内径千分尺、千分尺、塞规、螺纹规、数显卡尺、高度尺等检验工具。
Inside diameter micrometer micrometer plug gauge thread gauge digital calipers height gauge and other testing tools.
用于试验非组合用垫圈的六角螺栓或六角螺母的最小对边宽度不能大于垫圈内径所对应的螺纹公径直径的1.5倍。
The minimum across flats dimension of the hex bolt or hex nut being used to test the loose washer must not be greater than 1.5 times the basic thread size.
翼缘法兰螺栓应为双头螺栓，螺纹为全长型，内径600mm或以下的法兰的螺栓至少为m 16，内径600 mm以上的法兰的螺栓至少为m 20。
Girth flange bolting shall be of stud bolt type, threaded full length, and at least M16 for flange of 600 mm and smaller inside diameter and at least M20 for over 600 mm inside diameter flange.
翼缘法兰螺栓应为双头螺栓，螺纹为全长型，内径600mm或以下的法兰的螺栓至少为m 16，内径600 mm以上的法兰的螺栓至少为m 20。
Girth flange bolting shall be of stud bolt type, threaded full length, and at least M16 for flange of 600 mm and smaller inside diameter and at least M20 for over 600 mm inside diameter flange.
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