Parameters: 100 x fine pitch screw, square inside, surface hardness 500-550HRC, surface treatment blue and white galvanized, cylindrical fine pitch thread 1in, thread length 25 mm/1.0 inch
Self-tapping: This complete set of pocket hole screws can be easily driven and self-tapping without causing the screws to slide or split. Enjoy convenient tools when performing woodworking tasks with ease
Square Drive: The square drive is not easy to fall off, and the washing machine head is perfectly located in the pocket. It makes them easy to drive and prevents skidding while driving
Inner Square Groove Design: The bag screw only has threads on the lower part. This design allows the handle of the pocket screw to slide through the pocket hole and tighten the joints together
Application Range: Alloy steel zinc bag hole screws are widely used in splicing large wood-plastic craft products such as outdoor gardens, fences, docks, balconies, courtyards, etc.