Flat Head Lag Screw


Material : Carbon steel、Stainless steel

Application : Wood、Chipboard、Timber、Composite

Size : M3 - M10、#5 - 3/8

Length : 9 - 400mm、3/8" - 15 3/4"

We can provide a customized service, including a variety of head, head recess, thread, point styles and surface treatment types, to solve you problems.

  • Surface Treatment
  • Screw Drivers
  • Size

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Size: M3 - M10、#5 - 3/8


Head Styles

Flat head (with ribs)、Bugle head (with ribs)、Trim head (with ribs) Cap head、Wafer head Truss head、Modified truss head Oval head、Round headPan head、Pancake headHex-washer head、Washer head (with ribs)、Patent MS CSK head Patent 12-V-ribs head、Custom design head

Thread Styles

Coarse thread、Fine thread           Hi-lo thread Twinfast thread 、 Double thread、Machine thread 、 U thread(U cutting) Cutting thread、Reverse thread         Serrated thread、Twister thread Custom design thread

Point Styles

Sharp point、Type 17 cutting point、Twin cutting point、Drill point、Drill point with wings、Spoon point、Sharp-arrow point、Reduced point、Patent reamer、Patent arrowy、Patent G2、Custom design point

Please let us know your problems, and we can create a customized screw as the best solution! 


  • It will be depends on the product specification included head, point, thread and recess style. Whether having stock still be concerned. 
  • M= thousand pieces
  • Please contact us if any question.


Contact Us

Customer Satisfaction, Research and Development, continuously improvement.

 Tailoring Excellence Through OEM/ODM Solutions.