These brass adjusters are an homage to that vintage set. Brass is an excellent choice for threaded bits as it will turn as easily years from now as it does today. In my opinion these are the best looking barrel adjusters you can buy, and I hope they provide you with decades of particularly pleasant cable tension adjustments.
Machined in Portland, OR.
Material: Brass
Threading: M5 x 0.8
Length: 1” OAL
Weight: 5g each including spring
When you get two adjusters they come inside a lasered tin, which you can re-purpose later for beeswax (nature’s loc-tite) or your favorite ointment.
Barrel Adjusters
You can also get the brass M5 nuts separately: