Pipe and Drain Plugs American National Standards Institute / American Society of Mechanical Engineers ANSI / ASME B16.14   SQUARE HEAD   HEX SOCKET   SQUARE SOCKET   SLOTTED HEADLESS   SIX LOBE           Pipe Size                   1/8 - 27 X   X       X   X 1/4 - 18 X   X       X   X 3/8 - 18 X   X       X   X 1/2 - 14 X   X       X   X 3/4 - 14 X   X       X   X 1" - 11.5 X   X             1-1/4 - 11.5 X   X   X         1-1/2 - 11.5 X   X   X         2" - 11.5 X   X   X         2-1/2 - 8 X       X         3" - 8 X       X         4" - 8 X       X         X = Currently Produced Available Materials : Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.) Deutsches Institut fur Normunq e.V. DIN / BRITISH DIN 906/3858 and DIN 909/3858   HEX SOCKET DIN 906/3858   INSIDE HEX DIN 909/3858     Pipe Size       1/8 - 28 X   X 1/4 - 19 X   X 3/8 - 19 X   X 1/2 - 14 X   X 3/4 - 14 X   X 1" - 11 X     1-1/4 - 11 X     X = Currently Produced Available Materials: Steel (Low Carbon. Medium Carbon, Alloy). Stainless Steel. Brass. Aluminum (Parts may nol be produced in all Materials noled above.) British Standard Pipe Taper BSPT / BS21 - WHITWORTH   HEX SOCKET STANDARD   HEX SOCKET "GAS"   SQUARE HEAD       Pipe Size           1/8 - 28 X   X   X 1/4 - 19 X   X   X 3/8 - 19 X   X   X 1/2 - 14 X   X   X 3/4 - 14 X   X   X 1" - 11 X   X   X X = Currently Produced Available Materials: Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.) Deutsches Institut fur Normunq e.V. DIN STANDARD METRIC DIN 906 / 158 and DIN 909 / 158   HEX SOCKET DIN 906/158   INSIDE HEX HEAD DIN 909/158     Pipe Size       M 6 x l.0 X     M 8 x l.0 X   X M 10 x l.0 X   X M 12 x l.5 X   X M 14 x l.5 X   X M 16 x l.5 X   X M 18 x l.5 X   X M 20 x l.5 X   X M 22 x l.5 X   X M 24 x l.5 X   X M 26 x l.5 X     M 30 x l.5 X     X = Currently Produced Available Materials: Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.) Japanese Industrial Standard JSA / JIS D2101   SQUARE HEAD   HEX HEAD   HEX SOCKET   HEX SOCKET 3/4T FLUSH         Pipe Size               1/8 - 28 X   X   X   X 1/4 - 19 X   X   X   X 3/8 - 19 X   X   X   X 1/2 - 14 X   X   X   X 3/4 - 14 X       X   X 1" - 11 X       X   X 1-1/4 - 11         X   X X = Currently Produced Available Materials: Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.) Seaway Bolt & Specials Corp 102 FLUSH SEAL American Flush Seal 7/8 Taper     HEX SOCKET 7/8T FLUSH SEAL     Pipe Size     1/16 - 27   X 1/8 - 27   X 1/4 - 18   X 3/8 - 18   X 1/2 - 14   X 3/4 - 14   X 1" - 11.5   X 1-1/4 - 11.5   X 1-1/2 - 11.5   X 2" - 11.5   X X = Currently Produced Available Materials: Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.) Society of Automotive Engineers AMERICAN SAE J531   SQUARE HEAD   HEX HEAD   HEX SOCKET   SQUARE SOCKET   INSIDE HEX HEAD   SLOTTED HEADLESS   SIX LOBE               Pipe Size                           1/16 - 27 X   X   X   X   X   X   X 1/8 - 27 X   X   X   X   X   X   X 1/4 - 18 X   X   X   X   X       X 3/8 - 18 X   X   X   X   X       X 1/2 - 14 X   X   X   X   X       X 3/4 - 14 X   X   X   X   X       X 1" - 11.5 X       X   X             X = Currently Produced Available Materials : Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.) American National Standards Institute / American Society of Mechanical Engineers ANSI / ASME B16.11   SQUARE HEAD   HEX HEAD     Pipe Size       1/8 - 27 X   X 1/4 - 18 X   X 3/8 - 18 X   X 1/2 - 14 X   X 3/4 - 14 X   X 1" - 11.5 X   X 1-1/4 - 11.5 X   X 1-1/2 - 11.5 X   X 2" - 11.5 X   X 2-1/2 - 8 X   X 3" - 8 X   X 4" - 8 X   X X = Currently Produced Available Materials: Steel (Low Carbon, Medium Carbon, Alloy), Stainless Steel, Brass, Aluminum (Parts may not be produced in all Materials noted above.)