Bolt

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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ANSI/ASME A490M Hot Dip Galvanized Metric Heavy Hexagon Bolt with Nut

ANSI/ASME A490M Hot Dip Galvanized Metric Heavy Hexagon Bolt with Nut

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Production technology: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly
Sales Models: Wholesale
Min Order: 1000pcs
Sample: Free sample
Certificate: ISO 9001:2015
Delivery time:7-30 Days

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Carbon Steel ASTM A325 HDG Heavy Hex Head Structural Bolt And Nut

Carbon Steel ASTM A325 HDG Heavy Hex Head Structural Bolt And Nut

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Production technology: auto, mechanical, construction, power, railway, household electrical appliances,solar mounting and chemical Industry
Package: Carton+Pallet
Min Order: 500pcs
Sample: Free sample
Certificate: ISO 9001:2015
Standard: DIN,ASTM/ASME,JIS,EN,ISO,AS,GB

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Grade 4.8/6.8/8.8 Carbon Steel Zinc Plated L Type Bolts

Grade 4.8/6.8/8.8 Carbon Steel Zinc Plated L Type Bolts

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Package: Carton+Pallet
Min Order: 1000pcs
standard:grade 4.8/5.8/6.8/8.8/10.9/12.0
Sample: Free sample
Certificate: ISO 9001:2015
Standard: DIN,ASTM/ASME,JIS,EN,ISO,AS,GB
surface finish: Zinc,HDG,phosphorization,Black,Geomet,Dacroment,Nickel plated

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DIN961 Carbon Steel Hot galvanized Gr4.8 8.8 Set Screws

DIN961 Carbon Steel Hot galvanized Gr4.8 8.8 Set Screws

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DIN961 Carbon Steel Hot galvanized Gr4.8 8.8 Set Screws
Length:As per require
Place of Origin:Zhejiang, China (Mainland)
OEM:As customers' drawing
Shipment:5-20Days

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Stainless Steel SS304 SS316 Hex Head Set Screws (DIN7990)

Stainless Steel SS304 SS316 Hex Head Set Screws (DIN7990)

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Stainless Steel SS304 SS316 Hex Head Set Screws (DIN7990)
Length:As per require
Sample: Free sample
OEM:As customers' drawing
Model Number:M4-M64

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Black zinc plated Gr4.8 8.8 Hex Head Set Screws (DIN7990 DIN558)

Black zinc plated Gr4.8 8.8 Hex Head Set Screws (DIN7990 DIN558)

Buy Black zinc plated Gr4.8 8.8 Hex Head Set Screws (DIN7990 DIN558) which is of high quality directly with low price.
Black zinc plated Gr4.8 8.8 Hex Head Set Screws (DIN7990 DIN558)
Length:As per require
Sample: Free
OEM:As customers' drawing
Model Number:M3-M64

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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.
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