APPLETON ELECTRIC. Range 0.26 in to 0.55 in, Box Connection 1/2 in MNPT, Material – Cord Connector Nickel Plated Brass, External Strain Relief Material No External Strain Relief, Gland Color Code No Code, Body Color – Cord Connector Silver, Number of Cords 1, Style – Connector Straight, Strain Relief Type No External Strain Relief, External Strain Relief Length 1 3/32 in, Length – Box to End of Connector 15/16 in, Insulated No.