Bordo NPS Bottoming Chrome Alloy Hand Tap - 4256

• Chrome Alloy NPSF Bottoming Hand Tap.
• Used as thread chasers to clean an existing thread.
• They can also be used to create a new female thread in non-ferrous metals and plastics.
• Chrome alloy taps are not suitable for creating precision, safety or critical threads.
• National Pipe Straight Fuel (Dryseal) is a variation of the Dryseal thread.
• It is used for internal threads and an NPTF external thread can be screwed into it to provide both a satisfactory mechanical connection and hydraulic seal.
• A combination of a parallel and tapered thread would not appear to be ideal but it is widely used.
• Many quick disconnect couplers for example have the NPSF thread and are recommended by the manufacturer for use with NPT and NPTF.
• Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.