Prime Industrial Components manufactures brass knurling inserts with different outer surfaces. Prime Industrial Components also offers Straight Hole, Tri Slotted Inserts, Blind [Closed bottom], Collar Inserts and Press in. Brass knurling inserts with different outer surfaces are used in plastics industries, communication equipments, automotive industries, electrical junction box and sanitary fittings. Brass knurling inserts with different outer surfaces include straight, diamond, crossed outer surfaces. Straight, diamond and crossed outer surfaces provide better grips in plastic molding. The inserts are available in sizes from 2 mm to 50 mm diameter. Finishes like Brass natural, Electro-Tinned and Nickel plating are available in these inserts.