What are the payment terms?

Payment terms include 100% T/T in advance, LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What is the minimum order quantity?

The Minimum Order Quantity is 500kg.

Do you offer OEM or ODM services?

Yes, we offer OEM and ODM services, including customization from samples, designs, full customization, minor customization, and flexible customization.

Bleeder Screw Release Oil Screw Plug Screw

Name: Bleeder Screw Release Oil Screw Plug Screw
Brand: Zhejiang Ruizhao Technology Co., Ltd.
SKU: 731332392

Zhejiang, ChinaZhejiang Ruizhao Technology Co., Ltd.

US$0.50

10,000-49,999 Pieces

US$0.25

50,000+ Pieces

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

SLdf233f

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, ANSI, GB, JIS, BSW, Accept Non-Standard

Grade

8.8/10.9/12.9/5/8/9

Application

Machinery, Chemical Industry, Environmental, Building, Automotive Industry

Finish

Color-Zinc Plated

Thread

Metric or Inch

Thread Type

Fine / Coarse /Bsw/Bsf/ Unc/Unf

8.8 Hardness

HRC 22-32

8.8 Tensile Strength

Above 800 MPa

8.8 Yield Strength

Above 640 MPa

Transport Package

Carton Packing + Pallets

Specification

M6 to M20

Trademark

Origin

Wenzhou China

HS Code

731518

Production Capacity

600tons / Month

Key features

Customizable Thread Options: Supports Metric or Inch threads, including Fine, Coarse, BSW, Bsf, Unc, and Unf types.

Wide Grade Selection: Available in grades 8.8, 10.9, 12.9, 5, 8, and 9 to meet various strength requirements.

Multiple Surface Finishes: Offers Black, Color Zinc, Dacromet, HDG, and Zinc Nickel Cr3+ coatings for corrosion resistance.

Strict Quality Certification: Certified with ISO 9001, ISO/TS 16949, TS16949, PPAP LEVEL 3, and CO.

Advanced Manufacturing: Utilizes fully automatic equipment and 10 production lines for high efficiency and precision.

Flexible Customization: Provides OEM/ODM services, customization from samples/designs, and non-standard bolt production.

100% Finished Inspection: Ensures quality through 100% visual inspection of finished products by 8 QA/QC inspectors.

Fast Delivery Capability: Standard lead time is 30 working days for a 20' container, with peak/off-season consistency.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceSelf-brandedPatents Awarded

Zhejiang Ruizhao Technology Co., Ltd.

Zhejiang, 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: 7 Years CertifiedNearest Port: Ningbo Port, ShanghaiPortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryThe supplier is identified as a Wenzhou-based trading company engaged in wholesale, automotive-related sales, and import/export activities. It demonstrates broad customization and ODM capability, reports new products in the past year, and provides OEM services for recognized brands. Quality-related procedures include documented inspection, traceability, complaint handling, and quality assurance. However, it has no available SDK, overseas warehouse, showroom, agent, or branch, and no Fortune 500 cooperation is reported. Production ownership and detailed financial credibility remain insufficiently evidenced.

CertificationsThe supplier reports ISO 14001 and ISO 45001:2018 certificates, along with other management-system certification information. The slices do not provide certificate numbers, validity dates, scopes, or independent verification, so the breadth and current status of certification cannot be fully assessed.

After-Sales capabilityThe supplier has documented and followed procedures for handling customer complaints and corrective/preventive actions, plus stated quality assurance and traceability controls. However, it has no overseas warehouse, showroom, agent, or branch, which limits evidence of localized overseas after-sales support.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and holds one national science and technology progress award. It has no internationally recognized design awards and no available SDK, but these limitations do not negate the stated product-development evidence.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, providing direct evidence of broad customization support.

Client casesThe supplier reports OEM service for recognized brands and an 80%–100% repeat-buyer preference range. It reports no cooperation with Fortune 500 companies, and no specific customer names, project descriptions, or verifiable case studies are provided.

Product Q&A

Q:Are you a factory or trading company?

We are a Manufacturer who got import export certificate.

Q:Why choose us?

We had advanced fully automatic equipment to improve the production efficiency and offer good delivery time and best price,With ISO 9001 and ISO/TS 16949 certified. From material selection to parts production, we conform to the strictest quality requirements.

Q:What is your main products?

Hex Flange Bolts, Sems Screws,Hex Bolts, Rivets, Stud Bolts , Non standard Bolts, High Tensile Bolts, Auto Components, Custom CNC Parts.Automotive fasteners, CNC parts, Customized fasteners, screw, bolt, nut .hardware , hand tools, stainless steel fasteners, wheel nut, auto parts. tapping screw, drilling screw, stamping parts, hose clamp. grease nipple , flange bolt, hex nut, flange nut. wheel bolt, key, screws. ball pin, clamp screw, window hardware, flange bolt, socket screw,sems screws, assem

Q:What materials are available for these screws?

Available raw materials include Steel, Carbon Steel, and Alloy Steel.

Q:What standards do your products comply with?

Our standards range include DIN, ISO, JIS, ANSI, ASME, ASTM, and GB. We also accept non-standard requirements.