特价TOSGM1.7*0.35RH6挤压丝锥

特价TOSGM1.7*0.35RH6挤压丝锥的详细描述：

切削工具螺纹代号Thread Code

一、英制螺纹（螺纹牙型�?5度）Thread of British standard ( Thread pitch shape angle 55��)
BSW－－－－英国标准惠氏螺纹（粗牙）British Standard Whitworth Thread ( Coarse )
BSF－－－－英国标准惠氏螺纹（细牙）British Standard Whitworth Thread ( Fine )
G－－－－直管螺纹（外螺纹分A、B两面级、丝锥分G、G－D）Straight pipe thread ( Outside )
thread in AB: taps in G、G－D )
R－－－－锥管外螺纹（旧代号ZG;KG）Outside paper pipe thread ( Old thread code ZG,KG )
RC－－－－锥管内螺纹（旧代号ZG;KG）Inside taper pipe thread ( Old thread code ZG,KG )

二、美制螺纹（螺纹牙型�?0度）Thread of American standard ( Thread pitch shape angle 60��
UNC－－－－统一制粗牙螺纹（代替NC）Unified coarse pitch thread ( Instead of NC )
UNF－－－－统一制细牙螺纹（代替NF）Unified fine pitch thread ( Instead of NF )
UNEF－－－－统一制超细牙螺纹Unified superfine pitch thread
UN－－－－－统一制不变螺距螺纹Unified thread
UNS－－－－统一制特殊螺纹Unified Special thread
NPT－－－－一般用途锥管螺纹（旧代号Z;K）Taper pipe thread for general purpose ( Old
thread code Z,K )
NPSC－－－－管接头直管内螺纹Internal straight pipe thread for connection
NPSM－－－－设备上自由配合，机械连接用直管螺纹Straight pipe thread for general purpose
NPTF－－－－干密封锥管螺纹Dryseal taper pipe thread
NPSF－－－－干密封燃油直管螺纹Dryseal straight pipe internal thread
NGT－－－－气瓶用锥螺纹Special thread for gas cylinder

三、米制螺纹Metric thread
ZM－－－－－米制锥管螺� Metric taper pipe thread

四、其它螺纹Other threads
SM－－－－缝纫机螺纹Thread for sewing machine
PZ－－－－气瓶用锥螺纹Special thread for gas cylinder
5V1�?0V1－气门芯螺纹5V1�?0V1－Tyre valve thread

螺纹代号说明示例：Explanation of thread code. e. g.
1/4�?0UNC
1/4－公称直�?/4" nominal dia. 1/4"
20－每�?0牙twenty teeth per inch
UNC－美标统一制粗牙螺纹unified coarse pitch thread ( American standard)