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Machine Bolt Mild Steel 4.8 Grade 8.8 Grade Hexagonal Bolt
US$0.30-3.00
2,000 Pieces
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableTechnics
Injection/Cold Pressing/Die Cast/Forge, Injection/Cold Pressing/Die Cast/ForgeStandard
IEC/BS/NEMA/DIN, IEC/BS/NEMA/DINModel NO.
M20X250Usage
Substation Fittings, Line FittingsType
Suspension/Tension/Protective/LinkingUsage
Substation Fittings, Line FittingsType
Suspension/Tension/Protective/LinkingMaterial
Carbon SteelConnection
Common BoltHead Style
HexagonalGrade
8.8Application
MachineryFinish
Hot GalvanizingGalvanizing
Hot-DIPTransport Package
Wooden Crate or CartonSpecification
As per drawingTrademark
COLMATEOrigin
Fuzhou, Fujian, ChinaProduction Capacity
100, 000PCS/MonthKey features
High Strength Grade: Available in 4.8 and 8.8 grade mild steel for robust performance.
Corrosion Resistant Finish: Hot DIP galvanizing ensures long-lasting protection against rust.
Standard Compliance: Manufactured in strict compliance with IEC, BS, ANSI, and DIN standards.
High Load Capacity: Features a minimum breaking load of 120kN for secure connections.
Flexible Manufacturing: Produced via injection, cold pressing, die casting, or forging techniques.
Custom Dimensions: Dimensions and specifications can be tailored to manufacturer drawings.
Versatile Application: Ideal for substation fittings, line fittings, and general machinery.
Hexagonal Head Design: Standard hexagonal head style ensures easy installation and tightening.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2008-02-01Nearest Port: FUZHOU, XIAMEN, NINGBOAverage Response Time: ≤24hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CIF
AI-Powered supplier vetting
SummaryFuzhou Colmate Electric Co., Ltd. is identified as a Chinese trading company and manufacturer/factory supplying electrical, lighting, insulation, and related products. Evidence indicates ISO 9001 and ANSI/ESD management-system certifications, product type-test reports and recognition for selected high-voltage products, eight production lines, stated output for lampholders and insulators, and export activity across multiple global regions. The supplier states reliable quality, punctual lead time, communication, and after-sales service, but these claims are not independently substantiated in the provided information. R&D engineer experience is stated at 11–20 years, while quality-control staffing is below five people. No direct evidence establishes customization capability or named customer cases. Financial assessment is limited because registered capital information is available but monetary figures are excluded from this analysis.
Supplier typeThe supplier is described as both a trading company and manufacturer/factory, while a separate company record identifies its nature as a trading company. A factory location is also provided in Fujian, indicating manufacturing-site information alongside trading operations.
CertificationsThe supplier reports ANSI/ESD and ISO 9001 management-system certifications and states that production is performed under ISO 9001. It also reports type-test reports and product recognition for insulators, surge arresters, and cutout fuses from Chinese testing laboratories.
After-Sales capabilityThe supplier explicitly claims sincere after-sale service, reliable quality guarantees, efficient communication, and continued efforts to provide excellent service. However, no service-process details, response standards, warranty terms, or independently verified service records are provided.
R&D capabilityThe supplier reports R&D engineers with 11–20 years of total experience and has obtained product testing and recognition for several high-voltage products. This supports technical development experience, but no evidence describes proprietary designs, patents, new-product development, or measurable innovation outcomes.
Production capacityProduction evidence includes eight production lines, stated output of 6,000,000 lampholder pieces and 4,000 tons of insulators, a factory location, and equipment described as new. The supplier reports off-peak lead time within 15 workdays but peak-season fulfillment of 2–3 months; quality-control staffing is below five people.
Product Q&A
Q:What is the material of the bolt?
A:
The bolt is made of HDG (Hot Dip Galvanized) mild steel.
Q:What standards does the product comply with?
A:
It complies with IEC, BS, ANSI, and DIN standards.
Q:What is the minimum breaking load?
A:
The minimum breaking load is 120kN.
Q:Can the dimensions be customized?
A:
Yes, dimensions and specifications are available as per manufacturer drawings.
Q:What are the available grades?
A:
The product is available in 4.8 Grade and 8.8 Grade.
Send Inquiry
*To:
Fuzhou Colmate Electric Co., Ltd.
Fuzhou Colmate Electric Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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