... Hexagon socket head cap screws 1. material:alloy steel , carbon steel 2.finish:balck, zinc plated, yellow zinc plated, plain Hexagon socket ... head cap screws 1. material:alloy steel , carbon steel , ... 9\4.83.finish:balck , zinc plated , yellow zinc plated , plain ,4.packing : bulk in carton , box packing , specail quaitity ...