Name two head styles of machine screws that are countersunk.
沉头机螺钉有哪两种头型？
Supplemented by Punch, machine screws, springs machines, machinery, and other hardware.
辅以冲床、螺丝机、弹簧机等五金机械。
Latch track shall be attached to door by machine screws into factory installed threaded brass inserts.
门插销轨道应该采用机械螺丝固定在门上工厂预装的螺纹黄铜嵌入件内。
Door stops and hinges shall be secured with stainless steel, pin-in-head Torx machine screws into threaded brass inserts.
门挡和合叶应该采用不锈钢钉入式梅花机制螺丝加固在螺纹黄铜嵌入件内。
They arise in the production of things like machine screws, when production assets like machine tools are used to produce multiple identical product instances.
规模经济可能出现在生产机器螺钉等产品时，在这种生产过程中，可以使用机床等生产资产生产出多个相同的产品实例。
Production of precision screws, special thin-head screws, triangle self tapping screws, machine screws and all kinds of car parts, stamping parts and other products.
生产各种精密螺丝、特殊薄头螺丝、三角自攻螺丝、各种机械用螺丝及车件、冲压件等产品。
We can produce all kinds of fasteners on GB, ANSI, BS, and other standards. Our main products are wood screws, self-tapping screws, machine screws, chipboard screws, etc.
可依据国标、美标、英制等标准生产各种紧固件，主导产品：木螺钉、自攻螺钉、机螺钉、纤维板钉等。
Machine screws or nuts and bolts used to attach balance weights are specifically prohibited.
特别禁止采用机械螺丝，螺母和螺栓来固定平衡重装置。
Machine screws or nuts and bolts used to attach balance weights are specifically prohibited.
特别禁止采用机械螺丝，螺母和螺栓来固定平衡重装置。
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