What finishes can be applied to the bolts?

Finishes include Plain, Zinc Plated (Clear/Blue/Yellow/Black), Black Oxide, Nickel, Chrome, and Hot Dip Galvanizing.

What is the delivery time?

Standard delivery is 30 days after payment. OEM samples take about 10 days.

What standards do your bolts comply with?

Our bolts comply with DIN, ANSI/ASME, BS, GB, JIS, ISO, and non-standard customer requests.

Hot Sale Hex Bolt High Strength Screw Hot Galvanized Hexagon Bolt

Name: Hot Sale Hex Bolt High Strength Screw Hot Galvanized Hexagon Bolt
Brand: Weifang Shengao Machinery Co., Ltd.
SKU: 694434062

Shandong, ChinaWeifang Shengao Machinery Co., Ltd.

US$0.19-3.19

100 Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

SA-DXLS

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Chemical Industry, Environmental, Building

Finish

Hot Galvanizing

Name

Bolt

Material Type

Steel: 35CrMoA, 35CrMo, 30CrMoA, 30CrMo, 42cr2moa,

Place of Origin

Shandong, China

Thread

Unc,Unf,Uef,Un,Uns

Quality Stardard

ISO, DIN, ANSI, JIS, BS and Non-Standard

R & D Service

Design and Drawing

Dimension

Customized

Unique

15 Years of Manufacturing

OEM and ODM

100% with Drawings and Samples

Delivery Time

30 Days After Payment

OEM Sample

About 10 Days

MOQ

2000 Pieces for Trial Order

OEM Package

Anti-Rust Package System

Inner Package

Carton Box/Plastic Bag

Transport Package

Plywood Box

Specification

SGS

Trademark

Shengao

Origin

Weifang City, Shandong Province, China

HS Code

8207909000

Production Capacity

500ton/Month

Key features

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

High Strength Grades: Offers grades from 4.8 to 12.9, including SAE Gr2, Gr5, and Gr8 for various stress levels.

Custom Dimensions: Diameter 2-48mm, Length 10-300mm, with full customization based on drawings.

Multiple Finish Options: Choices include Zinc Plated, Hot Dip Galvanized, Black Oxide, Nickel, Chrome, and Plain.

Strict Quality Control: Equipped with 3D detector, projector, and hardness tester for precise inspection.

2-Year Quality Guarantee: Comprehensive warranty coverage for mechanical defects after shipment.

Fast Delivery: Standard delivery within 30 days; OEM samples available in about 10 days.

15 Years Experience: Proficient in IFI standards with extensive expertise in the fasteners industry.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Weifang Shengao Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.29h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.

Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.

After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.

Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.