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 the guarantee of 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-made the hardware as your required. We will also provide our professional advice of the products to make the design to be more realized and maximize the performance.

Which mode of transport would be better?

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

ASTM A325 A325m HDG Heavy Hex Bolt and Nut

Name: ASTM A325 A325m HDG Heavy Hex Bolt and Nut
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 2057688835

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.

DIN ASME

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN

Grade

4.8 8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Blue-White Zinc Plated

Size

M16 - M100 1/4" - 4"

Surface

Black Zinc HDG Silver

Coating

Dacromet Geomet

Package

Wooden Case, Pallet, Cartons

Head Mark

Customize, A490 A490m

Thread Length

Full Thread, Partial Thread

Pitch

Unc Unf

Length

Customize, 6", 7", 9", 10"

Order Quantity

Transport Package

Plastic Bag+ Carton+Wood Pallet

Specification

M3-M100

Trademark

G&T

Origin

Shanghai, China

Production Capacity

500 Tons/Month

Key features

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

Multiple Surface Finishes: Options include Zinc Plated, HDG, Dacromet, Geomet, and more.

Comprehensive Standards: Meets ASME, ANSI, DIN, ISO, and ASTM specifications.

Customizable Sizes: Sizes range from M16 to M100 and 1/4" to 4".

Flexible Thread Types: Offering Full Thread, Partial Thread, UNC, and UNF options.

OEM/ODM Services: Custom manufacturing available based on drawings or samples.

High Precision Capability: Strictly follow tolerance on drawings for high precision parts.

ISO 9001 Certified: Quality ensured through strict ISO9001:2008 procedures.

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. We offer professional customer service, innovation in technology, reasonable quality and price, and market sales suggestions.

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 has strong technology support and a group of managers familiar with product quality and modern management concepts.

Q:If you cannot find the product you need on our website, how do you handle it?

You can send the pictures/photos and drawings of the products you need by email, and 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 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% payment with the order. For production, 30% paid as a deposit by T/T before production arrangement, and the balance to be paid before shipment.