... head + hexagen screw c) Material: stainless steel d) Good quality and fast delivery 1. Name: ball head dome screw set2. Feature: ball head screw, ball set screw, dome head ... parts by different materials, including alloy, stainless steel, copper, aluminium, etc.Our machinesCNC ... desginball head screw , ball set screw , dome head screwsOther hardware deisgns stainless steel ball head dome screw set