Steel Nut 3/8"
3/8 in.-16 tpi Zinc-Plated Hex Nut (100-Piece per Box)
http://www.homedepot.com/p/Everbilt-3-8-in-16-tpi-Zinc-Plated-Hex-Nut-100-Piece-per-Box-801750/204274086 $9.57 for 100 (10 cents each)
3/8 in.-16 tpi Zinc-Plated Hex Nut (100-Piece per Box)
http://www.homedepot.com/p/Everbilt-3-8-in-16-tpi-Zinc-Plated-Hex-Nut-100-Piece-per-Box-801750/204274086 $9.57 for 100 (10 cents each)
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