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 with guaranteed quality.

How to custom-make (OEM/ODM)?

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

Which mode of transport would be better?

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

H. D. G 5/16"*80 A325 Heavy Hex Bolt Unc Unf Galvanized Bolt

Name: H. D. G 5/16"*80 A325 Heavy Hex Bolt Unc Unf Galvanized Bolt
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 2062503682

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

US$0.10

2,000-2,999 Pieces

US$0.08

3,000-3,999 Pieces

US$0.06

4,000-4,999 Pieces

US$0.05

5,000-9,999 Pieces

US$0.03

10,000+ Pieces

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

A325

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Hot Galvanizing

Other Product Name

Hex Head Screw / Hh Bolt / Outer Hex Head Bolt

Dimensiong Standard

ASME B 18.2.6

Equivalent

AISI B 18.2.6

Thread

Full Thread/Half Thread

Diameters

3/8"~3"

Length

Custom

Color

Silver

Measure System

Imperial

Measure Unit

Inch

Quality

Good

Head Mark

G&T or OEM

Company Type

Factory / Direct Manufactory

Stock

Plenty

After-Sale Service

Available

Delivery Time

30 Days in Usual

Transport Package

Carton or Wooden Boxes

Specification

25mm*30mm*50mm

Trademark

G&T

Origin

China

HS Code

7318159001

Production Capacity

300000 Pieces/Month

Key features

Custom Length Options: Length is fully customizable to meet specific project requirements.

High Strength Material: Manufactured from Carbon Steel Grade ASTM A490 for structural applications.

Hot Galvanizing Finish: Silver hot galvanized finish ensures improved durability and corrosion resistance.

Wide Standard Compliance: Complies with DIN, ANSI, GB, JIS, BSW, GOST, ASME B18.2.6, and ISO standards.

OEM/ODM Customization: Full customization available from drawings, samples, or designs with professional advice.

Fast Delivery Time: Standard parts delivered in 7-15 days; non-standard parts in 15-25 days.

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

ISO Quality Certified: Strict quality control adhering to ISO9001:2008 and ISO9001:2015 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: ≤1.78h

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 be their first choice as a fasteners supplier. Our mission includes professional customer service and innovation in technology. We offer fasteners with reasonable quality and price, provide 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. 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, what should I do?

You can send 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. Alternatively, you can send us 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% payment is required with the order. For production, 30% is paid as a deposit by T/T before production arrangement, and the balance is paid before shipment.