How to quickly distinguish the size of bolts and nuts

The student should be used to holding the caliper.5 are M5 screws or screws. The caliper diameter is greater than 4 and less than 5, which is slightly less than 5. This is the most basic one.Nut is nut and bolt or screw fastening screw together to the function of parts, all production machinery must use an original. There are many types of nut, we have the common national standard, British standard, American standard, day mark nut. The nut according to different materials, the divided into carbon steel, high strength, stainless steel, plastic and so on several big types. According to the product properties corresponding to different standards of the state, is divided into ordinary, non-standard, (old), new gb gb, American, English, German standard.Thread range is divided into different specifications and size. Generally gb, Germany BiaoYong M (M8, M16, for example), thread system, with a score or # said specifications (e.g., 8 #, 10 #, 1/4, 3/8) fasteners, nut is mechanical equipment closely connected parts, through the inside of the thread, the same specifications nut and screw, can be connected together, for example, the M4-0.7 nut only with M4-0.7 screw (in the nut, the M4 refers to the nut inside diameter is about 4 mm, 0.7 refers to the distance between the two thread is 0.7 mm).The same is true of American products. For example, the 1/4 to 20 nut can only be used with 1/4 to 20 screws (the inner diameter of the 1/4 finger nut is about 0.25 inch, 20 fingers for every inch, there are 20 teeth).


.Available production capacity from 3/8”-1-3/8”diameter and length to 17”,Quality can be produced as your demand like Grade 10.9 or Grade 12.9 or other nominated material.Whilst accept to mark the logo as yours conditions on acceptable order quantity.we always supply our customers in grade 10.9 and grade 12.9 on plow bolts with corresponding nuts in grade 10.


Post time: Aug-13-2019