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Dry wall nails have to buy standard
Drywall screws to buy standard:
1. the head is round (which is also a common standards all round head screws), because production problems, many manufacturers have produced head drywall screws may not be round, some of which are small square. Brings problem is screwed into the not fully match the gypsum board, concentric, rotating around a center point, this should be very easy to understand.
2. tip to tip, especially if you are using light steel keel was. General requirements for drywall screws have sharp corners between the 22~26du, requires the head angle full cannot have silk, cracking phenomenon. The "sharp" is the most important for drywall screws, preformed holes in drywall screws had to used, directly into, point also assumed the drill through functionality. Especially when used on a light steel keel, good tip can lead to drill into, directly affect the use. By national standards, Board nailed to the wall within the 1 second drill 6mm iron.
3. not eccentric. Simplest method determines whether the drywall screws on the experience is face-down on the table with round head, see if the threaded portion of the vertical and in the head. If the screw is experience, and brings the problem is power tool screw-ins will shake and wobble. Short screws, if longer screws have encountered such a situation that you're in big trouble.
4. slot in round the Center, otherwise, and 3 case.