One universal nut 5/8 in. 11NC hex head

Fits American angle grinders with 5/8 in. shafts

Universal nut recessed back allows disc to be tightened on different size angle grinders

Can be used to secure any other type of accessory and is much easier to tighten using a 13/16 in. or 21 mm wrench crescent or spanner

Design includes universal hexagonal heads with a flat base

A universal nut allows 2 blades to be tandem mounted on 4.5 in. (115 mm) or 5 in. (125 mm) angle grinders

Only blades with 5/8 in. (16 mm) center hole sizes may be tandem mounted