S-90548A155 M4 x 7.2 mm Captive Panel Screws

Key Features & Benefits at a Glance

• Enhanced grip and tool-free operation with knurled thumb head design for quick manual adjustments in tight spaces
• Corrosion-resistant assembly using 400 Series Stainless Steel threads that withstand harsh industrial environments
• Durable, scratch-resistant finish from black powder-coated aluminum head maintaining professional appearance
• Optimized panel retention with precise M4x0.7 coarse threads ensuring secure fastening in 1-1.6mm thick panels
• Perfect fit for standard enclosures designed specifically for 6.4mm panel holes eliminating installation issues
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements
• Right-hand coarse threading providing faster installation and higher resistance to vibration loosening

Professional Applications & Engineering Value

This M4 thumb screw combines the lightweight durability of powder-coated aluminum with the corrosion resistance of 400 Series Stainless Steel to solve critical assembly challenges in electronic enclosures, industrial control panels, and telecommunications equipment. The knurled head texture ensures positive grip even with gloved hands, while the metric coarse threading (M4x0.7mm) prevents cross-threading during repeated panel maintenance cycles. Engineered specifically for captive panel applications with 6.4mm mounting holes, this hardware eliminates lost screws in field service scenarios and maintains consistent clamping force across 1-1.6mm panel thickness variations. The black powder-coated finish provides both aesthetic consistency with modern equipment and additional protection against environmental exposure.

Specification Summary & Compliance

This metric thumb screw features M4x0.7mm coarse threads with standard right-hand thread direction and ISO metric tolerances. The assembly combines a 13mm diameter knurled aluminum head with 400 Series Stainless Steel threaded components. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global electronics and industrial equipment markets. Dimensional specifications include 7.2mm length and 11.3mm head height for consistent performance in captive panel applications.