What certifications do you have?

We are certified with ISO 9001, 45001, and 14001, ensuring superior quality, safety, and environmental sustainability.

What packaging methods are used?

Packaging includes 1000-5000pcs per pack, with inner anti-rust packaging and outer carton protection to prevent damage during transportation.

China Factory Fastener Plain Finish Square Nut

Name: China Factory Fastener Plain Finish Square Nut
Brand: Qewitco Fasteners Co., Ltd
SKU: 2137717242

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.02-0.10

1,000 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Square Head

Model NO.

Plain Finish Square Nut

Connection

Common Bolt

Head Style

Square

Standard

DIN, ISO

Grade

8.8

Certification

ISO9001 CE DIN562

Delivery

20-30 Days

Finish

Ruspert

Packag Color

Customizable

Thread Standard

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

Custom Order

Customization by Drawing/Sample

Price Terms

Fob/CFR/CIF/DDP

ODM/OEM

Available

Service

Custom-Made Service

Size Standard

Metric/Inch

Material Test Certificate

Have

Sample

Samples in Stock Are Free with Freight Collect

Quality Control

100% Quality Inspection

Application

Connection, Fastening

Transport Package

Bulk Pack Small Boxed

Specification

M3 - M48

Trademark

Qewitco

Origin

China

HS Code

731816

Production Capacity

10000ton/Year

Key features

DIN562 Standard Compliance: Manufactured strictly according to DIN562 for consistent dimensions and global interchangeability.

Dual Material Options: Available in stainless steel for corrosion resistance and carbon steel for high strength and cost-effectiveness.

Rust-Proof Durability: Special surface treatment enhances anti-corrosion performance, extending service life in harsh environments.

Excellent Electrical Conductivity: Suitable for electrical connection scenarios requiring stable current transmission in equipment industry.

Flexible Customization: Supports customization by drawing or sample, including packaging and surface treatment solutions.

Wide Size Range: Available in thread sizes ranging from M3 to M48 to meet diverse application needs.

100% Quality Inspection: Three-stage quality inspection process ensures superior quality with reports provided for each batch.

Versatile Applications: Ideal for civil furniture, equipment manufacturing, construction, electrical appliances, and industrial machinery.

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: ≤0.49hTerms 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 provide samples before bulk order?

Yes, we can provide free samples (within 5pcs per size) for quality inspection, and the customer only needs to bear the freight cost.

Q:Is customization available for non-standard sizes?

Yes, we support customization of square nuts with non-standard thread sizes, materials and surface treatments according to customer drawings or samples.

Q:What is the payment term?

Our standard payment term is T/T 30% deposit in advance, 70% balance before shipment; L/C at sight is also acceptable for large orders.

Q:What is the MOQ for orders?

The minimum order quantity is 100kg per order, with mixed thread sizes acceptable under the premise of meeting the minimum order weight.

Q:What is the lead time for production?

Lead time is 15-30 days after receiving the deposit, depending on the order quantity and customization requirements.