Sold in quantities of 100 each  All Arc Studs and Pins are reduced approximately 1/8" in length after welding for diameters up to 1/2" weld base diameter and approximately 3/16" for 5/8" weld base diameter studs and larger.  All Arc Studs are rolled to UNC-2A for male threads:  UNC-2B for Female.   Studs of 3/16" dia. and larger are loaded with solid flux which is accurately positioned to .010 of center Arc Ferrules are provided for all Arc Studs and Pins as an integral component of the specific fastener required.