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3D Model
2D Blueprint
Hexagon Bolts (UNC and UNF threads)
Product Specification
Screw Thread
1/2
Thread Size
1/2
D
0.5
PP
UNC
13
PP
UNF
20
Ds
Max
0.5000
Ds
Min
0.4930
S
Nominal
3/4
S
Max
0.750
S
Min
0.736
E
Max
0.866
E
Min
0.840
K
Nominal
5/16
K
Max
0.323
K
Min
0.302
B
L≤6
1.250
B
L>6
1.500
X
0.385
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