thread engagement with Class 3A fit ensuring reliable fastening and vibration resistance
  • Quick installation and adjustment thanks to the right-hand coarse UNC thread design
  • Durable low-profile head providing clearance in tight spaces while maintaining structural integrity
  • Full threading along the 1/2" length for maximum holding power and versatile positioning
  • Regulatory compliance with RoHS 3 and REACH standards for safe use in various industries

Professional Applications & Engineering Value

This 8-32 UNC Thumb Screw combines the strength of 18-8 Stainless Steel with the user-friendly Acetal Plastic knurled head to address common assembly challenges. The coarse thread and Class 3A thread fit enable rapid installation in equipment panels, electronic enclosures, and machinery guards, reducing assembly time. The low-profile round head minimizes snagging while the plastic head insulates against electrical conductivity and remains comfortable during frequent adjustments. Fully threaded for consistent clamping force, it's engineered for applications requiring tool-free maintenance, such as in prototyping, aerospace ground support, and medical device assemblies where RoHS and REACH compliance is critical.

Specification Summary & Compliance

This thumb screw features a 1/2" length with 8-32 UNC coarse threads and Class 3A thread fit for high precision. The fully threaded design and right-hand thread direction comply with standard industrial practices. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety standards for global supply chains.

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