1″ x 11 BSPF Chrome Die Nut Manufactures part number 4848-1 British Standard Pipe (BSPF). Die nuts are commonly used when a button die is not suited due to work space restrictions and / or on site thread accessibility. They can be used as thread chasers to clean an existing thread. They can also be used to create a new male thread on non-ferrous metals and plastics. Chrome alloy dies are not suitable for creating precision, safety or critical threads. BSPF (G Series) is a pipe thread which is used mainly for mechanical coupling. The angle of thread is mainly 55° however for the US method some threads have a 60° angle. It is specified according to JIS and ISO R228.
