Ø d1
mm
p
mm
d2
h
UNF 1/4"
28
25
9
UNF 5/16"
24
25
9
UNF 3/8"
24
30
11
UNF 7/16"
20
30
11
UNF 1/2"
20
38
14
UNF 9/16"
18
38
14
UNF 5/8"
18
45
18
UNF 3/4"
16
45
18
UNF 7/8"
14
55
22
UNF 1"
12
55
22