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Hex Steel Nut Nut Type

2018-08-06
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Hex Steel Nut Nut type

Use of different types of nuts

Nut is our common kind of fastener products, it is mainly used with stainless steel bolts with each other, play a relative fastening effect. And in the use of it, we must first understand its specific use, with which fasteners used together to achieve the best results. Here we list some of the types of stainless steel nuts we usually see and their use.

One, hex nuts

Uses: also known as stainless steel hex nuts, with bolts, screws with the use.

Second, slotted nuts

Uses: stainless steel slotted nut with the screw at the end of the screw with the hole, with a cotter inserted into the fixed locking, mainly for vibration load on the device.

Three, flange nuts

Uses: stainless steel hexagonal flange nuts have a greater support area and the ratio of stress area, which can withstand higher preload. So generally used in automotive engines, heavy machinery and other products.

Four, round nuts

Uses: round nuts for shaft parts to prevent axial displacement, with the use of retractable washers.

Five, butterfly nuts

Uses: butterfly nuts for connecting strength is not high, often need to disassemble, can be hand-twist nut. Such as steel saws, newspaper folders and other occasions.

Six, lock nut

Uses: Self-locking nuts and ordinary hex nuts, but more than ordinary nuts have a loose function, generally used in the vibration of the connection site.

Seven, cover nuts

Uses: cover nut than ordinary nut more than a decorative function.

Flange nut and hex nuts difference:

Flange nuts and general hex nuts are common two nuts, their size and thread specifications are basically the same, but compared to the hexagonal nut shape is different, it is the gasket and nut is one, in the use of the time No need to use another gasket, but also in the following non-slip teeth, which increased the nut and the workpiece surface area contact, compared to ordinary nut plus gasket combination, more solid and more force.

Commonly common flange nut specifications are generally below the M20, because most of the flange nuts are used in the pipeline and the flange, so subject to the workpiece, flange nut specifications compared with the nut is less. M20 above some of the flange nuts are mostly flat flanges, flange surface is no teeth, most of these nuts used in some special equipment and special places, the general sales manufacturers do not spot.

Flange nut connection factor

When selecting a flange connection nut, consider the factors such as pipe operating pressure, operating temperature, media type and gasket type.

Gasket type and operating pressure, operating temperature, are directly on the fastener material strength requirements. For example, a flange connection of a low pressure, highly toxic media pipe sealed with a wound gasket, although the operating pressure and temperature of the pipe are not high, but because of the greater pressure required to form the initial sealing of the wound gasket, Requiring fasteners to bear the load is also large, therefore, in this case requires fasteners using high-strength alloy steel material.