Captive knurled screw 47/4C

steelstainless steelfastening

Southco 47 Class captive screws (and the corresponding color-coded "Prism" 4C Class captive screws), offer hundreds of permutations of installation and tool-actuation styles for mounting doors, panels, and other hardware components in limited-space applications. As one of the most popular Southco fastener styles, these versatile captive screws have evolved to provide numerous features to satisfy unique fastening hardware application needs: Standard Phillips and Torx® recesses as well as combination recesses available Screw head doubles as knob for hand actuation Stylized knob for hand actuation, and ratchet-mechanism or smooth knobs for restricted access Spring ejected design retracts threads when not engaged Heat-treated steel screw provides superior torque strength "Prism" colored fasteners enable you to coordinate hardware to your design scheme or to differentiate access points through color Self-clinching and flare-in installation styles Surface Mount Technology (SMT) installation style enables hardware to be attached during reflow process Stainless steel materials and special finishes available for added corrosion resistance Plating options to meet aesthetic and application requirements Different materials available to suit strength requirements Extended length option for non-standard panel designs and sheet metal thicknesses Restricted-Access Series and smooth-knob options help to meet UL-1950, IEC-950, and EN-60950 standards