m48通用螺纹螺距是多少 M12-M40的国标螺母的螺距各多少?

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m48通用螺纹螺距是多少

M12-M40的国标螺母的螺距各多少?

M12-M40的国标螺母的螺距各多少?

螺母,螺距各是多少啊。

1.螺纹直径与螺距对照表 2.公、英制对照表、紧固件常用尺寸规格 3.机制螺纹工艺规格表1.紧固件螺纹直径与螺距对照表  螺纹规格tM3tM4tM5tM6tM8tM10tM12tM14tM16tM18tM20tM22tM24tM27tM30tM33tM36tM39tM42tM45tM48tM52tM56tM60tM64粗牙螺距t0.5t0.7t0.8t1.0t1.25t1.5t1.75t2.0t2.0t2.5t2.5t2.5t3.0t3.0t3.5t3.5t4.0t4.0t4.5t4.5t5.0t5.0t5.5t5.5t6.0细牙螺距t-t-t-t-t1.0t1.0-1.25t1.5-1.25t1.5t1.5t1.5t2.0-1.5t2.0t2.0t2.0t2.0t2.0t3.0t3.0t3.0t3.0t3.0t4.0t4.0t4.0t4.0 2.螺栓、螺钉、螺柱公称长度表 6t8t10t12t16t20t25t30t35t40t45t50t(55)t60t(65)t70t75t80t85t90(95)t100t105t110t115t120t125t130t140t150t160t170t180t190t200t220t240t260t280t300注:尽量不采用括号内尺寸3.螺栓、螺钉、螺柱螺纹的公称长度 螺纹规格tM3tM4tM5tM6tM8tM10tM12tM14tM16tM18tM20tM22tM24tM27tM30tM33tM36tM39tM42tM45tM48tM52tM56tM60tM64粗牙螺距t12t14t16t18t22t26t30t34t38t42t46t50t54t60t66t72t78t84t90t96t102t-t-t-t-注:公称长度1 螺纹长度b,则:①1≤125 b2d 6 ②1gt125—200 b2d 2 ③1gt200 b2d 5

m48螺栓标准尺寸?

m48螺栓的标准尺寸如下:
它的公称直径即大径为48毫米,螺距为5毫米,中径为44.752毫米,小径为42.588毫米,头部厚度为30毫米,对边尺寸是75毫米。
普通螺栓按照制作精度可分为A、B、C三个等级,A、B级为精制螺栓,C级为粗制螺栓。对于钢结构用连接螺栓,除特别注明外,一般为普通粗制C级螺栓。