High strength screws are indispensable parts of products that need to be tightened. Screw specification, material, color, head type many. Commonly used types of screw head generally have pan head, flat head, countersunk head, hexagonal head, large flat head and other different head screws have what characteristics? What kind of places do they fit in?
Pan head: The English name is Pan head. The head of the screw protrudes from the surface of the object to be engaged after assembly. The common slot types of pan head screws are cross slot, flat slot and meter slot. Generally used for internal or invisible work.
Flat head screw: The code name of flat head is C, and the English name is flat head. Flat head screws can also be called thin head screws. When a flat head screw is inserted into the product, the head is not flush with the product surface like a countersunk head screw, but exposed. The head of the flat head screw is connected to the bolt at a 90 degree Angle, and the head of the flat head screw is very thin, which is more suitable for precise connection components such as mobile phones and watches.
Countersunk head screw: countersunk head code name for K, English name for countersunk head or flat head. The head of a countersunk screw is like a funnel. This screw is mainly used to secure some thin plates. After the whole screw head is tightened, it is in the same horizontal plane with the fastening object and will not be prominent. The product appearance is beautiful and generous. This tight connection is generally used on the outer surface of the workpiece, so that the surface of the workpiece is smooth.
Hex head screws: The code name of hex head is H, English name is hex head. Hexagon head screws are also called outer hexagon screws and outer hexagon bolts. For screws with hexagon head HM5 or higher, the use of hexagon head should be considered when the locking torque is large and the load is large. Mainly has the advantages of easy fastening, disassembly, not easy to slide Angle. At present, there are three kinds of hexagon screws on the market: carbon steel, stainless steel and copper. It is widely used in various industrial fields.
Big flat head screw: Big flat head code name T, English name is truss head or mushroom head. Generally use large flat head screw, because the head diameter of the screw is larger than the head of the general screw, the force area is large, in the screw joint is not easy to damage the product. Usually used between plastic parts.
Round head screw: round head code R, English name is round head. Round head plastic screws have insulation, no magnetic, corrosion resistance, beautiful appearance, never rust and other high quality characteristics. Used in medical machinery industry, wind energy, aviation, office equipment and petrochemical industries.
Post time: Mar-02-2023