- SAE 1012 Seamless Tubing Equivalent(cold worked for added strength)
- Zinc Plated
- Black Dichromate
- Knurled on one end of the non-swaged area
5/8 inch tubes are 7/8 inch OD with .079 inch wall thickness.
Threads are 5/8 UNF-2B left and right hand.
7/8 inch tubes are 1 inch OD with .079 inch wall thickness.
Threads are 3/4 UNF-2B left and right hand.