Does anyone know how to calculate the cost of screws, such as a standard part?

The quickest way is to check the red price.

Or first calculate the weight (diameter * diameter *0.006 17* length = the weight of one thousand pieces) and then multiply it by the price per ton in the market = the price of one thousand pieces.

For example, for a bolt with M 16*40, if the diameter of the screw is calculated as 16, the thickness of the head nut of the screw is 10, and the total length is 50.

That is,16 *16 * 0.00617 * 50 = 78.976, and the weight of 1000 pieces is 78.976kg, which is 78.976 * 5.5 = 40 at the current market price of 5.5/kg. The price of 1000 yuan is 434.368 yuan.