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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