J.w. Winco, gn708.1 clamping toggle screw assembly, 708.1-m6-55-a-ni, flat tip, stainless steel features: spindle and iso 4035 hex nuts steel type: steel zinc plated blue passivated finish spindle and iso 4035 hex nuts stainless steel type: stainless steel european standard no. 1.4301 (american standard series 304) spindle tip: black neoprene rubber (cr) 85 shore a vulcanized type a – flat spindle tip