What is the lead time for production?

The average lead time is 1-3 months for both peak and off-peak seasons.

What sizes are available for the tunnel bolts?

Sizes range from M1.6 to M20, with specific tunnel bolt diameters including M20, M24, M27, and M30.

Wholesale Metro Bolt Connecting Construction Bolt Subway Curved Tunnel Bolt Galvanized

Name: Wholesale Metro Bolt Connecting Construction Bolt Subway Curved Tunnel Bolt Galvanized
Brand: Maanshan Kingrail Technology Co., Ltd.
SKU: 2077238042

Anhui, ChinaMaanshan Kingrail Technology Co., Ltd.

US$0.40-0.60

100 Pieces

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

1 Year

Model NO.

Wholesale Metro Bolt

Customized

Certification

ISO14001, ISO9001

Material

Q235,10b21,Stainless Steel

Standard

GB/T 1346,GB,JIS,ANSI,DIN,BS

Processing

Hot Rolling

Surface

Bronze,Zinc,Rainbow,Plain,Nickle,Passivated,Electr

Production

OEM ODM Custom

Sizes

M1.6,M2,M2.5,M3,M3.5,M4,M5,M6,M8,M10-M20

Head Type

Hexaonal Head/Double End Head

Drive Type

Slotted(Socket),Square,Pz,Triangle,H,Torx(

Heat Treatment

Tempering,Hardening,Stress Relieving,etc.

Application

Railway,Subway,Tunnel Building

Grade

4.8,5.6,8.8.10.9,12.9

Quality Control

Inspection 100%

Coating

Plain, Zinc Plated, Hot DIP Galvanized.

Thread

Half or Full Thread

Material 2

Stainlesss Steel, Carbon Steel, Q235

Transport Package

Wooden Box/Pallet

Specification

Tunnle Segement Bolt

Trademark

Kingrail Parts

Origin

China

HS Code

86080090

Production Capacity

50000PCS/Year

Key features

Customized Manufacturing: Available in various grades, sizes, load capacities, and materials per customer requirements.

Comprehensive Coating Options: Includes Zinc Galvanised, Hot dip galvanized, Dacromate coating, and more for corrosion resistance.

Wide Material Selection: Manufactured from Mild Steel, High Tensile, Stainless Steel (304, 316), and Carbon Steel.

ISO and CRCC Certified: Both factories hold ISO and CRCC certifications ensuring high quality and reliability.

20+ Years Industry Experience: Over 20 years specializing in railway fasteners with global market presence.

1 Year Warranty Coverage: Provides a 1-year warranty for all mechanical defects and product quality.

Full Thread Options: Available in both Half Thread and Full Thread configurations for diverse applications.

Global Market Service: Serving demanding markets worldwide including USA, Europe, South America, and Asia.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Maanshan Kingrail Technology Co., Ltd.

Anhui, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.91h

AI-Powered supplier vetting

SummaryThe supplier is a trading company with a primary focus on exporting, contributing 71% to 90% of total sales. It holds ISO 9000 and ISO 9001 certifications, indicating a commitment to quality management. However, the supplier has limited R&D capabilities with only one engineer and lacks SDK availability. Its production capabilities include wheels, track materials, and metal products. The supplier does not maintain overseas warehouses or showrooms and lacks the ability to handle overseas services independently. Customization services are robust, offering various levels of customization, and the supplier provides OEM and ODM services.

CertificationsThe supplier holds ISO 9000 and ISO 9001 certifications, indicating adherence to recognized quality management standards.

R&D capabilityThe supplier has limited R&D capability with only one engineer and no SDK availability, and it did not release new products in the past year.

Production capacityThe supplier has a defined production capacity for wheels, track materials, and metal products, but lacks inventory management and overseas facilities.

Customization capabilityThe supplier offers comprehensive customization services, including OEM and ODM services.