S-95185A390 1/4"-28 Press-Fit Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction for extended service life in harsh environments
• Reliable panel retention with 0.44" head OD and 0.17" head height design preventing rotation during installation
• Precision thread engagement with Class 2B UNF fine threads ensuring consistent, vibration-resistant connections
• Streamlined installation through press-fit technology requiring only standard 11/32" drilling equipment
• Optimized for thin panels with minimum 0.09" thickness compatibility for space-constrained applications
• Environmental compliance assurance meeting RoHS 3 standards for global manufacturing requirements
• Right-hand thread design providing familiar installation direction for efficient assembly operations

Professional Applications & Engineering Value

This zinc-plated steel press fit nut delivers exceptional engineering value in panel fastening applications where space optimization and corrosion resistance are critical. The UNF fine thread configuration (1/4"-28) maintains superior clamping force in vibration-prone environments, while the round head design ensures flush mounting without protrusion concerns. Engineered specifically for thin panel applications starting at 0.09" thickness, this fastener eliminates the need for welding or complex hardware, reducing assembly time and labor costs. The press-fit installation methodology provides permanent, torque-resistant threads in sheet metal, plastics, and composite materials commonly found in electrical enclosures, machinery panels, and automotive assemblies where reliable thread integrity is non-negotiable.

Specification Summary & Compliance

This press fit nut maintains Class 2B thread tolerances per UNF standards with precise 1/4"-28 fine thread spacing and right-hand thread direction. Manufacturing specifications include 0.44" head outer diameter and 0.17" head height dimensions, compatible with standard 11/32" (0.3438") drill bit preparation. The product fully complies with RoHS 3 (2015/863/EU) requirements and carries the PEM® S-0428-2ZI manufacturer part number identification for quality assurance and traceability.