What's your Delivery Time?

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

How to Custom-made (OEM/ODM)

If you have a new product drawing or a sample, please send to us, and we can custom-made the hardware as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Which mode of transport would be better?

In general, the production are heavy, we advice to make delivery by sea, Also we respect your views of other transportation as well.

China M20 ASTM A325 A490 A325m A490m Heavy Hex Bolt Hexagon Bolt ASTM A325

Name: China M20 ASTM A325 A490 A325m A490m Heavy Hex Bolt Hexagon Bolt ASTM A325
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 2098382085

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

US$0.01-0.20

500 Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

A307A A307b

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Length

<800mm or 30"

Transport Package

Plastic Bag+ Carton+Wood Pallet

Specification

M4-M64

Trademark

G&T

Origin

Shanghai, China

Production Capacity

500 Tons/Month

Key features

Comprehensive Material Options: Available in Carbon Steel, Alloy Steel, Stainless Steel, and Brass.

Wide Range of Standards: Meets ASME/ANSI, DIN, ISO, and ASTM standards including A325 and A490.

Extensive Finish Choices: Options include Black Oxide, Zinc Plated, H.D.G, Nickel, Chrome, and PTFE.

High Precision Customization: Capable of strictly following drawing tolerances for high precision parts.

Flexible Customization Services: OEM/ODM available with drawings, samples, or design requirements.

ISO9001 Quality Assurance: Strict quality control processes adhering to ISO9001:2008 procedures.

Fast Delivery for Standard Parts: Standard parts delivered within 7-15 days; non-standard within 15-25 days.

Free Samples Available: Samples provided free of charge for new model development.

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?

To provide our customers with first-class services in the supply of quality fasteners minimizing costs. We wish to build successful relations with our partners and be their first choice as an fasteners supplier. Our mission is professional customer service, and innovation in technology. Further more, we do not only offer you fasteners with more reasonable quality and price than your expectations, but also would like to be your friend and to provide you market sales suggestion for your reference,

Q:How is quality ensured?

All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery.Our company had strong technology support, We have cultivated a group of managers who are familiar with product quality , good at modern concept of management.

Q:If you can not find on our website the product you need how to do?

You can send the pictures/photos and drawings of the products you need by email , we will check if we have them. We develop new models every month, Or you can send us samples by DHL/TNT, then we can develop the new model especially for you.

Q:Can You Strictly Follow The Tolerance on The Drawing And Meet The High Precision?

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

Q:How should I order and make payment?

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