Selection Criteria for Best Collated Drywall Screws
1. The head should be round (this is also the common standard for all round head screws), because of production process problems, the heads of Best Collated Drywall Screws produced by many manufacturers may not be very round, and some may even be slightly square. The problem is that it cannot be completely matched with the gypsum board after screwing in. Is it concentric and rotates around a central point? This should be well understood.
2. The tip should be pointed, especially when you use it on light steel keel. The sharp angle of Best Collated Drywall Screws is generally required to be between 22 and 26 degrees. This "point" is important for Best Collated Drywall Screws, because Best Collated Drywall Screws are screwed directly without prefabricated holes, so the point also assumes the function of drilling through.
3. Can not be eccentric. A simple way to tell if Best Collated Drywall Screws are off-center is to place the round head down on the table to see if the screw part is vertical and in the middle of the head. If the screw is off-center, the problem is that the power tool will shake when screwed in. Shorter screws are fine. If longer screws encounter this situation, the trouble will be big.
ADD.: Gongzi Village Industrial Zone, Longyan County, Hebei Province