Black Carriage Bolts Screws Round Head

Name: Black Carriage Bolts Screws Round Head
Brand: Yangzhou Hongniu Import and Export Co., Ltd
SKU: 2191653175

Jiangsu, ChinaYangzhou Hongniu Import and Export Co., Ltd

US$0.03

10,000-49,999 Pieces

US$0.02

50,000-99,999 Pieces

US$0.01

100,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Standard

DIN, ANSI, GB, JIS, BSW, DIN, GB, ANSI, Bsw, JIS, GOST

Material

ODM/OEM, Stainless Steel

Surface Treatment

ODM/OEM

Type

Hexagon Head

Groove

Cross

Connection

Common Bolt

Head Style

Round

Grade

12.9

Dimensions

Customized

Color

Black

Surface Finishing

Plain

Delivery

7-25days

Transport Package

Carton+Pallet

Specification

M4-M20

Trademark

Hongniu

Origin

China

HS Code

7318190000

Production Capacity

1000tons/Month

Key features

Stainless Steel Material: Made of 100% stainless steel 18-8 (304) for high chemical and corrosion resistance.

Customization Support: Supports customization based on drawing sheets, samples, material, and surface treatment.

Wide Application: Suitable for high-stress applications like valves, pumps, motors, and automotive suspension.

Multiple Standards: Complies with DIN, ANSI, GB, JIS, BSW, and GOST standards.

Free Sample: Free samples provided, excluding courier fees.

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

Fast Delivery: 10-15 days for in-stock items; over 30 days for non-stock items based on quantity.

Professional Manufacturer: Established in 2000 with over 300 employees and advanced production lines.

Company profile

Importers and ExportersFast DeliveryCustomization from SamplesOEM Services

Yangzhou Hongniu Import and Export Co., Ltd

Jiangsu, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 0.5 year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.81h

AI-Powered supplier vetting

SummaryThe supplier is an established factory serving automotive parts, metallurgy, shipbuilding, heavy industry, agricultural machinery, and furniture customers. It reports integrated R&D, design, production, inspection, and after-sales services, with over 20 years of operating experience, multiple processing and heat-treatment facilities, more than 10 production lines, and quality and environmental certifications. It supports sample- and design-based customization, ODM, and OEM for well-known brands. However, the available evidence also shows limited recent product innovation, no 3D software design or SDK capability, no overseas agents, branches, warehouse, or showroom, and no participation in offline trade shows. Manufacturing capacity is indicated, but the lack of a valid manufacturing-capacity contract with related subcontractors is a potential supply-chain control concern. Financial records are identified for recent years, but no financial performance results are provided. Customer-case details are not...

CertificationsThe company reports holding IATF16949, GB/T24001-2016, ISO14001-2015, and GB/TS45001-2020 certifications. These stated certifications provide explicit evidence of formal quality, environmental, and occupational health and safety management credentials.

R&D capabilityThe supplier reports integrated R&D and design services, ODM capability, and one year of total R&D-engineer experience. Against this, it explicitly reports no new products in the past year, no 3D software design service, and no SDK availability, indicating limited demonstrated recent innovation capability.

Production capacityProduction capability is supported by over 20 years of factory experience, machining and heat-treatment equipment, more than 10 production lines, inventory capability, and stated lead times of within 15 working days in the off-season and one month during peak season. However, there is no valid manufacturing-capacity contract with related subcontractors, which leaves part of capacity governance unverified.

Customization capabilityThe supplier explicitly provides customization from samples and designs and also reports ODM and OEM capability for well-known brands. These statements provide direct evidence of both customer-specific customization and original-design manufacturing capability.

Product Q&A

Q:What is your main products?

Our main sale products: series standard parts (including national standard and non-standard parts); Various types of automotive parts, hydraulic components, castings, and wind power products; aerospace fasteners, etc.

Q:How long is your delivery time?

Generally it is 10-15 days if the goods are in stock. or it is over 30 days if the goods are not in stock, it is according to quantity.

Q:What is your payment method?

30% value of T/T in advance and other 70% balance on B/L copy. For small order less than 5000USD, would suggest you pay 100% inadvance to reduce the bank charges.

Q:Can you provide a sample?

Sure, Our sample is provided free of charge, but not including courier fees.

Q:Can you customize the product according to the requirements of drawing sheets and so on?

Sure, we can customize the products according to your requirements of drawing sheets, samples and so on. Product information include: material, surface treatment, specification and amount.