Product
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PATENT SNAKE THREAD
DOUBLE CSK HEAD (WITH 4 RIBS UNDER HEAD) DECK SCREWS TY-17 WITH ONESNAKE THREAD (USA PATENT NO. US7,044,702B2 & EU PATENT NO.1557575), AND ONE RING (PATENT NO.I294017)
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PATENT SQUARE-KNIFE THREAD
DOUBLE CSK HEAD (WITH 4 RIBS UNDER HEAD) DECK SCREWS TY-17 WITH SQUARE-KNIFE THREADS (PATENT NO. 200885) AND ONE RING (PATENT NO. I294017)
- SCREW NAILS