S-90342A114 6-32 x 1/4" Alloy Steel Socket Head Screws with Split Lock Washer

Alloy Steel Socket Head Screws with Split Lock Washer

0042FA00004 Alloy Steel Socket Head Screws with Split Lock Washer
0042FA00004 Alloy Steel Socket Head Screws with Split Lock Washer

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

Part No.
Part No. 0042FA00004
Equivalent to mcmaster :
90342A114

Basic Information

Screw Features With Washer
System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 0.226"
Head Height 0.138"
Socket Head Profile Standard

Dimensions

Length 1/4"

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
Locking Type Lock Washer

Tip & Drive Parameters

Drive Style Hex
Drive Size 7/64"

Washer & Nut

Washer Type Split Lock
Washer Material Black-Oxide Steel
Washer OD 0.204"
Washer Thickness 0.04"

Material & Strength

Material Black-Oxide Alloy Steel
Hardness Rockwell C39
Tensile Strength 180000 psi

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

  • Exceptional tensile strength of 180,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure.
  • Corrosion-resistant black-oxide finish on alloy steel enhances durability and longevity in harsh industrial environments.
  • Integrated split lock washer provides secure, vibration-resistant locking to maintain tightness in dynamic applications.
  • Precise Class 3A thread fit offers superior engagement and consistent clamping force for accurate assembly.
  • Hex socket drive design allows for easy installation and high torque application in confined spaces.
  • Coarse UNC threading enables quick assembly and disassembly, improving efficiency in maintenance and production.
  • Compliance with RoHS 3 and REACH standards ensures environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 6-32 UNC thread socket head cap screw is engineered to address common industrial challenges such as vibration loosening and corrosion. The black-oxide alloy steel construction, combined with a Rockwell C39 hardness, provides excellent resistance to wear and environmental factors, making it ideal for machinery, automotive, and heavy equipment applications. The inclusion of a split lock washer ensures lasting fastener integrity in high-vibration settings, while the coarse thread and Class 3A fit facilitate quick, reliable installations. Its hex drive design supports efficient torque transfer, reducing assembly time and enhancing operational reliability in demanding engineering environments.

Specification Summary & Compliance

This screw features a 6-32 UNC coarse thread with Class 3A thread fit for precise tolerance, ensuring consistent performance. It is manufactured from alloy steel with a black-oxide surface treatment and includes a split lock washer for enhanced security. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.

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