Thread screw adapter color is Black, knurled finish provides excellent grip, non-slip, deep and without burrs, complete thread, easy to install and stable. Type: 3/8 female to 1/4 male, 1/4 female to 3/8 male, 1/4 female to 1/4 male, 3/8 female to 3/8 male, 3/8 male to 1/4 male,1/4 male to 1/4 male, 3/8 male to 3/8 male (optional).
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