973567 by Midland | Nipple Assortment of 66 Pieces | 1/2" Diameter | Size Range: Close Length to 6" Length | Black SteelFeatures: All pipe is hydrostatic tested. Black steel protects against oxidation with the varnish coating. Temp Rating: 200F to 150F Cutting Procedure: All pipe is roller cut. A visual inspection of seams, excessive galvanizing, mid welds, poor galvanizing, bends, roundness, under and over weight of the pipe is made at the time it is cut. This is done for every length of pipe. Pipe lengths are cut to a tolerance of + or 1 16" of the actual length.