Light Duty Carpenter 455® Flange Bolting

Light duty is an economical version of stainless steel flange bolting, suitable for applications in which protection from corrosion is required.

The load values listed in the table below are according to the calculated theoretical load curve based on the dimensions and material for each part number.

Part NumberBolt SizeFlat Load
lb
Torque *
ft-lb
FB1-4551/2"194014
FB2-4555/8"299527
FB3-4553/4"420142
FB4-4557/8"538362
FB5-4551"732799
FB6-4551-1/8"8783132
FB7-4551-1/4"11077185
FB8-4551-3/8"12917237
FB9-4551-1/2"14901266
FB10-4551-5/8"17954370
FB11-4551-3/4"20745499
FB12-4551-7/8"24184669
FB13-4552"27852737
FB14-4552-1/4"358031066
FB15-4552-1/2"444481468
FB16-4552-3/4"546101985
FB17-4553"664782588

* Torque values for sizes 1-1/8″ and larger are based on the 8-pitch thread series for flanged piping.