1/4" / 6.35mm connector professional,gold plated 6.35mm mono/stereo plug 1/4" / 6.35mm connector screw style material: brass (ROHS)for the cable of size 4mm-12mmOur ... ,phone plug / connector, banana plug, binding post, 3.5mm plug, 6.35mm / 1/4'' mmplug / connector , jack plug for 20 years. Our products ... in European andAmerican market as well as Japan and Korea. 1/4" / 6.35mm connector