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Manufacturing Services of Cold Heading Bolts at JM Hardware®

Cold heading is one of two ways of making a bolt from a piece of metal. The other is through screw machining, which involves simply cutting away material from a piece of metal until you are left with a shape that you can then add threads and a head to. As you can imagine, this is a process that can result in a lot of waste, particularly if you do not make an effort to recycle some of the material that has been produced after the process. However, it’s still one of the commonest and cheapest ways of making fasteners.

On the other hand, cold heading involves forcing a piece of metal into the desired shape without taking away any material. In a way, you can think of it as a form of molding, only that you use metal instead. The major benefits of using this manufacturing method is that you will be left with very little waste material at the end.

2022 JM Hardware Annual Celebration

2021.114 on this wonderful day. All the staff of Shanghai Jian & Mei Industry and Trade Co., Ltd spent a wonderful annual meeting together

JM Hardware® Nut Manufacturing Process - How Raw Steel Is Transformed Into Highly Exact Metal Implements

The nut is a nut, which is a mechanical part that is fastened by the inner thread and the externally threaded bolt. According to the material, it can be divided into carbon steel, stainless steel, non-ferrous metal and plastic (nylon). How do we produce nuts that are common? What are the types of nuts?

Types of Screw Threads and Screw Thread Specification Explained by JM Hardware®

In this video，JM Hardware® has explained about screw thread terminology like thread pitch, major diameter, minor diameter,bolt shank, thread angle, lead etc. Types of threads and threaded profiles and thread standards like metric thread (M and MJ threads), UN thread or inch series threads (UN threads, UNC threads, UNF threads, UNR thread, UNRF thread, UNRC thread, UNJ thread , UNJF thread & UNJEF thread), NPT thread, BSP thread, ACME, whitworth thread and buttress thread etc.

Semi finished custom hex flange bolt Manufacturer-JM Hardware®