Magnetic plugs are a small investment that can help to prevent damage and wear in engines and gearboxes. Use them to replace standard oil gallery plugs and drain plugs in oil tanks, cooling systems and transmissions. They provide an easy way to check for unusual wear which may precede a failure.
This steel plug has 1"-18 UNS* straight threads and requires a sealing washer such as our Stat-O-Seals, Part No. 3245-1.00 (sold separately).
* UNS is a recognized but unusual thread pitch. More common thread pitches in this size are 1"-8 UNC (coarse), 1"-12 UNF (fine), and 1"-20 UNEF (extra-fine). Be sure to double-check your thread pitch before ordering.