What is your delivery time?

Standard parts take 7-15 days, while non-standard parts take 15-25 days.

How to custom-made (OEM/ODM)?

Send us a new product drawing or sample, and we can custom-make the hardware as required while providing professional advice to maximize performance.

Which mode of transport would be better?

In general, sea freight is recommended as production is heavy, but we respect your views on other transportation modes as well.

Grade8 Black Oxide Hex Head Bolt for Construction Industry

Name: High Tensile Heavy Duty Half Thread A307 /A490 /Grade8 Black Oxide Hex Head Bolt for Construction Industry
Brand: Shanghai G&T Industry Co., Ltd.
SKU: 907336145

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

US$0.05

1,000-9,999 Pieces

US$0.04

10,000-99,999 Pieces

US$0.03

100,000+ Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

ASME B18.4.6, ASTM A18.2.1

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

4.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Black

Product Type

Hex Head Bolt

OEM

Welcome

Sample

Offered

MOQ

1 PC for Big Size, 10-1000PC for Small Size

Material1

A490 A307 A325

Material2

32750 32760 2205 2507

Material3

C276 Hastelloy

Transport Package

Plastic Bag+ Carton+Wood Pallet

Specification

M3-M160

Trademark

G&T

Origin

Shanghai, China

Production Capacity

500 Tons/Month

Key features

Comprehensive Customization: Full customization, minor customization, and flexible customization available from samples or designs.

Strict Quality Control: Processes strictly adhere to ISO9001:2008 procedures with strong technology support.

High Precision Capability: Can strictly follow tolerance on drawings and provide high precision parts.

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

Wide Surface Options: Available in Dacromet, geomet, hdg, xylan, zinc nickle, zinc, and black oxide.

Flexible Payment Terms: Accepts T/T, LC, D/P, PayPal, Western Union, and small-amount payments.

Low MOQ Requirement: Minimum Order Quantity is as low as 1 piece.

Global Shipping Options: Sea transport recommended for heavy production; other modes respected.

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.