4-40 unc 2b drill size

#4-40 UNC 2B STI Go/NoGo Thread Plug Gage w/handle-Class X. SKU. STI-#4-40-2B-D/E. $135.00. Calib...

2 - 56 UNC. No. 1 - 64 UNC. No. 3 - 48 UNC. 1.854. 2.184. 2.515. 1.598. 1.890. 2.172. 1.425. 1.69...

購買09670019954 - Harting - D Sub Jack Screw, With 4-40 UNC-2B Female Screwlock, 13 mm, M3。e络盟提供優惠價...

4-40 UNC-2B 是美国统一螺纹，内螺纹。4表示是编号是4，螺纹公称直径为0.112英寸，2表示螺纹精度等级，B表示内螺纹，40代表螺纹牙数为每英寸40牙。