This lightweight, non-vented cap features positive grip finger notches that is easy to get a hold of . The 6061-T6 billet aluminum is CNC machined for accuracy with a lightweight, attractive design and features quick-starting coarse threads. Each is standard with a special positive sealing "radial squeeze" Buna O-ring, which also holds the cap secure.
Easy Turn Fill Caps are available in variety of sizes to fit most any
application, big or small. To compliment your color coordination of your
project, the caps are finished off in Pro-Werks Brilliance anodized
colors in your choice of black, red, blue, silver, or beautifully
Billet Aluminum Fill Caps are a Pro-werks specialty.
Proudly made in the USA.