Straight Knurled Head Screw Custom Made Pozidriv Zinc Plating Gallery Straight Knurled Head Screw Custom Made Pozidriv Zinc Plating Cold Forming, Machining Parts Straight Knurled Head Screw Custom Made Pozidriv Zinc Plating Ric Sun2020-06-17T19:37:37-07:00 Straight knurled head screw allows hands or fingers to get a better grip on the head than would be provided [...] Straight Knurled Head Screw Custom Made Pozidriv Zinc PlatingRic Sun2020-06-17T19:37:37-07:00