How does purchase good screws from Shenzhen machine screw manufacturers

Shenzhen machine screw manufacturers so many, how to purchase a good screw? This may be a question that every buyer wants to ask. The quality of screws will directly affect the subsequent use, so you must master the method of distinguishing the quality of screws in order to purchase good screws. The following method can help you to choose.

First of all, by measuring the outside diameter, the inferior product is thin and short, which obviously does not meet the quality standard. Then, look at the appearance of the screw, the good screw after surface processing, high gloss, no sand hole joint smooth, and poor quality screw is rough, thread shallow, burring more, screw Angle width is not the same, thread groove is too shallow, thread uneven. Must seek the shenzhen machine screw manufacturers of good faith to purchase, the more strict the manufacturer’s requirements for product quality, the more guaranteed the quality.

Shenzhen machine screw manufacturers Shi Shi Tong 32 years of the technology development process, in strict accordance with the standard, all screws are through strict technology, eight procedures, eight layers of quality inspection, layer upon layer check, screw factory qualified rate as high as 99.8 percent, the purchase of screws identified  Shi Shi Tong.

Skype: kalyn qin M: +86 18124507113 Tel: +86 0755-85296744 annie@szsst88.com Add: No. 11, Dinghou Road, Dongfang Community, Songgang Street, Baoan District, Shenzhen, Guangdong, China