Male Nut, flangeless, PP, 1/4-28, for 1/16'' OD

Couplings, PTFE, UNF ¼” 28G for tubing (1/16" x 1/8")-1,6 x 3,2mm

PEEK one-piece fingertight fitting, 1/16" OD tubing, 10-32, 5pc/pak

Gap Inspection Gauge, 1/4" and 6mm Female Nuts