Slotted Hex Nuts

Slotted Hex Nuts


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Slotted Hex Nut
  
  
 
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Slotted Hex Nuts

Hex nut with opposed slots cut into the top of the nut through the centers of the flats. The slots are on the end opposite the bearing surface. The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. Nuts are made from a low-carbon steel which conforms to the following chemical composition requirements: Carbon-0.47% max, Phosphorous-0.12% max, Sulfur-0.23% max. Hardness is Rockwell C32 maximum and proof load is 72,000 psi.

Slotted Hex Nuts
 
Slotted Hex Nuts
Diameter Width Across
Flats
Width Across
Corners
Thickness Unslotted
Thickness
Width of Slot
Basic Max. Min. Max. Min. Basic Max. Min. Max. Min. Max. Min.
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 7/32 0.226 0.212 0.14 0.12 0.10 0.07
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258 0.18 0.16 0.12 0.09
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320 0.21 0.19 0.15 0.12
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365 0.23 0.21 0.15 0.12
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427 0.29 0.27 0.18 0.15
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473 0.31 0.29 0.18 0.15
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535 0.34 0.32 0.24 0.18
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617 0.40 0.38 0.24 0.18
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724 0.52 0.49 0.24 0.18
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831 0.59 0.56 0.30 0.24
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939 0.64 0.61 0.33 0.24
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 1-1/16 1.094 1.030 0.70 0.67 0.40 0.31
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138 0.82 0.78 0.40 0.31
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.317 1.245 0.86 0.82 0.46 0.37
2 2.0000 3 3.000 2.900 3.464 3.306 1-23/32 1.759 1.679 1.24 1.20 0.52 0.43