Bolts are used as a fastener. They are used for various purposes. You may have used several types of bolts in your life, but have you ever used high strength friction grip bolts (HSFG)? Do you know the advantages of HSFG bolts and how they are made? If your answer to these questions is ‘no’ then you must give it a try. In today’s blog, we’ll share information on these types of bolts, the benefits of using them and how they are manufactured. Stick to this blog to know about these bolts. Let’s get started:
What are High Strength Friction Grip Bolts (HSFG) and How They are Made?
HSFG bolts have great strength and are manufactured from medium carbon steel bars. By using tempering and quenching processes, the strength of HSFG bolts is built. This process is also considered alloying steel. Steel washers of carburized steel or hard steel are offered to evenly divide the clamping force on the bolted member and to stop the threaded portion of the bolt from bearing on the attaching pieces.
If the bolts are fastened by using a nut, the nut is manufactured snug and is fastened a half turn by hand wrenches, then it is not required to use washers. The impact resistance and vibrations of the joint are also enhanced. The head of the bolts and nuts are kept large enough. This is done to offer the right bearing area. If you are looking for high strength friction grip bolts (HSFG) bolts manufacturer, then you can search online.
Reasons for Using High Strength Friction Grip Bolts (HSFG)
There are various advantages of using HSFG bolts. Take a look at the below section to understand the reasons for using HSFG bolts:
- HSFG bolts are robust and this makes them easy to offer a rigid joint. When you use these types of bolts, then there will be no slippage between the objects attached.
- When they are manufactured, large tensile forces are created in bolts. As a result, they provide large clamping forces to the objects attached. High frictional resistances are created. It offers a high static strength to the connection.
- The frictional resistance is better outside the hole. As a result of this minor load is transmitted with the help of the net section. The chance of failure at the net section is reduced by using HSFG bolts.
- There will be consistent tension in bolts. In addition to this, these bolts can also manage load, and nuts can prevent from loosening.
- Fewer labourers are required to make the connection and as a result, it will be a cost-effective method.
- Bolts are fastened by using wrenches, so there will be no noise nuisance.
- Despite this, modification or alteration can be done quickly and easily.
- As compared to rivets, fewer bolts are needed to obtain greater strength.
What is the difference between HSFG and normal bolts?
HSFG bolts can’t be used again and normal bolts can be used again. HSFG bolts are manufactured by using high-strength steel and ordinary bolts are made by using ordinary steel and only need to be fastened. The screw holes of normal bolts are not larger as compared to HSFG bolts, but screw holes of normal bolts are extremely small. In structural steelwork, high strength friction grip bolts are used.
How do High Strength Friction Grip Bolts Work?
HSFG bolts work more effectively than other bolts as they support the weight by gripping the plates together so that they can’t move or slip. The friction produced between the plates is equivalent to the pressure being applied on the plate by the weight of the beam that is supported by HSFG bolts.
To ensure that the plates don’t move, the HSFG bolts should be preloaded carefully. Before you use HSFG bolts, ensure the area around the bolt should be clean and unpainted, and the bolt requires to be fastened precisely.
Wrapping up
The blog is all about high strength friction grip (HSFG) bolts, including the benefits of using these bolts and the material used in manufacturing them and the difference between normal bolts and HSFG bolts. If you are interested in buying these bolts, then you can buy without any worries. There are various manufacturers of these types of fasteners, and you can search online as well.