Tap tails & thread sizes?

[Big_Nige]

I'm trying to get some new tap tails for a tap on my boat which has hot/cold inlets, and a mixed outlet.

The inlets have O-ring flexible fittings that measure 7.9mm OD, and seem to have a pitch of 1mm - so I'm guessing this is 8mm/1. Has anyone seen tails like this? Ideally I'd like the tails to have 1/2" BSP M the other end.

The outlet has the same thread on the tap body, but the other end (that fits to a shower hose) is very odd. Pitch is 1mm again, but the OD is 15mm. I can't use a standard shower hose as it has to pass through the tap body. Any thoughts?

Here's a photo, with a 10mm tail in the middle:

Nige[/img]

 

[ChrisR]

3/8 bsp is 19 tpi 0.656" (16.66mm) od

look at screwfix
27936 Flexible Tap Tails Pair 10mm x 15mm x 300mm

91351 Flexible Tap Tails Pair 12mm x 15mm x 300mm



BSP: you'll have to sort the tabs!
Nominal Size
(inches) T P I Pitch
(inches) Major Diameter
(inches) Minor Diameter
(inches) Tapping Drill Size
1/16 28 0.0357 0.304 0.2583 Letter drill G
(6.6 mm)
1/8 28 0.0357 0.383 0.3372 11/32 inch
(8.73 mm)
1/4 19 0.0526 0.518 0.4546 11.8 mm
(0.4646 inch)
3/8 19 0.0526 0.656 0.5886 15.25 mm
(0.6004 inch)
1/2 14 0.0714 0.825 0.7336 3/4 inch
(19.05 mm)

any good?

 

[Big_Nige]

Sorry, I'm not sure that BSP info helps me, the threads are metric.