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Hexagon Bolts (UNC and UNF threads)

AS /NZS 2465 - 1999 (R2016)

Display drawing:

Screw Thread 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
Thread Size 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
D 0.25 0.313 0.375 0.438 0.5 0.563 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5
PP UNC 20 18 16 14 13 12 11 10 9 8 7 7 6 6
PP UNF 28 24 24 20 20 18 18 16 14 12 12 12 12 12
Ds Max 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.7500 0.8750 1.0000 1.1250 1.2500 1.3750 1.5000
Ds Min 0.2450 0.3065 0.3690 0.4305 0.4930 0.5545 0.6170 0.7410 0.8660 0.9900 1.1140 1.2390 1.3630 1.4880
S Nominal 7/16 1/2 9/16 5/8 3/4 13/16 15/16 1-1/8 1-5/16 1-1/2 1-11/16 1-7/8 2-1/16 2-1/4
S Max 0.438 0.500 0.562 0.625 0.750 0.812 0.938 1.125 1.312 1.500 1.688 1.875 2.062 2.250
S Min 0.428 0.489 0.551 0.612 0.736 0.798 0.922 1.100 1.285 1.469 1.631 1.812 1.994 2.175
E Max 0.505 0.577 0.650 0.722 0.866 0.938 1.083 1.299 1.516 1.732 1.949 2.165 2.382 2.598
E Min 0.488 0.557 0.628 0.698 0.840 0.910 1.051 1.254 1.465 1.675 1.859 2.066 2.273 2.480
K Nominal 5/32 13/64 15/64 9/32 5/16 23/64 25/64 15/32 35/64 39/64 11/16 25/32 27/32 1-5/16
K Max 0.163 0.211 0.243 0.291 0.323 0.371 0.403 0.483 0.563 0.627 0.718 0.813 0.878 0.974
K Min 0.150 0.195 0.226 0.272 0.302 0.348 0.378 0.455 0.531 0.591 0.658 0.749 0.810 0.902
B L≤6 0.750 0.875 1.000 1.125 1.250 1.375 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.250
B L＞6 1.000 1.125 1.250 1.375 1.500 1.625 1.750 2.000 2.250 2.500 2.750 3.000 3.250 3.500
X 0.250 0.278 0.312 0.357 0.385 0.417 0.455 0.500 0.556 0.625 0.714 0.714 0.833 0.833