What certifications do the products have?

Our products are certified with ISO9001-2008, SGS, CTI, and RoHS.

What payment terms are accepted?

We accept T/T, L/C, PayPal, VTB, Western Union, and Money Gram.

What is the range of bolt sizes?

Product sizes cover M3 to M150, with lengths ranging from 5 millimeters to 12 meters.

High Strength Black Oxide A490 Hot DIP Galvanized HDG Heavy Hex Bolt

Name: High Strength Black Oxide A490 Hot DIP Galvanized HDG Heavy Hex Bolt
Brand: Shanghai Borui Metal Products Co., Ltd.
SKU: 2125587382

Shanghai, ChinaShanghai Borui Metal Products Co., Ltd.

US$0.04

1,000-9,999 Pieces

US$0.03

10,000-99,999 Pieces

US$0.02

100,000+ Pieces

Product specifications

Diameter

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Alloy Steel

Type

Hexagon Head

Model NO.

A490 Heavy Hex Bolt

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST, ASTM/En/Uns/Ifi/ASTM

Grade

ASTM A490 Type1/Type3

Application

Machinery, Chemical Industry, Environmental, Marine Hardware/Solar Energy/Fire Fighting/Fabrica

Finish

Black Oxide/HDG/Hot DIP Galvanized/Dacromet/Geomet

Thread

Unc/Unf

Measurement System

Metric(mm), Imperial(Inch)

Quality Control

100% Inspection

Sample

Sample Avaliable

Deliver Port

China

Delivery Time

30-35days

Service

OEM ODM

Transport Package

Carton+Pallet

Specification

M12-M36, 1/2"-1 1/2", Customer request

Trademark

Origin

China

HS Code

7318159090

Production Capacity

50000PCS/Month

Key features

Wide Material Selection: Carbon, Alloy, Stainless Steel, and Special Alloys like Monel and Inconel available.

Customizable Specifications: Diameter M12-M36, Metric/Imperial threads, and various standards (DIN, ANSI, ASTM) customizable.

Multiple Surface Finishes: Black Oxide, HDG, Dacromet, Geomet, Zinc Plated, and specialized anti-corrosion coatings.

OEM/ODM Service: Professional engineers provide OEM/ODM services based on customer drawings or samples.

Strict Quality Control: 100% inspection with advanced equipment including tensile testers and salt spray testers.

Certified Quality: Products certified under ISO9001-2008, SGS, CTI, and RoHS standards.

Fast Delivery: Large stock for standard sizes; delivery time 30-35 days for custom orders.

Versatile Applications: Suitable for machinery, marine, solar energy, fire fighting, and aerospace industries.

Company profile

High Repeat Buyers ChoiceMulti-language PioneerExperienced TeamExhibition Experience

Shanghai Borui Metal Products Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤2.54hTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is a Shanghai-based limited trading company with 41 employees, focused on fasteners and related metal, mechanical, plastic, rubber, electrical, and photovoltaic products. It offers sample-, design-, and full-customization services, as well as ODM and OEM services, and reports export sales of 71%–90%. In-stock service is available, but there is no overseas warehouse, showroom, agent, or branch. Financial records are identified for 2022–2024, but no financial values or performance conclusions are provided. Service-process evidence is weak: no written corrective/preventive-action or complaint-handling procedures or records are available, while quality-assurance status and fire-drill status are unknown. No certifications, customer cases, or production facilities are explicitly documented.

Supplier typeThe supplier is identified as a limited company and trading company, with 41 employees, no stated parent-group affiliation, and a Shanghai registered and physical address. Its stated product scope centers on fasteners and related industrial products.

After-Sales capabilityThe supplier has in-stock service capacity, but it has no overseas warehouse, showroom, overseas agent, or branch. More importantly, no written corrective/preventive-action procedures or records and no written customer-complaint procedures or records are available, indicating a documented after-sales process is not demonstrated.

R&D capabilityThe supplier lists research and development of metal products and hardware products, and offers ODM services. However, no SDK is available, and the information does not provide measurable R&D resources, patents, or development outcomes; the documented capability is therefore limited but present.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, and full customization, together with ODM and OEM services for popular brands. These statements provide direct evidence of broad customization and design-manufacturing service capability.

Product Q&A

Q:What materials are available for the bolts?

We offer Carbon Steel, Alloy Steel, Stainless Steel (SS304/316/etc.), and special materials like Monel, Inconel, and Hastelloy.

Q:Can the bolts be customized?

Yes, we support OEM/ODM services. Customization is available for thread type, measurement system, size, material, and surface finish based on customer requests.

Q:What are the available surface finishes?

Options include Black Oxide, Hot Dip Galvanized (HDG), Dacromet, Geomet, Zinc Plated, and various specialized anti-corrosion coatings.

Q:What is the minimum order quantity?

The minimum order quantity is 10 pieces.

Q:What is the delivery time?

Standard sizes are kept in large stock. For custom orders, the delivery time is typically 30-35 days.