Starting with 2.5″ .1875″ Wall Stainless Tube we machine these filler necks to legnth in house with a 12 TPI thread pitch.

Caps are made from 6061 Aluminum and are then black, or hard coat anodized.

For production runs we do offer custom engraving.


Interested in learning more about the Caps / Necks? Reach out with the form below!