What is your delivery time?

Standard parts take 7-15 days. Non-standard parts take 15-25 days. We make delivery as soon as possible while guaranteeing quality.

How to custom-made (OEM/ODM)?

If you have a new product drawing or a sample, please send it to us, and we can custom-make the hardware as required. We also provide professional advice to maximize performance.

Which mode of transport would be better?

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

M20 ASTM A307 Grade B Bolt C/W Hex Nut ASTM A37

Name: M20 ASTM A307 Grade B Bolt C/W Hex Nut ASTM A37
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 1984206905

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

US$1.00

10-999 Pieces

US$0.10

1,000-9,999 Pieces

US$0.01

10,000+ Pieces

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

ASTM A307 Grade B

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black Oxide, Zinc Plated, HDG, PTFE, etc.

Transport Package

Plastic Bag+ Carton+Wood Pallet

Specification

M3-M100, 1/4-2"

Trademark

G&T

Origin

Shanghai, China

HS Code

73181510

Production Capacity

500 Tons/Month

Key features

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

Wide Standard Compliance: Meets DIN, ANSI, GB, JIS, BSW, GOST, ASME, and ISO standards.

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

Flexible Customization: Full customization available from samples, designs, or drawings.

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

ISO9001 Quality Assurance: All processes adhere to ISO9001:2008 procedures with strict quality control.

Competitive Pricing: Offers reasonable prices with one-stop shopping and timely delivery.

Free Sample Service: Provides free samples for new model development and testing.

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: ≤1.68h

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. Our vision is to build successful relations with partners, and our mission is professional customer service and innovation in technology. We offer reasonable quality and price, market sales suggestions, and welcome your ideas.

Q:How is quality ensured?

All our processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from producing to delivery and strong technology support with managers familiar with product quality and modern management concepts.

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

You can send pictures, photos, and drawings via email for us to check. We develop new models every month. Alternatively, you can 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 and meet high precision?

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

Q:How should I order and make payment?

Payment is by T/T. For samples, 100% is paid with the order. For production, 30% is paid as a deposit by T/T before production arrangement, and the balance is paid before shipment.