S-90058A151 6-32 x 3/4" Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

0218FA00003 Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws
0218FA00003 Tamper-Resistant Tri-Groove-Drive Steel Round Head Screws

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

Part No.
Part No. 0218FA00003
Equivalent to mcmaster :
90058A151

Basic Information

System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.26"
Head Height 0.12"
Rounded Head Profile High
Rounded Head Style Round

Dimensions

Length 3/4"

Thread Parameters

Thread Type UNC
Thread Size 6-32
Thread Diameter 0.138"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 3A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Tri-Groove
Drive Size No. 6

Material & Strength

Material Zinc-Plated Steel
Hardness Rockwell C28
Tensile Strength 80000 psi
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
  • Superior thread engagement and holding power due to Class 3A thread fit, providing precise, vibration-resistant fastening.
  • High tensile strength of 80,000 psi and Rockwell C28 hardness for reliable performance under heavy loads and stress.
  • Efficient installation and reduced cam-out with the Tri-Groove drive, allowing for faster assembly and minimal tool slippage.
  • Versatile coarse UNC threading enables quick installation and excellent performance in a wide range of materials.
  • Fully threaded design ensures consistent grip along the entire 3/4" length, maximizing connection integrity.
  • Rounded head profile offers a smooth, finished appearance and reduces the risk of snagging or injury.

Professional Applications & Engineering Value

This 6-32 UNC coarse thread screw is engineered with zinc-plated steel to combat corrosion in demanding settings like assembly lines, machinery, and outdoor equipment. The Class 3A thread fit and fully threaded design deliver tight, secure connections that resist loosening from vibrations, a common issue in industrial applications. With a Tri-Groove drive, installers benefit from reduced cam-out and faster drive times, enhancing productivity. Its high-strength build (80,000 psi tensile strength) ensures durability in structural fastening, making it ideal for industrial screws used in metal, plastic, and wood assemblies where reliability is critical.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It features a right-hand thread direction, coarse thread spacing, and a length of 3/4". Manufactured from zinc-plated steel, it meets general industry specifications for hardness (Rockwell C28) and tensile strength (80,000 psi). The product complies with common regulatory requirements such as RoHS and REACH, ensuring safe and environmentally conscious use in various industrial applications.

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