With advanced manufacturing technics, Pengli specializes in manufacturing high-tensile hex socket screws and hexheadscrews.
采用先进的制造工艺、专业生产高强度内六角螺钉，六角头螺钉。
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Also known as HexHeadScrews or HexHead Bolts. Includes Standard, Drilled Head, Left Hand Threaded, Self-Sealing, and Military Specification Cap Screws.
也称为六角头螺丝或六角头螺栓。包括标准，钻孔头，左旋螺，自封式，军用规格螺栓。
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Now, new models use nice, shiny chrome, hex - headscrews.