Plug - Delrin, 1/4-28 Flat-Bottom Back Catalog number: P-309 Availability: In the manufacturer's stock Price on request - + Recommended JR-5580-5 Nut, PEEK, hand-tight, 10-32, 5/PAK Price on request JR-5518-5 PEEK one-piece fingertight fitting, 1/16" OD tubing, 10-32, 5pc/pak Price on request F-120X One-Piece Fingertight 10-32, 1/16'' OD, natural, pk/10 Price on request