200 PCS PG 7 BLCK COLOR Black Nylon Waterproof Cable Gland Nylon Lock-Nut Included Cable Range: 3-6.5mm / 0.11" - 0.25" Ratchet type lock-nut ensures a firm grip on the cable Designed & manufactured to the highest quality Thread Diameter: 12mm / 1/2" IP Rating: 68 Waterproof -40°F to 239°F