Forge solid four-angle plug head casting four-angle plug head casting hexagonal wire plug 1/8 DN6 3.3 1/4 DN8 3.3 1.65 1.98 3/8 DN10 3.3 1.65 1.98 1/2 DN15 3.85 1.76 2.20 3/4 DN20 6.05 2.42 3.30 1 inch DN25 9.9 3.30 4.73 1.2 inch DN32 13.2 4.95 7.15 1.5 inch DN40 18.7 The 4-inch DN100 47.30 plug, also known as plug head, is made of outer wire at one end and four corners or hexagon corners at the other end for easy fastening of spanner. Thread is connected to the end of water pipe to block the pipe which is not commonly used. Surface treatment: steel tube primary color, polishing, electroplating, sanitation grade, according to different customer requirements can be used in different surface treatment; Main use: food, beverage, cosmetics, industry, chemical industry, machinery and other kinds of pipe connection, connection firm, good sealing, easy to use. Connection mode: thread, different connection mode can be adopted according to different customer requirements.