Upchurch Scientific Tefzel ETFE Union Assembly for 1/16 inch OD Tubing, 0.93 µL, 1/4-28 Flat-Bottom, 0.75 mm Thru-hole, Single - P-710 - £22.17 : UVISON.com
Idex Port Plug, Standard Knurl, Black Acetal, 1/4-28 Flat-Bottom; 1/EA from Cole-Parmer United Kingdom
1/4-28 Female to 1/4-28 Male Flat-Bottom Adapter– Darwin Microfluidics
Flangeless Fitting Natural, PEEK, 1/4-28 Flat-Bottom, for 1/16" OD
Super Flangeless™ Ferrules, 1/4-28 Flat Bottom
MINSTAC - 1/4-28 Flat Bottom
Super Flangeless™ One-Piece Fitting, 1/4-28 Flat-Bottom, for 1/16" OD
Idex® Low-Pressure Unions with 1/4-28 Flat-Bottom Configuration from Cole-Parmer Germany