Precision Screw Classification

Precision screw classification has self-tapping type precision screws and machine wire precision screws, self-tapping type precision screws are mainly shown as the tail is cutting edge, teeth are shown as self-tapping teeth. Tooth thread this is not very good to say, there is self-tapping tooth thread, organic silk thread. Self-tapping precision screw head shape there are many, there are plate head, there is a sink, there is a semi-sink, the shape of the head also has its own pad and no pad.

Tail performance has a sharp tail self-attack, there is a slot self-attack, there are B-tooth self-attack, there are quick teeth self-attack. Self-tapping precision screws include the coil self-tapping screw, sink head self-tapping screw, semi-sink self-tapping screw, bring their own pad self-tapping screw, cut tail self-tapping screw and so on. Machine wire precision screws, refers to the tail without cutting edge, is flat end, and its tooth thread is more uniform, shape in all aspects and self-attack ingesting class.

Precision screw material has iron and stainless steel, iron precision screws are generally made of iron wire, the material has low-carbon steel, medium carbon steel, high carbon steel these three. Screw wire has 1010A, 1018, 10B21, 45 steel, etc. Stainless steel precision screws are generally made of stainless steel screw wire. Its materials are stainless steel SUS201, stainless steel SUS304, stainless steel SUS776, stainless steel SUS316, stainless steel SUS404 and so on.