美規(guī)螺絲常見知識(shí)
文章摘要:b.或以英制外徑表示, 如0.086-56, 0.112-40 , 0.138-32 , 0.164-32 , 0.190-24etc. Ex: 632 8 P P B: Finish Code: 外觀處理規(guī)格 Head Code: 頭部外型 Drive Code: 頭部剖溝,特征型號(hào) Length Code: 螺絲長(zhǎng)度 Thread Code: 螺絲型號(hào) B-1: Thread Code: 螺絲型號(hào) B-2: L..
美規(guī)螺絲常見知識(shí)
a.一般以番號(hào)標(biāo)示, 如 #2-56, #4-40, #6-32, #8-32, #10-24…etc.
b.或以英制外徑表示, 如0.086-56, 0.112-40 , 0.138-32 , 0.164-32 , 0.190-24…etc.
Ex: 632 – 8 – P P B:
Finish Code: 外觀處理規(guī)格
Head Code: 頭部外型
Drive Code: 頭部剖溝,特征型號(hào)
Length Code: 螺絲長(zhǎng)度
Thread Code: 螺絲型號(hào)
B-1: Thread Code: 螺絲型號(hào)
B-2: Length Code: 螺絲長(zhǎng)度(B-3, B-4,B-5 : 標(biāo)示方式與公制相同)
美規(guī)螺絲長(zhǎng)度須經(jīng)換算, 才是公制mm 尺寸. 換算公式: (Length Code / 32) x 25.40 = 公制長(zhǎng)度mm