Male female bolt is the bolt with both internal thread and external thread, it usually used for connecting. This male-female bolt is made by cold heading method. Ever Hardware provides custom-made fasteners and customizable packaging.
A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. A screw thread is the essential feature of the screw as a simple machine and also as a fastener.
The mechanical advantage of a screw thread depends on its lead, which is the linear distance the screw travels in one revolution. In most applications, the lead of a screw thread is chosen so that friction is sufficient to prevent linear motion being converted to rotary, that is so the screw does not slip even when linear force is applied so long as no external rotational force is present. This characteristic is essential to the vast majority of its uses. The tightening of a fastener’s screw thread is comparable to driving a wedge into a gap until it sticks fast through friction and slight plastic deformation.
The surface treatment for this male-female bolt is zinc plating, zinc coatings prevent oxidation of the protected metal by forming a barrier and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not cause a breakdown of the substrate’s surface integrity as it is formed. Indeed, the zinc oxide, if undisturbed, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminum and stainless steels by their oxide layers. The majority of hardware parts are zinc-plated, rather than cadmium-plated.
Category | Male Female Bolt |
---|---|
Finish | Galvanization |
Thread type | Metric/Imperial/According to Request |
Material | Stainless Steel/Carbon Steel/Aluminum/Brass/Copper, etc. |
Brand | Ever Hardware |
Place of origin | China Mainland |
Size option | M1.0 to M18/#0 to 1/2″ |
![Male Female Bolt Internal Thread And External Thread Cutting Conical](http://ever-hardware.com/wp-content/uploads/2016/09/Male-female-bolt-internal-thread-and-external-thread-cutting-conical.jpg)
![Male Female Bolt Internal Thread And External Thread Cutting Conical](http://ever-hardware.com/wp-content/uploads/2016/09/Male-female-bolt-sinternal-thread-and-external-thread-cutting-conical.jpg)
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Those look great! All the specs look perfect.
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The bolts are perfect and they’re fits good.
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Height is also ok.
I tested the bolts this morning and they are perfect. Thank you so much.
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