A big THANK YOU to Rick Bin,....for helping to untangle the knot that posting a scad of pics this AM tied.
SE Az. Kompooter Klutz strikes again.
Those Nipples are threaded 12-28, which is a REALLY nice feature if one anticipates playing on this side of the pond, with Standard ASME dimensions.
TOW's part # is PRA-S
Nipple, 12-28 thread, for Ruger Old Army revolver, #11 CCI cap, stainless steel, for Ruger hex socket or Track's #NW-130 wrench
Cone length: 0.270"
Thread journal length: 0.260"
Overall length: 0.530"
Diameter of base: 0.285"
The "Metric" stuff / sizing for percussion nipples is just about strategised to drive a sober Mechanic to drink.
....crap, think what that could do to this humble scribe.
GTC