S-98704A425 10-24 x 5/8" Thumb Screws

Thumb Screws

0776FA00021 Thumb Screws
0776FA00021 Thumb Screws

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

Part No.
Part No. 0776FA00021
Equivalent to mcmaster :
98704A425

Basic Information

Color Black
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 5/8"

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

Tip & Drive Parameters

Drive Style Hex
Drive Size 5/32"

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 comfort with a knurled black acetal plastic head for easy hand-tightening without tools in various industrial settings.
  • Superior corrosion resistance provided by 18-8 stainless steel construction, ensuring long-term reliability in humid or demanding environments.
  • Precise and secure fastening with Class 3A thread fit and coarse UNC threads, reducing cross-threading risks and improving assembly efficiency.
  • Versatile tool compatibility through the 5/32" hex drive, allowing for additional tightening with standard tools when needed.
  • Durability in moderate temperatures with a head temperature range of 32° to 180° F, suitable for many electronic and machinery applications.
  • Full threading along the 5/8" length for consistent holding power and adjustable positioning in assemblies.
  • Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries and global markets.

Professional Applications & Engineering Value

This 10-24 UNC thumb screw combines the strength of 18-8 stainless steel with the ergonomic advantages of a black acetal plastic knurled head, addressing common issues in industrial fastening. The low-profile round head and coarse thread design facilitate quick installation and removal in tight spaces, such as electronic enclosures, panel covers, and machinery access points. The Class 3A thread fit ensures minimal play and vibration resistance, reducing maintenance needs. Ideal for applications requiring frequent adjustments, this thumb screw fastener offers a reliable, RoHS and REACH compliant solution that enhances productivity while meeting stringent industry regulations.

Specification Summary & Compliance

This thumb screw features a 10-24 UNC thread size with Class 3A thread fit for precise dimensional accuracy, and a fully threaded 5/8" length. It adheres to common inch-system standards and is manufactured with a right-hand thread direction and coarse thread spacing. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it meets environmental and safety requirements for industrial use.

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