S-91185A342 10-24 x 3/8" Thumb Screws

Thumb Screws

0773FA00021 Thumb Screws
0773FA00021 Thumb Screws

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

Part No.
Part No. 0773FA00021
Equivalent to mcmaster :
91185A342

Basic Information

System of Measurement Inch

Head Parameters

Head Type Thumb
Thumb Screw Head Shape Round
Round-Head Thumb Screw Profile Low
Head Diameter 5/8"
Head Height 1/4"
Head Texture Knurled
Head Material Acetal Plastic
Head Temperature Range 32° to 180° F

Dimensions

Length 3/8"

Thread Parameters

Thread Type UNC
Thread Size 10-24
Thread Diameter 0.19"
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
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Key Features & Benefits at a Glance

  • Enhanced grip and torque application with knurled Acetal plastic head for secure manual tightening without tools
  • Superior corrosion resistance provided by 18-8 stainless steel construction for long-lasting performance in various environments
  • Precise thread engagement with Class 3A fit and UNC coarse threads ensuring reliable fastening and vibration resistance
  • Low-profile round head design minimizes protrusion for applications with limited clearance
  • Wide temperature tolerance (32° to 180° F) for stable operation across diverse industrial conditions
  • Full threading along the 3/8" length allows for maximum adjustability and secure holding power
  • Compliance with environmental regulations including RoHS 3 and REACH for safe use in regulated industries

Professional Applications & Engineering Value

This 10-24 UNC thumb screw combines the durability of 18-8 stainless steel with the ergonomic advantages of an Acetal plastic knurled head, making it ideal for frequent adjustments in industrial equipment, electronic enclosures, and machinery panels. The coarse thread design enables quick installation and removal, reducing assembly time while the Class 3A thread fit ensures consistent performance in high-vibration environments. Its low-profile round head and fully threaded body provide secure fastening in tight spaces, addressing common challenges of accessibility and corrosion in maintenance-heavy applications. Engineered for right-hand thread operation, it offers reliable manual control without specialized tools.

Specification Summary & Compliance

This thumb screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured with a 10-24 thread size, 3/8" length, and fully threaded coarse spacing. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring environmental safety and regulatory adherence for industrial use.

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