These baluns and ununs can be used for impedance matching and also as End Fed halfwave antenna matching transformers to 50 or 75 ohm coax cable.

Side or Top Stud Kit - 1/4-20 Stainless Steel

Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Enclosure Boxes and Hardware

Product Details

Stainless Stud Kit: Side Stud-1/4-1 1/2" (1), 1/4" x 7/16 nut (1),
1/4" x 5/8" washer (4), 1/4" Ring Solder Lug (1), 1/4" Wing Nut (1),
1/4" Star Washer (2). All Stainless Steel

Same parts we use on all of our baluns, ununs, & chokes.