Are samples available?

Samples in stock are free with freight collect. Custom samples can be produced based on drawings or physical samples.

What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays. Custom delivery times are typically 20-30 days.

Premium ISO 7380-1 Black Oxide Hexagon Socket Screws

Name: Premium ISO 7380-1 Black Oxide Hexagon Socket Screws
Brand: Qewitco Fasteners Co., Ltd
SKU: 2113653232

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.002-0.004

1,000 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Button Head

Model NO.

ISO 7380-1 Screw

Groove

Hexagon

Connection

Common Bolt

Head Style

Button Head

Standard

DIN, ISO

Grade

8.8, 10.9, 12.9

Delivery

20-30 Days

Certification

ISO 7380-1

Packag Color

Customizable

Thread Standard

Unc/Unf/Unef/Uns/Bsw/Bsf/Metric Coarse/Metric Fine

Custom Order

Customization by Drawing/Sample

ODM/OEM

Available

Service

Custom-Made Service

Material Test Certificate

Have

Sample

Samples in Stock Are Free with Freight Collect

Price Terms

Fob/CFR/CIF/DDP/DAP

Color

Customizable or Sliver

Quality Control

100% Quality Inspection

Application2

Connection, Fastening

Finish

Phosphate, Zinc Plated(De-Embrittlement)

Transport Package

Bulk Pack Small Boxed

Specification

M3 TO M16 LENGTH -6 TO 400MM

Trademark

Qewitco

Origin

China

HS Code

731816

Production Capacity

10000ton/Year

Key features

High Strength Grades: Available in Carbon Steel 8.8/10.9/12.9 and Stainless Steel A2/A4 for superior tensile strength.

Wide Size Range: Covers M3 to M16 sizes with lengths from 6mm to 400mm for diverse industrial applications.

Space-Saving Design: Low-profile button head allows for compact assembly and a sleek, flush finish.

Durable Finishes: Options include Black Oxide, Zinc Plated, HDG, and Zinc Flake for enhanced corrosion resistance.

Customizable Options: Customizable colors and packaging; full customization available by drawing or sample.

ISO Standard Compliance: Fully meets ISO 7380-1 specifications ensuring international quality assurance.

100% Quality Inspection: Every batch undergoes strict inspection from material selection to final packaging.

Direct Factory Supply: Factory-direct pricing with integrated production ensuring cost efficiency and value.

Company profile

Years of Export ExperienceExperienced TeamSelf-brandedHigh Repeat Buyers Choice

Qewitco Fasteners Co., Ltd

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2003-12-05Average Response Time: ≤0.36hTerms of Payment: T/T

AI-Powered supplier vetting

SummaryThe supplier demonstrates established export experience, with 90% of sales from exports and 22 years of exporting. It has ISO9001:2015 certification, raw-material traceability, quality assurance, and 100% finished-product inspection, although inspection is performed by packing staff and only two quality inspectors are reported. Customization is broad, covering samples, designs, full customization, minor customization, and flexible customization. Service strengths include in-stock capability, stated lead times within 15 workdays in both peak and off-season, and multiple payment and quotation terms. Limitations include no overseas warehouse, showroom, agent, branch, or overseas service-country coverage, no Fortune 500 cooperation, no new products launched in the last year, one R&D engineer, no popular-brand OEM, and an undocumented corrective/preventive-action process. Financial credibility cannot be assessed because the provided financial figures are excluded from evaluation.

Supplier typeThe supplier is strongly export-oriented, reporting 90% export sales and 22 years of export experience. It can provide in-stock service and accepts FOB, CIF, CFR, and EXW terms, but reports no overseas warehouse, showroom, agent, branch, or overseas service-country coverage.

CertificationsThe supplier reports an ISO9001:2015 certificate for both sustainable development management and management systems, plus other product compliance or sustainability certifications. The specific additional certifications are not identified, so the evidence supports ISO9001 holding but not broader certification strength.

R&D capabilityThe supplier reports one R&D engineer and no new products launched during the previous year. It also reports no available SDK and no popular-brand OEM capability, which indicates limited documented innovation evidence.

Production capacityProduction-related evidence includes raw-material traceability, 100% finished-product inspection, quality assurance, four own-brand quality-control capabilities, inventory capacity, and lead times within 15 workdays in both peak and off-season. Only two quality inspectors are reported, and finished products are checked by packing staff, so production capability is positive but quality-control depth is limited.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. This is direct evidence of broad customization capability.

Product Q&A

Q:Can you produce customized products (OEM/ODM)?

Absolutely! We offer comprehensive OEM/ODM services and can tailor products to your exact requirements, including custom designs, material selection, surface treatments, and packaging solutions.

Q:What payment methods do you accept?

Our standard payment terms are 30% advance payment via T/T, with the balance paid before delivery. We also accept flexible payment options such as L/C, PayPal, and Western Union upon negotiation.

Q:Which trade terms are available?

We support FOB, CIF, CFR, DDP, and DAP shipments. Other Incoterms can be arranged based on your specific logistics needs.

Q:What is your manufacturing background?

With over two decades of expertise, we specialize in high-volume fastener production, precision quality management, and seamless global distribution.

Q:What materials are available for these screws?

We provide Carbon Steel (Grade 8.8, 10.9, 12.9) and Stainless Steel (A2-50, A2-70, A4-50, A4-80) to ensure superior tensile strength and corrosion resistance.