Metric DIN 603 / ISO 8678 Mushroom Head Square Neck Carriage BoltsMetric DIN 603 mushroom head square neck carriage bolts have a smooth domed head that prevents them from being tightened or loosened from above. The square shoulder below the head is designed to self-anchor into wood and resists turni

Because stainless steel 304 have good ductility, if you use it misemploy, it will be thread galling, and if you still use electric wrench after thread galling, the bolt will be broken.there are below advice way to avoid the thread galling, 1. chose right bolts, a, chose suitable bolt length and diam

Accept1. International Metric Thread System:China's national standard CNS uses the thread. The crest is flat, easy to turn, and the bottom isIt is rounded to increase the thread strength. The thread angle is 60 degrees and the specification is indicated by M. publicThreads can be divided into coarse

hex bolt and hex tap screw can be very confusing ,Its one of those situations where you may order a hex cap screw and wind up with a hex bolt.They have same hex head and machine screw . Today, we will explain the details of hex bolts vs hex tap screw to you.

In November of 2018, Jiaxing Goshen Hardware CO LTD officially passed the ISO9001:2015 quality management system certification and audit, and obtained the relevant certificates.

hexagon bolts, hex head bolts (partial threads) - Class C and hex head bolts (full thread) - Class C. Also known as hex head bolts (rough), hex head bolts, black iron screws.