The processing technology for square nuts primarily addresses the issues of significant vertical deviation in the thread hole during square nut manufacturing, varying sizes at the welding points, and inconsistent heights of the welding points.

The processing technology for four-way nuts is as follows:

a. Nut body shaping, using a cold heading machine to cold heading the billet into shape.

b. Punching, create a through-hole at the center of the nut body using a cold heading machine.

c. Re-shape the nut body again, using the center hole of the nut body as the positioning reference for the second reshaping.

d. Forming the pull angle, using the center hole of the nut body as the positioning reference, and deforming a welding point at the edge of one end face of the nut body with a cold heading machine.

e. Thread cutting, forming a square nut.

The process locates the center hole during cornering, effectively ensuring the perpendicularity of the four-nut thread holes, while also maintaining small size deviations and consistent heights among all welding points.