Why is the hexagonal size recommended for allen key socket head screw?

Today, Shi Shi Tong screw manufacturer received an inquiry from Spain. The customer said he wanted to customize a size #8-32 with two lengths, one of which is 1.5″ and the other is 3/4″. Question he only have 7,000pcs allen key socket head screw for each type. Can we make it? If so, what is the price?

After opening the customer’s drawing, we found that the customer’s length is 1.5″ half thread, and the rod is made according to the large rod. If it is produced according to the customer’s size, it must be molded, or punched out and then the rod Give it a try. But the cost of doing so is also very high. The other one with a length of 3/4″ is fully threaded. Therefore, Shi Shi Tong screw manufacturer asked customers if they could change the threads to half threads, which would save some mold costs. The customer agreed and said they could work with full threads.

In addition, the diameter and thickness of the head are the same for both lengths, but the opposite sides and depth of the internal hexagon are different. In particular, the 1.5″ internal hexagon is larger across sides and has a deeper depth. This design was possible when it was still half-threaded. But after changing to a full thread, the depth of the internal hexagon will be shallower. According to The original hexagonal depth and groove are already very close to the bottom diameter of the thread, so it is easy to break the head when using the screw. Therefore, Shi Shi Tong screw manufacturer recommends that customers adjust the hexagonal depth of the allen key socket head screw and the corresponding screws. Changing the side length to 3/4″ is not easy to break, and the inner hexagon of the same size will be easier to produce during production.

The customer also accepted our suggestions and said that we were very professional and that he would place an order for us after finalizing the other accessories. In the early stage of communication, we should save costs for them from the perspective of customers, do you think so?

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