What is your delivery time?

Standard parts: 7-15 days. Non-standard parts: 15-25 days. We will make the delivery as soon as possible with guaranteed quality.

How to custom-made (OEM/ODM)?

Send us your new product drawing or sample. We will custom-make the hardware as required and provide professional advice to maximize performance.

Which mode of transport would be better?

In general, since production is heavy, we advise delivery by sea. However, we also respect your views on other transportation methods.

ASTM A325 A325m Heavy Hex Structural Bolt

Name: ASTM A325 A325m Heavy Hex Structural Bolt
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 1974249485

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

US$0.01-0.10

1,000 Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

ASTM A307 Hex Bolt

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

8.8

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

Customizable Sizes: Available in M6, M8, M10, M12, M20, M48, and 1/2' diameters.

Multiple Coating Options: Plain, Black Oxide, Zinc Plated (Clear/Blue/Yellow/Black), H.D.G, Nickel, Chrome.

High Precision OEM/ODM: Strictly follow drawing tolerances for high-precision custom parts.

ISO9001 Quality Control: Strict quality control from production to delivery adhering to ISO9001:2008.

Fast Delivery: Standard parts: 7-15 days; Non-standard parts: 15-25 days.

Wide Application Range: Suitable for Structural Steel, Oil&Gas, Wind Energy, and Automobile industries.

Flexible Payment Terms: Accept T/T, L/C, West Union, and PayPal for secure transactions.

Free Samples Available: Provide samples for quality verification before bulk production.

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: ≤1.80h

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 supplying quality fasteners while minimizing costs. Our mission is professional customer service and technological innovation.

Q:How is quality ensured?

All processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery with strong technology support.

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

You can send pictures, photos, or drawings by email. We will check if we have them. Alternatively, send samples by DHL/TNT, and we can develop a new model especially for you.

Q:Can you strictly follow the tolerance on the drawing?

Yes, we can. We provide high precision parts and make the parts exactly as your drawing.

Q:How should I order and make payment?

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