Nuts are usually produced with the cold or hot forming procedure as well. The choice of one or the other proce- dure depends on the one hand on the size and on the other on the required quantities. This production method is used mainly to manufacture large diameters starting with approx.
Bolts can come in a wide range of different sizes and shapes, but the basic production process generally remains the same. It starts with cold forging steel wire into the right shape, followed by heat treating to improve strength and surface treating to improve durability, before being packed for shipment.