







Dry wall screws are a type of fastener specifically designed to secure dry wall materials such as gypsum board, lightweight partition walls, etc. The following provides a detailed description of their structural characteristics, classification purposes, specification parameters, and usage precautions:
1, Structure and material characteristics
1. Appearance features
Horn head design: The head is designed in a horn shape, which can increase the force area, prevent surface cracking of the board, and ensure a tight fit with the board.
• Slender nail body: The nail body is slender and threaded, making it easy to penetrate the board and firmly fixed to the keel or wall.
2. Materials and Craftsmanship
Material: Usually made of carbon steel, the surface is treated with phosphating, galvanizing, etc. to enhance rust prevention performance.
• Thread design: divided into two types: double line fine teeth and single line coarse teeth:
Double line fine thread: The thread is relatively fine, suitable for connecting gypsum board and metal keel (thickness ≤ 0.8mm), with high fastening force.
Single line coarse thread: The thread is wide and suitable for connecting gypsum board and wooden keel, with faster attack speed and less likely to damage the wood structure.
2, Classification and Usage
1. Classify by thread type
Double line fine tooth dry wall nail: suitable for connecting gypsum board and metal keel, with tight threads and good fixing effect.
Single line coarse tooth dry wall nail: suitable for connecting gypsum board and wooden keel, with fast attack speed and suitable for wood materials.
2. Classify by special function
Self drilling drywall nail: With a drill bit at the front end, it can simultaneously complete drilling and tapping, suitable for quick installation of metal keels (thickness ≤ 2.3mm).
Pin screws: used to connect thin metal plates, with high hardness on the threaded surface, suitable for specific industrial scenarios.
3. Classified by material and surface treatment
Black drywall nails: mainly used for fixing gypsum boards, with low cost, suitable for general indoor environments.
Stainless steel drywall nails: Strong corrosion resistance, suitable for humid or high humidity environments such as bathrooms, kitchens, etc.
Galvanized drywall nails: with good rust resistance, suitable for scenarios that require long-term durability.