hex head set screw 六角头止动螺钉
hex-head set screw 六角头固定螺钉
socket head set screw wrench 套筒头螺丝扳手
Square head set screw 方头螺丝
hollow head set screw 空心头固定螺钉
Flat head set screw 定位销螺丝
hollow-head set-screw 空心头固定螺钉
head set screw
头紧螺钉
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Top view of square head set screw.
圆头一字槽螺钉的俯视图。
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Top view of slotted head set screw.
埋头一字槽螺钉的俯视图。
Top view of fluted socket head set screw.
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