S-93580A004 4-40 x 1/4" Steel Press-Fit Studs

Key Features & Benefits at a Glance

• Precision installation with a defined hole diameter tolerance of 0.000" to 0.003" ensures a secure, reliable press-fit in sheet metal applications.
• Enhanced corrosion resistance from zinc-plated steel construction protects against environmental factors, extending component lifespan in industrial settings.
• Full Class 2A thread fit with coarse UNC spacing provides easy assembly and high vibration resistance, reducing the risk of loosening.
• Optimized for thin materials, supporting a minimum material thickness of 0.04", ideal for lightweight and compact electronic or mechanical assemblies.
• Right-hand threading ensures compatibility with standard assembly tools and processes, streamlining production workflows.
• RoHS 3 compliance guarantees adherence to environmental regulations, making these studs suitable for global markets and sensitive applications.
• Pre-matched drill bit size (No. 34) simplifies preparation and installation, minimizing errors and saving valuable assembly time.

Professional Applications & Engineering Value

These 4-40 UNC press-fit studs are engineered from zinc-plated steel to address common challenges in sheet metal assembly, such as maintaining thread integrity under stress and resisting corrosion. The fully threaded design with a Class 2A fit and coarse thread spacing ensures robust performance in high-vibration environments, reducing maintenance needs. By specifying a precise 0.111" hole diameter and 0.04" minimum material thickness, they prevent sheet deformation and provide consistent pull-out strength, making them ideal for electronics enclosures, industrial control panels, and automotive components where reliability and efficiency are critical.

Specification Summary & Compliance

This stud adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is designed for use with a No. 34 drill bit (0.111" hole diameter) and complies with RoHS 3 (2015/863/EU) environmental regulations, ensuring suitability for restricted substance-sensitive applications. Manufactured to precise inch system measurements, it supports reliable performance in press-fit installations.