What is the impact of the head size tolerance of the combination screw on its use?

The head size tolerance of the combination screw is like a "small range" for the head size. The size changes within this range will have different impacts on the use of the combination screw. Let's talk about it in detail.

1. Impact on the installation process

If the head size of the combination screw is larger than the standard size, that is, it exceeds the tolerance range. During installation, it may not be able to be smoothly put into the corresponding mounting hole or cooperate with other parts. It's like you have a pair of small shoes, but you have to force a big foot into it. It will definitely be very difficult, or even impossible to put it in at all. In this way, the efficiency of installation will be greatly reduced, and the mounting hole or other parts may be damaged.

If the head size is smaller than the standard, it may be easier to put it into the mounting hole, but it may not be firmly fixed. It's like using a small nail to hang a large painting. The nail is too thin and the painting will fall off easily. If the head size of the combination screw is too small, it may loosen during use, affecting the stability of the entire connection.

2. Impact on connection stability

The appropriate head size tolerance can ensure that sufficient tightening force is generated when tightening the combination screw. If the head size tolerance is not appropriate, for example, the head is too large, the ideal tightening force may not be achieved due to uneven force during tightening; if the head is too small, it may slip during tightening, and the combination screw cannot tightly connect the two parts. Over time, the connection will become loose.

The combination screw and other parts need to have good matching accuracy to ensure the stability of the connection. Improper head size tolerance will destroy this matching accuracy. Just like a puzzle, each piece must be of the right size to fit tightly. If the size of the combination screw head is not right, there will be gaps between other parts or the fit is too tight, so when subjected to external force, it is easy to cause problems such as shaking and displacement.

3. Affecting aesthetics

In some occasions where the appearance requirements are relatively high, if the head size tolerance of the combination screw exceeds the range, the entire product will look unsightly. For example, in furniture making, if the head of the combination screw is too large or too small, it will look very inconsistent with the surrounding parts, just like a beautiful painting with a very abrupt small flaw, affecting the overall visual effect.