Pennoyer-Dodge Company |
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Standard Thread Rings |
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Nominal Size Ring Holder Size |
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# 0-80 UNF |
1T |
# 1-64 UNC | 1T |
# 1-72 UNF | 1T |
# 2-56 UNC | 1T |
# 2-64 UNF | 1T |
# 3-48 UNC | 1T |
# 3-56 UNF | 1T |
# 4-40 UNC | 1T |
# 4-48 UNF | 1T |
# 5-40 UNC | 1T |
# 5-44 UNF | 1T |
# 6-32 UNC | 1T |
# 6-40 UNF | 1T |
# 8-32 UNC | 1T |
# 8-36 UNF | 1T |
# 10-24 UNC | 1T |
# 10-32 UNF | 1T |
# 12-24 UNC | 1T |
# 12-28 UNF | 1T |
# 12-32 UNEF | 1T |
1/4-20 UNC | 2T |
1/4-28 UNF | 2T |
1/4-32 UNEF | 2T |
5/16-18 UNC | 2T |
5/16-24 UNF | 2T |
5/16-32 UNEF | 2T |
3/8-16 UNC | 3T |
3/8-24 UNF | 3T |
3/8-32 UNEF | 3T |
7/16-14 UNC | 3T |
7/16-20 UNF | 3T |
7/16-28 UNEF | 3T |
1/2-13 UNC | 3T |
1/2-20 UNF | 3T |
1/2-28 UNEF | 3T |
9/16-12 UNC | 4T |
9/16-18 UNF | 4T |
9/16-24 UNEF | 4T |
5/8-11 UNC | 4T |
5/8-18 UNF | 4T |
5/8-24 UNEF | 4T |
11/16-24 UNEF | 4T |
3/4-10 UNC | 4T |
3/4-16 UNF | 4T |
3/4-20 UNEF | 4T |
13/16-20 UNEF | 4T |
7/8-9 UNC | 5T |
7/8-14 UNF | 5T |
7/8-20 UNEF | 5T |
15/16-20 UNEF | 5T |
1-8 UNC | 5T |
1-12 UNF | 5T |
1-14 UNS | 5T |
1-20 UNEF | 5T |
1 1/16-18 UNEF | 5T |
1 1/8-7 UNC | 5T |
1 1/8-12 UNF | 5T |
1 1/8-18 UNEF | 5T |
1 3/16-18 UNEF | 6T |
1 1/4-7 UNC | 6T |
1 1/4-12 UNF | 6T |
1 1/4-18 UNEF | 6T |
1 5/16-18 UNEF | 6T |
1 3/8-6 UNC | 6T |
1 3/8-12 UNF | 6T |
1 3/8-18 UNEF | 6T |
1 7/16-18 UNEF | 6T |
1 1/2-6 UNC | 6T |
1 1/2-12 UNF | 6T |
1 1/2-18 UNEF | 6T |