What surface treatment is applied to these bolts?

The surface is treated with blackening to form a dense oxide film, improving corrosion resistance.

What are the common specifications and sizes?

Common specifications include M2, M2.5, M3, M4, M5, M6, M8, M10, and M12, with lengths ranging from a few millimeters to tens of millimeters.

Where are these products mainly used?

They are widely used in mechanical equipment, furniture manufacturing, electronic devices, and construction engineering.

8.8 Grade High Strength Black Hexagon Socket Bolts Hexagon Socket Head Cup Screws

Name: 8.8 Grade High Strength Black Hexagon Socket Bolts Hexagon Socket Head Cup Screws
Brand: Hebei Tengyun New Materials Co., Ltd
SKU: 2093050952

Hebei, ChinaHebei Tengyun New Materials Co., Ltd

US$0.10

1 Piece

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Model NO.

1-1

Groove

Hexagon

Connection

Common Bolt

Head Style

Round

Standard

DIN

Grade

8.8

Surface Treatment

Black

Use

Fastening Connection

Thread Type

Half Thread, Full Thread

Applicable Industries

Construction, Manufacturing

Transport Package

Container

Specification

1-30

Trademark

Huilin

Origin

Handan, Hebei

HS Code

0101101010

Production Capacity

50000

Key features

High Strength Grade: Made of carbon steel with heat treatment, offering strength grades 8.8, 10.9, and 12.9.

Corrosion Resistant: Blackening surface treatment forms a dense oxide film for long-term use in harsh environments.

Customizable Options: Supports full customization, minor customization, and flexible options based on samples or designs.

Versatile Applications: Widely used in mechanical equipment, furniture, electronics, and construction engineering.

Efficient Installation: Inner hexagon design allows easy tightening with wrenches or electric tools for improved efficiency.

Wide Specification Range: Available in sizes M2 to M12 with various lengths to meet diverse occasion needs.

Strict Quality Control: 100% visual and function inspection of finished products by dedicated QA/QC inspectors.

Reliable Manufacturer: Established in 2018 with 7 production lines and a 5000 sqm plant area in Hebei, China.

Company profile

R&D CapabilitiesProduction Process VisualizationQuality AssuranceHigh Repeat Buyers Choice

Hebei Tengyun New Materials Co., Ltd

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.68h

AI-Powered supplier vetting

SummaryThe supplier is a professional technology provider with strong R&D and design services capabilities, offering comprehensive customization options. They have been exporting for only one year and lack certain operational capacities like overseas warehousing and inventory management. Their financial data is up-to-date, and they have conducted fire drills and environmental assessments, suggesting a commitment to sustainable practices. However, the supplier does not have a standard procedure for outsourced manufacturing or ongoing volume reconciliation.

Supplier typeThe supplier is a combined type company, indicating it may integrate various business functions.

Financial creditThe supplier's financial data is current, covering the past three years, which suggests stable financial credibility.

R&D capabilityThe supplier demonstrates strong R&D capabilities but lacks SDK availability, indicating some limitations in innovation support.

Customization capabilityThe supplier offers extensive customization options, including full and flexible customization from samples or designs.