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Русский Coarse Thread Drywall Screws vs Fine Thread Drywall Screws
Drywall screws are used to install various gypsum boards, ceilings, lightweight partitions, light steel keels, etc. Its biggest feature in appearance is the Phillips bugle head. And there are Coarse Thread Drywall Screws and Fine Thread Drywall Screws, for different applications.
Main differences between coarse thread drywall screws and fine thread drywall screws
- Different appearances. The biggest difference in appearance between the two is that the thread pitch is different. Coarse thread drywall screws have a large pitch, while fine thread drywall screws have a small pitch.
- Different uses. Fine thread drywall screws are mainly used for installing drywall screws to metals or other harder surfaces. For high-strength metal materials, the fastening effect of fine thread drywall screws are better. Coarse thread drywall screws are used for installing drywall screws to wood studs. Coarse thread drywall screws are conducive to the protection of wood grain and there is little chance of damage to the wood grain.
- Different anti-vibration and anti-loosening capabilities. Fine thread drywall screws have a smaller pitch, so they are more conducive to self-locking and anti-loosening. And having more threads can reduce the effect of leakage and achieve the effect of sealing. However, fine thread drywall screws are not suitable for use on materials with excessively thick tissues and poor strength. When the tightening force is too large, fine thread drywall screws are easy to slip. Compared with fine thread drywall screws , coarse thread drywall screws have a large pitch and a large thread lead angle, so the self-locking performance is poor. Therefore, in the vibration environment, it is necessary to install anti-loosening washers and self-locking devices.
- Different strengths. Coarse thread drywall screws are characterized by high strength, good interchangeability, and there are standards for comparison. The strength of fine thread drywall screws is lower than that of coarse thread drywall screws, and the thread is easy to be damaged. Therefore, fine thread drywall screws are not recommended to disassemble and assemble many times. The matching nuts and other fasteners should also be equally accurate and with slight errors in size, it is easy to damage the screws and nuts at the same time.
