DIN 985 Nylon Insert Hex Lock Nut Hot Dip Galvanized (ISO-FIT)

ISO-FIT externally threaded fasteners are rolled undersize so that they will accept a go-gauge with tolerance class 6h AFTER galvanizing. These fasteners can be used in any threaded hole WITHOUT having to tap the hole to oversize. The corresponding ISO-FIT nuts, are threaded to a 6H tolerance class AFTER galvanizing so that they fit onto any threaded fastener.

*Not interchangeable with standard North American galvanized fasteners.