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Heavy Hex Nuts

 
             
Zinc nuts will not work with galvanized bolts due to the thickness of the galvanized coating.  
Galvanized nuts must be used with galvanized bolts, zinc nuts must be used with zinc bolts.

Select a Material & Finish
Grade A is comparable to grade 2, Zinc plating provides moderate protection against corrosion.
Low carbon steel. Plain finish is ideal for painting and welding applications.
Hot dipped galvanized fasteners are much more corrosion resistant than other types of finishes. Because of the thickness of the coating, galvanized nuts can only be used with galvanized bolts.
Hot Dipped Galvanized coating provides a high level of corrosion resistance. Because of the thickness of the coating, galvanized nuts must be used with galvanized bolts. Grade 2H nuts are higher strength and are meant for use with A325 structural bolts.
Plain Finish is plain unfinished steel. Plain Finish parts have no corrosion resistence. Grade 2H nuts are higher strength and are meant for use with A325 structural bolts of the same finish.
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