S-93580A549 4-40 x 7/8" Steel Press-Fit Studs

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments
• Precision installation in 0.111" diameter holes with tight tolerance control (0.000" to 0.003") for consistent, secure press-fit applications
• Full 4-40 UNC threading with Class 2A thread fit provides reliable engagement and vibration resistance in coarse thread applications
• Right-hand threading design enables standard installation procedures and compatibility with common assembly tools
• Optimized 7/8" length accommodates material thicknesses from 0.04" minimum while maintaining proper edge distance requirements
• RoHS 3 compliance ensures environmental regulatory adherence for global manufacturing applications
• PEM® engineered quality delivers consistent performance and dimensional accuracy for repetitive assembly operations

Professional Applications & Engineering Value

These 4-40 UNC press-fit studs solve critical challenges in sheet metal assembly where traditional fastening methods prove inadequate. The zinc-plated steel construction provides essential corrosion protection while maintaining the mechanical strength required for industrial applications. The fully threaded design with Class 2A thread fit ensures maximum engagement strength and vibration resistance, crucial for equipment subjected to dynamic loads. Engineered for precision installation in 0.111" diameter holes, these studs eliminate the need for additional locking mechanisms while providing permanent, reliable threads in thin materials. The right-hand coarse thread spacing facilitates quick assembly and disassembly for maintenance while maintaining structural integrity in electronic enclosures, machinery panels, and automotive components where space constraints demand compact, high-strength fastening solutions.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit per UNC specifications, ensuring compatibility with standard 4-40 internal threads. The studs feature full threading along 51/64" of the 7/8" length and are designed for installation in 0.111" diameter holes with controlled interference fit. Compliance includes RoHS 3 (2015/863/EU) environmental standards, making them suitable for global manufacturing applications requiring hazardous substance restriction adherence. The PEM® FH-440-14 part number guarantees consistent quality and performance per manufacturer specifications for press-fit stud applications.