Guidelines to Make Purchasing Bolt Threads Simpler

Author: hostarticles | Posted: 17.01.2012

If you find buying bolt threads is a difficult job to do, the thread count of the bolts is the simplest way of choosing them. The threads are like circular grooves surrounding the whole bolt. The thread should be of the correct shape. The dimension of the thread bolts are marked in millimeter and is designated as Mn(n being the size of the thread)..

Bolt threads are found both in online or local hardware stores. You should acquire have some knowledge about them. The ones with the concave threads are named as breakaway bolt and they are mostly found in airplanes or fire extinguishers. Tap bolts are those which have threads from bottom to its peak. Toggle bolts have something called wings with them. People often are quite confused between bolts and screws. Although there are differences between them, they both are used for the same purpose.

The various factors that decide the dimensions of thread bolts are grade mark, mechanical properties and nominal size range measured in inches. Tensile strength, yield strength and proof load are some of its mechanical properties and inch is the unit of their measurement. The bolt threads made of medium carbon steel has a nominal range of about 1/4 to 1 and 1/2. The tensile strength, yield and proof load of such varieties lie in the range of 60000, 36000 and 33000 respectively. The ones made of low carbon steel has mechanical properties almost same as the former but differs in their nominal range which is around 1/4 to 4. The low carbon steel varieties are named as ASM A307 Grades A and B. Having this much information about them will make buying thread bolt quite easier and simpler than before.

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