Plug - Delrin, 1/4-28 Flat-Bottom Back Catalog number: P-309 Availability: In the manufacturer's stock Price on request - + Recommended JR-55020-5 Fitting, PEEK, one-piece; natural, 10-32, pk/5 Price on request JR-5518-5 PEEK one-piece fingertight fitting, 1/16" OD tubing, 10-32, 5pc/pak Price on request JR-5004-5 Ferrule, PEEK, double 1/16 , 5/PAK Price on request