Square Head Magnetic Plugs Home / Lubrication Devices / Magnetic Plugs / Square Head Magnetic Plugs Product Options Available Options  SKUThreadA. Overall Length (in./mm.)B. Body Length (in./mm.)C. Magnet Projection (in./mm.)D. Head Size (in./mm.)E. Head Depth (in./mm.)Magnet Style & Material Add To List 6650-11/4"-18 NPTF.96 / 24.4.45 / 11.4.23 / 5.8.37 / 9.4.28 / 7.1Neodymium Add To List 6652-23/8"-18 NPTF.80 / 20.3.47 / 11.0.43 / 10.9.34 / 8.6Disc Ceramic V Add To List 6655-11"-11 1/2 NPTF1.52 / 38.6.75 / 19.1.81 / 20.6.52 / 13.2Disc Ceramic I Add To List 6656-11 1/4" - 11 1/2 NPTF1.37 / 34.8.81 / 20.6.94 / 23.9.56 / 14.2Disc Ceramic I Company Overview Innovative solutions and subject matter expertise in airflow and thermal management solutions, turbocharger solutions, and lubrication and venting products.  4601 121st Street Urbandale, IA 50323 United States Phone: 1 (800) 323 3238 Edisonstraat 2 7575 AT, Oldenzaal The Netherlands Phone: 31 (0) 541 584 500 Gits Mfg. is part of CentroMotion, a global manufacturing company specializing in friction products, mechanical power and information systems, and thermal and motion controls. CentroMotion Brands Carlisle Brake & Friction | Elliott Manufacturing | Gits Mfg. | maximatecc | Power-Packer | Power-Packer North America | Weasler