At DPI, we manufacture our subs utilizing 4140 Q&T Alloy Bar. Our heat treatment allows us to maintain a 28-32 RC hardness. We offer our subs with flats, lugs, float bores, fishing necks, dual thread, and in flanged configurations.
|Pin x Box with Flats||Pin x Pin Extended Length|
|Box x Box with Flats||Pin x Box Crossover Sub|
|Pin x Pin Compact|