Customization: | Available |
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Material: | Stainless Steel |
Type: | Hexagon Head |
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Hexagonal bolt actually refers to a fastener composed of a head and a screw. Bolts are mainly divided into iron bolts and stainless steel bolts according to their materials.
In terms of iron, it is classified by grade, with the common ones being 4.8, 8.8, and 12.9.
Stainless steel is classified by material as SUS201, SUS304, and SUS316 bolts.
A complete set of hexagonal bolts consists of a bolt head, a nut, and a flat washer
Hexagonal head bolt, also known as hex head bolt (partially threaded) - c hex head bolt (fully threaded) - c grade, also known as hex head bolt (rough) hex head bolt, black iron screw.
The commonly used standards are: sh3404, hg20613, hg20634, etc.
Hexagonal head bolt (referred to as hexagonal bolt) consists of a head and a threaded rod (<external threaded bolt), with the threaded rod equipped with a nut, used to tighten two parts with through holes.
This type of connection structure is called bolt connection.
If the nut and bolt rotate, the two parts can be separated, so the bolt connection is a detachable connection.
The comprehensive performance grades of bolt materials used for connecting steel structures are divided into more than 10 grades, including 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, etc. Among them, grade 8.8 and above bolts made of low-carbon alloy steel or medium carbon steel and subjected to relevant heat treatment (quenching, tempering) are generally referred to as high-strength bolts, while the rest are commonly referred to as ordinary bolts.
The bolt performance grade symbol consists of two parts of numbers, representing the nominal tensile strength value and yield ratio of the bolt material.