Plug 1/4" plastic

Plug 1/4" with male thread. Plastic material.
Plug 1/4" with male thread. Plastic material.
Plug 1/4" with male thread. Brass material with nickel plate.
Plug with 8mm hose barb. Brass material with nickel plate.
1/4" female thread with 8mm hose barb. Brass material with nickel plate.
Socket with 1/4" male thread. Plastic with stainless steel ball bearings.
Socket with 1/4" male thread. All nickel plated brass with stainless steel ball bearings and springs. Has auto-lock mechanism.