Metallics Cap screw of dimension 2-Inch x 1/4-Inch Dia, has UNC 1/4-20 thread and is suitable for use in electrical, plumbing, heating and air conditioning industries. It features steel construction and zinc-chromate finish. This Grade 2 screw has hex head of size 0.438 - 0.428-Inch x 0.15 - 0.163-Inch.