Which industries use these bolts?

They are widely used in automobiles, construction machinery, sheet metal enclosures, furniture, and railway transportation.

What are the payment terms?

We accept T/T, LC, and D/P as payment methods.

What standards do these bolts meet?

They comply with GB/T 29.2, GB/T 5787/5789, DIN 6921, ISO 15072, and JIS B1189 standards.

Carbon Steel Hot Galvanizing Hexagonal Concave Brain Bolt Kit for Construction

Name: Carbon Steel Hot Galvanizing Hexagonal Concave Brain Bolt Kit for Construction
Brand: Handan Jiangu New Material Technology Co., Ltd.
SKU: 2159413582

Hebei, ChinaHandan Jiangu New Material Technology Co., Ltd.

US$0.08

10,000 Pieces

Product specifications

bolt

10*20

10*30

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

8*10

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, GB

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Hot Galvanizing

1use

Fixation of Mechanical Equipment

2use

Home Decoration and Daily Installation

3use

Transportation and Infrastructure

4use

Electronics and Home Appliances

5use

Pipes and Facilities

Transport Package

Carton Pallet

Specification

30*30*15

Origin

China

HS Code

7318150000

Production Capacity

150 Ton by The Month

Key features

Double Drive Anti-Slip: Combines hexagon wrench and internal groove for stable torque transmission.

Low-Profile Design: Head height is 15% to 30% lower than flat head for narrow installation.

Strong Anti-Loosening: Integrated flange disperses stress to prevent vibration loosening.

High Material Utilization: Cold forging one-time forming reduces edge cutting and lowers cost.

Multiple Material Options: Available in Carbon Steel (4.8/8.8/10.9 grade) and Stainless Steel (304/316).

Comprehensive Surface Treatment: Options include blackening, zinc plating, Dacromet coating, and hot-dip galvanizing.

Wide Size Range: Thread sizes M3 to M16 and lengths 6 to 100mm available.

Versatile Application: Suitable for automobiles, construction machinery, furniture, and wind power.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityFast DeliveryCustomization from Samples

Handan Jiangu New Material Technology Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2025-03-01Nearest Port: tianjin, qingdao, guangzhouAverage Response Time: ≤4.36hTerms of Payment: T/T, LC, D/PInternational Commercial Terms(Incoterms): FOB

About Our Factory & Business Background

AddressSouth Mingyang Village, Linmingguan Town, Yongnian District, Handan, Hebei, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsStainless Steel Bolt, Hexagonal Bolt, Nut, Photovoltaic Bolt, Eye Bolt, U-Bolt, Chemical Anchor Bolt, Wood Screws

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Product Q&A

Q:What are the available material grades?

We offer Carbon Steel in 4.8, 8.8, and 10.9 grades, as well as Stainless Steel A2-70 (304) and A4-70 (316).

Q:What is the size range for these bolts?

The bolts are available with thread sizes from M3 to M16 and lengths ranging from 6mm to 100mm.

Q:How does the double drive design work?

It features an external hexagon for wrenches and an internal cross or hexagonal groove for screwdrivers, ensuring stable torque and anti-slip performance.

Q:What surface treatments are available?

We provide blackening, blue-white zinc, colored zinc, Dacromet coating, and hot-dip galvanizing options.

Q:What are the lead times for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.