螺紋規(guī)格 | 長度 | 螺紋長度 | 頭部寬度 | 頸圈長度 | 最低硬度 | |
---|---|---|---|---|---|---|
碳鋼 發(fā)黑 | ||||||
有項頸 | ||||||
10-24 | 3 1/4" | 3/4" | 1 1/2" | 1/2" | HRC 45 | A2HA000004 |
1/4"-20 | 4 3/8" | 3/4" | 2 1/2" | 1/2" | HRC 45 | A2HA000005 |
5/16"-18 | 4 7/16" | 3/4" | 3" | 1/2" | HRC 45 | A2HA000006 |
3/8"-16 | 5" | 3/4" | 3 1/2" | 1/2" | HRC 45 | A2HA000007 |
1/2"-13 | 5 5/8" | 3/4" | 3 1/2" | 1/2" | HRC 45 | A2HA000008 |
1/2"-13 | 7 5/8" | 3/4" | 3 1/2" | 1/2" | HRC 45 | A2HA000009 |
5/8"-11 | 6 3/8" | 3/4" | 3 1/2" | 1/2" | HRC 45 | A2HA000010 |
3/4"-10 | 6 7/8" | 3/4" | 3 1/2" | 1/2" | HRC 45 | A2HA000011 |