What is your delivery time?

Standard parts take 7-15 days, while non-standard parts take 15-25 days. We aim to make delivery as soon as possible while guaranteeing quality.

How to custom-made (OEM/ODM)?

Send us a new product drawing or sample, and we can custom-make the hardware as required while providing professional advice to maximize performance.

Which mode of transport would be better?

In general, we advise sea delivery for heavy production, but we respect your views on other transportation methods as well.

Structural ASTM A449 Dacromet Heavy Hex Bolt

Name: Structural ASTM A449 Dacromet Heavy Hex Bolt
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 1912750321

Shanghai, ChinaShanghai G&T Industry Co., Ltd.

US$0.01-0.10

100 Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

ASTM A449 TYPE I Heavy Hex Bolt

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

12.9

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Blue-White Zinc Plated

Size

M6, M8, M10, M12, M20, M48

Coating

Plain,Black Oxide, Zinc Plated(Clear/Blue/Yellow/B

Diameter

M6, M8, M10, M12, M20, M48, 1/2"

Length

10, 20, 40, 60, 1"

Lead Time

15-60 Days

Sample

Accepted

Using

Right Hand Threads

Surface Treatment

Zinc Plated, Black Oxide, Copper Plating...

Thread

Full Threaded

Payment Term

Tt 50% Deposit

Area

Industry, Machine, Building

Production

Standard/Customized

Packing

Carton and Pallet

Shipping Method

Express, Air, Sea, Train

Head Type

Hex Head, Hex Socket Head, Flange Head

Transport Package

Plastic Bag+ Carton+Wood Pallet

Specification

1/4"-4", M4-M100

Trademark

G&T

Origin

Shanghai, China

Production Capacity

1000 Tons/Month

Key features

Wide Material Selection: Available in Carbon Steel, Alloy Steel, Stainless Steel, and Brass.

Extensive Size Range: Diameters from 1/4 inch to 4 inches (M4-M100) and lengths up to 800mm.

Diverse Surface Finishes: Options include Zinc Plated, Black Oxide, Dacromet, H.D.G, Nickel, and Chrome.

High Grade Strength: Meets ASTM A325, A490, A354, and A307 standards with Grade 12.9 options.

Customization Capability: Full customization available based on customer drawings, samples, or designs.

ISO Quality Certified: Manufacturing processes strictly adhere to ISO9001:2015 quality control procedures.

Flexible Payment Terms: Accepts T/T, L/C, Western Union, and PayPal with deposit options.

Global Shipping Options: Supports Express, Air, Sea, and Train shipping methods to worldwide markets.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceFast DeliveryManagement Certification

Shanghai G&T Industry Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.84h

AI-Powered supplier vetting

SummaryShanghai G&T Industry Co., Ltd. is identified as a limited trading company offering bolts, nuts, threaded rods, stud bolts, and customized fasteners. The supplier reports broad customization, ODM capability, new products launched during the past year, and OEM service for well-known brands. Stated annual productivity includes 6,000 tons of thread rods, 5,000 tons of bolts, 5,000 tons of nuts, 3,000 tons of washers, and 3,000 tons of stud bolts. Service procedures include documented supplier assessment, corrective and preventive actions, and customer complaint handling, with lead times within 15 workdays in both peak and off-season. However, the supplier has no overseas agents or branches, overseas warehouse, showroom, or inventory capability. Raw-material traceability, quality assurance status, outsourcing controls, and contract status are unknown. An audit by TUV Rheinland is recorded, but the audit type and evaluation result are not sufficiently interpretable from the provided values.

Supplier typeThe supplier is a limited company classified as a trading company, with a stated business scope covering metal materials, hardware, machinery, and related products. Its offered products are bolts, nuts, threaded rods, stud bolts, and customized fasteners, and it is not identified as part of a larger company group.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions and customer complaint handling. It has no overseas agents or branches, overseas warehouse, showroom, or in-stock service capability, which limits local and immediate after-sales support.

R&D capabilityThe supplier reports new products during the past year, ODM service, and multiple design-based customization options. It does not have an available SDK, but the available evidence supports product development and design capability.

Production capacityReported annual productivity is 6,000 tons of thread rods, 5,000 tons each of bolts and nuts, and 3,000 tons each of washers and stud bolts. Lead time is stated as within 15 workdays in both peak and off-season; however, the supplier also reports no inventory capability, while outsourcing procedures and manufacturing-capacity contracts remain unknown.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its product scope also expressly includes customized fasteners, and it reports ODM capability.

Product Q&A

Q:Why choose us?

We provide first-class services in the supply of quality fasteners minimizing costs, with a vision to build successful relations and a mission of professional customer service and innovation.

Q:How is quality ensured?

All processes strictly adhere to ISO9001:2008 procedures with strict quality control from producing to delivery, supported by experienced managers and strong technology.

Q:What if I cannot find the product I need on your website?

You can send pictures, photos, or drawings via email for us to check availability, or send samples by DHL/TNT for us to develop a new model specifically for you.

Q:Can you strictly follow the tolerance on the drawing and meet high precision?

Yes, we can provide high precision parts and manufacture them exactly according to your drawings.

Q:How should I order and make payment?

For samples, 100% payment with the order; for production, 30% deposit by T/T before arrangement, with the balance paid before shipment.