SQUARE NUTS
Catalog No. Nom Size Threads per Inch  Width  Thickness  Approx. Ship Wt. Per Each 
inch mm
SN38 3/8 9,53 16 5/8" 21/64" 0.02 lbs.
SN12 1/2 12,70 13 13/16" 9/16" 0.08 lbs.
SN58 5/8 15,88 11 1" 35/64" 0.10 lbs.
SN34 3/4 19,05 10 1-1/8" 21/32" 0.14 lbs.
SN78 7/8 22,23 9 1-5/16" 49/64" 0.30 lbs.
SN01 1 25,40 8 1-1/2" 7/8" 0.50 lbs.
SN114 1-1/4 31,75 NA NA NA NA

Materiel: Steel, Hot dip galvanized per ASTM A153