规格
每英寸牙数
Size
Thread-Perinch
3/8 ACME
12
1/2 ACME
10
5/8 ACME
8
3/4 ACME
6
7/8 ACME
1 ACME
5
1-1/8ACME
1-1/4ACME
1-3/8ACME
4
1-1/2ACME
1-3/4ACME