What is your delivery time?

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

How to custom-made (OEM/ODM)?

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

Which mode of transport is better?

Generally, we advise sea delivery due to the heavy weight of production. However, we respect your views on other transportation methods as well.

All Size Hardware HDG Galvanized Carbon Steel ASTM A307 Grade 8.8 Guard Rail Hex Bolts

Name: All Size Hardware HDG Galvanized Carbon Steel ASTM A307 Grade 8.8 Guard Rail Hex Bolts
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 2033311395

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 Customization Range: Custom sizes from M16-M100, various head marks, thread types, and surface finishes like HDG or Dacromet.

High Precision OEM/ODM: Strictly follow drawing tolerances for high precision parts; custom-made based on samples or designs.

Strict Quality Control: ISO9001:2008/2015 certified processes with strict QC from production to delivery and strong tech support.

Competitive Pricing: One-stop shopping with competitive prices, high quality, and timely delivery for global markets.

Flexible Payment Terms: Supports T/T, L/C, D/A, D/P, Western Union, and PayPal for convenient transactions.

Fast Delivery Time: Standard parts: 7-15 days; Non-standard parts: 15-25 days; expedited delivery guaranteed.

Extensive Material Options: Available in Carbon Steel, Alloy Steel, Stainless Steel, and Brass with various grades and finishes.

Professional Industry Experience: Over 10 years experience in fasteners industry with proficient knowledge of DIN/ASME/ASTM standards.

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: ≤1.82h

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, aiming to be your preferred supplier and friend.

Q:How is quality ensured?

All processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from production to delivery, supported by strong technology and experienced management familiar with modern quality concepts.

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

You can send pictures, photos, or drawings via email for us to check. We develop new models monthly. Alternatively, send samples by DHL/TNT, and we will develop a new model specifically for you.

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

Yes, we can. We provide high precision parts and manufacture them exactly according to your drawing.

Q:How should I order and make payment?

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