Top view of square head set screw. Selection box represents thread diameter.
方头螺钉的俯视图。选择框代表螺纹直径。
Side view of wing screw with adjustable thread length.
螺纹长度可调整的翼形螺钉的侧面图。
Side view of Roundhead screw with adjustable thread length.
螺纹长度可调整的圆头螺钉的侧面图。
Screw , a thread of the nail, for fixed something to another thing …
螺钉，有螺纹的钉子，用于固定某物到另一物…
Screw , a thread of the nail, for fixed something to another thing …
螺钉，有螺纹的钉子，用于固定某物到另一物…
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