What is the minimum order quantity?

The Minimum Order Quantity is 500kg.

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.

Hex Head Sems Screws Assembled Plain Washer Spring Washer

Name: Hex Head Sems Screws Assembled Plain Washer Spring Washer
Brand: Zhejiang Ruizhao Technology Co., Ltd.
SKU: 733526812

Zhejiang, ChinaZhejiang Ruizhao Technology Co., Ltd.

US$0.01-0.20

1,000 Pieces

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

SLM23CVBB

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

10.9 Hardness

HRC 33-38

10.9 Tensile Strength

Above 1040 MPa

10.9 Yield Strength

Above 940 MPa

12.9 Hardness

HRC 39-45

12.9 Tensile Strength

Above 1200MPa

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 with Fine, Coarse, Bsw, Bsf, Unc, or Unf types.

Wide Grade Selection: Available in grades 8.8, 10.9, 12.9, 5, 8, and 9 with specific hardness and strength specs.

Multiple Surface Finishes: Options include Black, Color Zinc, Dacromet, HDG, and Zinc Nickel Cr3+.

OEM and ODM Services: Offers full customization, minor customization, and flexible customization from samples or designs.

Strict Quality Certification: Certified with ISO 9001, ISO/TS 16949, PPAP LEVEL 3, and conducts 100% visual inspection.

Advanced Manufacturing: Equipped with fully automatic equipment, CNC lathes, and optical sorting machines for efficiency.

Fast Delivery Time: Lead time is 30 working days for a 20' container, with one-month lead time for peak/off-peak seasons.

Versatile Application: Suitable for machinery, automotive, construction, railway, chemical industry, and furniture sectors.

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 trading company in Longwan District, Wenzhou, with a business scope covering computer hardware, automotive products, metal products, and import/export activities. It reports broad customization, ODM services, recent new-product development, OEM services for recognized brands, and documented quality, complaint-handling, supplier-assessment, and corrective-action procedures. Production-related evidence includes multiple machining and coating facilities, although the company type and associated-company industry indicate a trading orientation. Certification evidence includes ISO14001 and ISO45001:2018, while no SDK is available. Overseas infrastructure is limited: no overseas warehouse, showroom, agent, or branch, and overseas service coverage is listed as zero. Customer evidence includes OEM work for known brands, but no Fortune 500 collaboration is reported.

CertificationsThe supplier reports ISO14001 and ISO45001:2018 certificates, along with other certification entries. The slices do not identify the scope, issuing bodies, validity, or whether a quality-management certification is held, so certification strength cannot be fully assessed.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with implementation records and documented quality assurance and traceability practices. However, it reports no overseas warehouse, showroom, agent, or branch, and overseas service coverage is listed as zero, limiting demonstrated local after-sales infrastructure.

R&D capabilityThe supplier reports new products during the past year, ODM services, and broad design support. It also reports one national science and technology progress award, but has no available SDK and no internationally recognized design awards, so innovation capability is supported but technically limited in the provided evidence.

Production capacityThe supplier reports equipment and production lines including optical sorting, cold heading, thread rolling, tapping, CNC turning, and Dacromet coating. Finished-product inspection instructions are uniformly followed, and supplier assessment and corrective-action procedures have records; however, the supplier is also classified as a trading company, so the extent of directly owned production capacity is not fully clear.

Customization capabilityBoth service-capability records list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also reports ODM availability and recent new-product development, providing explicit evidence of broad customization support.

Client casesThe supplier reports OEM service for recognized brands and participation in the China (Indonesia) Trade Fair. It reports no Fortune 500 collaboration, no overseas agents or branches, and no overseas service coverage, so customer-case evidence exists but is limited in scope and detail.

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 materials include Steel, Carbon Steel, and Alloy Steel.

Q:What standards do your products comply with?

Our products comply with DIN, ISO, JIS, ANSI, ASME, ASTM standards, and we also accept non-standard requirements.