The depth of screw screwing does vary in various cases.
In the case of self-tapping screws, they are mainly used to drill holes in the material and fix them themselves. In this case, the depth of screwing should usually be controlled between 1 and 2 times the diameter of the thread to ensure that the screw can be securely held in the material while avoiding over-screwing that can cause damage to the material or screw breakage.
In the case of wood screws, they are mainly used for fixing in wood. Due to the relatively soft texture of the wood, the screwing depth can be slightly deeper, and it should generally reach 15x to 2x. This ensures that the screws fit snugly against the wood and provide sufficient support.
In the case of machine bolts, the depth of screwing is usually determined based on the thread length. In general, the screw-in depth should be at least 1 of the thread length5 times to ensure that the bolt can firmly connect two or more parts.
In addition to the type and material of the screw, the actual application and material also have an impact on the depth of screwing. For example, when screwing in hard materials, it may be necessary to reduce the depth of screwing to avoid screw breakage or material breakage due to excessive force. When screwing in soft materials, the screwing depth can be increased appropriately to improve the fixing effect.
In general, determining the depth of screw insertion requires a combination of factors. In practice, it is recommended to make judgments on a case-by-case basis and follow relevant standards and specifications. If you are unsure about the exact depth of screwing, it is advisable to consult a professional or consult relevant information for more accurate guidance.