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High quality Bolt is offered by China manufacturer Gangtong Zheli. A bolt is a type of fastener that comprises a head and a threaded shaft. Bolts are used in conjunction with nuts to securely join and connect two components with through holes. They come in various head shapes, including hexagonal, round, square, and countersunk heads. Examples of bolt types include hexagonal bolts, carriage bolts, hexagon socket bolts, T-bolts, flange bolts, countersunk bolts, and square head bolts.


Bolts are categorized into different performance grades, based on the material used, with carbon steel and alloy steel being the most common. These grades include 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9. Bolts with grades of 8.8 and higher are considered high-strength bolts and are made from low-carbon alloy steel or medium carbon steel, which undergoes heat treatment (quenching and tempering). Bolts with lower grades are generally referred to as ordinary bolts. The performance grade of a bolt is indicated by a two-number label, representing the nominal tensile strength value and the yield ratio of the bolt material.


Stainless steel bolts are classified into various groups, such as A1, A2, A3, A4, and A5, each with its own subgrades (e.g., A1-50, A2-70). The first letter and number denote the stainless steel group, while the second and third numbers represent one-tenth of the tensile strength.

These specifications and classifications help users select the appropriate bolt for their specific applications, ensuring the bolts meet the required strength and performance standards.


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Hot Dip Galvanized HDG High Tensile Hex Cap Screw

Hot Dip Galvanized HDG High Tensile Hex Cap Screw

Gangtong Zheli is Hot Dip Galvanized HDG High Tensile Hex Cap Screw manufacturers and suppliers in China who can wholesale it.
Hot Dip Galvanized Full / Partially Threaded Hex Head Bolts , HDG Hex Cap Screw With Wholesale Price

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DIN912 Stainless Steel 304 Cap Head Hex Socket Bolt

DIN912 Stainless Steel 304 Cap Head Hex Socket Bolt

Gangtong Zheli is DIN912 Stainless Steel 304 Cap Head Hex Socket Bolt manufacturers and suppliers in China who can wholesale it.
Production technology: Cold forging and hot forging, Lathe
Min Order: 500KG each size
Sample: Free sample
Certificate: MTC, Test report
Export country: Asia, Middle East, Europe, America and so on

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DIN603 Stainless Steel A2-70 SS304 SS316 Carriage Bolt Mushroom Round Head With Square Neck Bolts

DIN603 Stainless Steel A2-70 SS304 SS316 Carriage Bolt Mushroom Round Head With Square Neck Bolts

Gangtong Zheli is DIN603 Stainless Steel A2-70 SS304 SS316 Carriage Bolt Mushroom Round Head With Square Neck Bolts manufacturers and suppliers in China who can wholesale it.
T DIN603 Stainless Steel A2-70 SS304 SS316 Carriage Bolt , Mushroom Round Head With Square Neck Bolts

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DIN 186 Grade 8.8 High Quality White Zinc Plated T Head Bolts

DIN 186 Grade 8.8 High Quality White Zinc Plated T Head Bolts

Gangtong Zheli is DIN 186 Grade 8.8 High Quality White Zinc Plated T Head Bolts manufacturers and suppliers in China who can wholesale it.

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M12 Grade 8.8 High Tensile White Zinc Plated Square Head Bolts

M12 Grade 8.8 High Tensile White Zinc Plated Square Head Bolts

Gangtong Zheli is M12 Grade 8.8 High Tensile White Zinc Plated Square Head Bolts manufacturers and suppliers in China who can wholesale it.

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DIN316 Grade 4.8 Carbon Steel Blue Zinc Plated Butterfly Bolt Wing Bolt

DIN316 Grade 4.8 Carbon Steel Blue Zinc Plated Butterfly Bolt Wing Bolt

Gangtong Zheli is DIN316 Grade 4.8 Carbon Steel Blue Zinc Plated Butterfly Bolt Wing Bolt manufacturers and suppliers in China who can wholesale it.
DIN931 Steel Zinc Plated Half Threaded Hex Head Bolts , Partially Threaded Metric Bolts , Hex Head Screws

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Gangtong Zheli Fasteners is a professional China Bolt manufacturers and suppliers which provide customized service of Bolt. We have own factory, can provide you with a satisfactory price.. Welcome to buy high quality products from us. Let us cooperate with each other to create a better future and mutual benefit.