Are stainless steel non-standard screws really possible to prevent theft? We see that there are many non-standard screws with pentagonal columns and non-standard screws with hexagonal columns on the market. Are they really likely to play a role in theft prevention? Today, let's talk about the consequences of stainless steel non-standard screws, which kind of stainless steel non-standard screws can effectively prevent theft.

First of all, to see whether the non-standard screws are effective, it depends on his disassembly tool. Is it the only one? Is it only possible with this screwdriver? If not, then the anti-theft effect of this non-standard screw is extremely limited.

Therefore, if you want to customize effective non-standard screws, you must re-design, from the head shape, groove shape, and tooth pattern of the screw, and then design a matching disassembly tool according to the groove shape of the screw. Different from the non-standard screws in the market, even if there are disassembly tools for non-standard screws in the market, only the groove shape of the screw does not match the specification and graphics of the screwdriver, so it cannot be disassembled naturally.

The pentagonal non-standard screw with column in the picture below is designed and produced by the screw manufacturer according to the customer's request. The diameter of the screw thread is similar to the screw on the market. The head type of the non-standard screw with pentagonal column is , the groove shape is completely different from the non-standard screws on the market. Non-standard screws are divided into three parts, namely size, mechanical properties and surface defects. The specific inspection items of each part have different regulations according to different products. Screw customization, for example, the dimension inspection items for hexagonal nuts are specified as thread general gauge, thread stop gauge, thread minor diameter, opposite side width, diagonal dimension, nut height, and the perpendicularity of the nut bearing surface and the thread axis; while the flat washer is specified as the inner diameter , outer diameter, thickness, coaxiality of the outer circle to the inner hole and flatness, etc. As for the mechanical performance inspection items, hardness and tensile strength are specified for hexagonal nuts, while only hardness is specified for flat washers.

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