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Heavy Hex Nut Dimensions
Nut
Size		 Width Thickness
Across
Flats		 Across
Corners		 Basic
1/4 1/2 9/16 15/64
5/16 9/16 41/64 19/64
3/8 11/16 25/32 23/64
7/16 3/4 27/32 27/64
1/2 7/8 63/64 31/64
9/16 15/16 1 1/16 35/64
5/8 1 1/16 1 11/64 39/64
3/4 1 1/4 1 13/32 47/64
7/8 1 7/16 1 5/8 55/64
1 1 5/8 1 27/32 63/64
1 1/8 1 13/16 2 3/64 1 7/64
1 1/4 2 2 17/64 1 7/32
1 3/8 2 3/16 2 15/32 1 11/32
1 1/2 2 3/8 2 11/16 1 15/32
1 5/8 2 9/16 2 57/64 1 19/32
1 3/4 2 3/4 3 7/64 1 23/32
1 7/8 2 15/16 3 5/16 1 27/32
2 3 1/8 3 17/32 1 31/32
2 1/4 3 1/2 3 61/64 2 13/64
2 1/2 3 7/8 4 3/8 2 29/64
2 3/4 4 1/4 4 51/64 2 45/64
3 4 5/8 5 7/32 2 61/64
NOTES:
1. Unless noted otherwise, all dimensions
    are in inches.
2. Width Across Flats is Basic Width and
    indicates Wrench Size.
3. Width Across Corners is Average Width
    rounded to nearest 64th.
4. For reference only.