使用观察孔检查螺纹接合是否正确。也称为延长螺母，用于连接和延长螺纹杆。镀锌层可在潮湿环境中提供耐腐蚀性。

提供 3D CAD 模型如需技术图纸和 3-D 模型，请单击零件编号。

每个

螺纹

尺寸 LG。 WD。 视

孔直径 1-9 10-向上

镀锌 钢— 2 级

8-32 5/8 " 5/16 " 1/16 " 93525A277 4.51 美元 3.84 美元

10-24 3/4 " 5/16 " 5/64 " 93525A280 4.51 3.84

10-32 3/4 " 5/16 " 5/64 " 93525A283 5.45 4.64

1/4 "-20 3/4 " 3/8 " 3/32 " 93525A286 9.36 7.97

1/4 "-28 3/4 " 3/8 " 3/32 " 93525A289 9.82 8.36

5/16 "-18 15/16 " 1/2 " 3/32 " 93525A292 9.40 8.01

3/8 "-16 1 1/8 " 9/16 " 1/8 " 93525A301 3.74 3.17

3/8 "-24 1 1/8 " 9/16 " 1/8 " 93525A298 9.82 8.37

1/2 "-13 1 1/2 " 3/4 " 3/16 " 93525A308 5.45 4.63

5/8 "-11 1 7/8 " 15/16 " 3/16 " 93525A315 6.31 5.36

3/4 "-10 2 1/4英寸 1 1/8 " 3/16 " 93525A322 9.37 7.96

1"-8 3" 1 1/2 " 1/4 " 93525A329 15.72 13.35