What is your delivery time?

Standard parts take 7-15 days. Non-standard parts take 15-25 days. We aim to deliver as soon as possible while guaranteeing quality.

How to custom-made (OEM/ODM)?

Send us new product drawings or samples, and we will custom-make the hardware as required. We also provide professional advice to maximize product performance and design realization.

Which mode of transport is better?

Generally, we advise delivery by sea due to the heavy weight of production. However, we respect your views on other transportation modes as well.

Flange Oil Plug Bolt Plug Screw Concave Head Hex Flange Bolt

Name: Flange Oil Plug Bolt Plug Screw Concave Head Hex Flange Bolt
Brand: Hebei Yunchang Fastener Manufacturing Co., Ltd.
SKU: 2139553882

Hebei, ChinaHebei Yunchang Fastener Manufacturing Co., Ltd.

US$0.05

1,000-1,999 Pieces

US$0.03

2,000+ Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

High Strength Steel

Type

Hexagon Head

Model NO.

DIN

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, GOST

Grade

8.8

Application

Machinery, Building, Steel Structure

Finish

Yellow Zinc

Size

M6—M30

Delivery Time

10 to 15 Days

Scope of Use

Mechanical Processing, Automobile Repair

Package

Custom

Transport Package

Box

Specification

25*25*15

Trademark

Yun Chang

Origin

China

Production Capacity

50000000

Key features

High Precision Customization: Strictly follow drawing tolerances and provide high precision parts as per customer designs.

Wide Grade Range: Available in Steel Grades 4.8, 6.8, 8.8, 10.9, and 12.9 for various strength requirements.

OEM/ODM Service: Supports custom-made hardware based on samples, drawings, or new product ideas.

ISO Certified Quality: All processes strictly adhere to ISO9001:2008 procedures with 100% finished product inspection.

Diverse Finish Options: Offers Plain, Black Oxide, and Yellow Zinc finishes for corrosion protection and aesthetics.

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

Large Production Capacity: Annual design output exceeds 150,000 tons with over 200 sets of production equipment.

Fast Delivery: Standard parts delivered in 7-15 days; non-standard parts in 15-25 days.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Hebei Yunchang Fastener Manufacturing Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 22 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤7.56h

About Our Factory & Business Background

AddressSouthwest Industrial Zone, Lu Chan Street and Northeast Side of Construction Street, Yongnian District, Handan City, Hebei Province

Plant Area52307 square meters

Number of Employees239

Registered Capital50,180,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Ton

Supply Chain Partners3

Our Production Capability & Technical Expertise

Main ProductsFoundation Bolt, Steel Structure Bolt, Shear Bolts, Hex Bolt, Hex Nut, Flange Bolt, Flange Nut, Full-thread Studs, Full-thread Studs

Production Lines3

Production MachinesNuts Cold Header, Bolts Cold Header, Purface Treatment Machine Equipment, Purface Treatment Machine Equipment, Cutting Machine, Lathe, Threading Machine, Surface Treatment Tank, Surface Painting Production Line, Sand Blasting Machine, hot-forging machine, CNC Machining Center, hot-forging machine, Punching Machine, Packing Machine, Nuts Threading Machine

QA/QC inspectors11 people

Inspection Type for Finished Products100% inspection(Function inspection & Visual inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers5 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2003-07-03

Main MarketsDomestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff6

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Management System CertificationISO45001:2018, ISO14001

Cooperated with Fortune 500No

Product Q&A

Q:Why choose us?

We provide first-class services in quality fastener supply to minimize costs. Our vision is to be your first choice, and our mission is professional customer service and technological innovation. We offer reasonable quality and price, plus market sales suggestions.

Q:How is quality ensured?

All processes strictly adhere to ISO9001:2008 procedures. We have strict quality control from production to delivery, supported by strong technology and experienced managers familiar with modern quality management concepts.

Q:What if I cannot find the product on your website?

You can send pictures, photos, or drawings via email for us to check. We develop new models monthly. Alternatively, send samples by DHL/TNT, and we can develop a new model specifically for you.

Q:Can you strictly follow the tolerance on the drawing?

Yes, we can. We provide high precision parts and manufacture them exactly according to your drawings.

Q:How should I order and make payment?

Payments are made by T/T. For samples, 100% payment with the order. For production, a 30% deposit by T/T before production, with the balance paid before shipment.