Do you factory have the capacity to help customer design develop new items?

Yes, Qewitco has its own product research & development department. With agreement, based on sample or spec. drawings, Qewitco would like to develop new items for special application.

Do you supply tools, facilities, including spare parts?

Yes. And, in accordance with tool / machine's models, Qewitco sends the diagram to you for reviewing and suggest you some easy-broken parts.

About your products, could you accept OEM?

Acceptable. Yes, OEM service is available.

How is the payment terms?

For new customers, 30% / 50% in advance and 70% At Sight of Copy of B/L. With mutual learning / confidence, we accept to discuss new payment term.

How is your customer support after purchase?

We are committed to providing you with excellent after-sales service. If you encounter any quality issues, please kindly give feedback to Qewitco within 45 days.

How can you get a quote quickly?

Please email us with all the information you have, and if there are any details missing, feel free to send us pictures of the product or packaging so we can accurately determine your needs.

DIN316 Wing Screw Butterfly Head Hand Tightening Screw Without Tool

Name: DIN316 Wing Screw Butterfly Head Hand Tightening Screw Without Tool
Brand: Qewitco Fasteners Co., Ltd
SKU: 2117954802

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.009-0.059

1,000 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Wing Bolt

Model NO.

wings screw

Groove

Wing

Connection

Common Bolt

Standard

DIN, GB, ANSI, BSW, JIS, GOST

Grade

4.8

Delivery

7-15 Days

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

M4-M24

Trademark

Qewitco

Origin

China

HS Code

731816

Production Capacity

10000ton/Year

Key features

Butterfly-style wing nut head; can be tightened or loosened by hand without the need for a wrench

Precision full-thread external thread; smooth threads ensure easy screw-in without jamming

Galvanized anti-corrosion treatment ensures rust resistance and durability under normal operating conditions

Available in carbon steel or 304/316 stainless steel, suitable for both standard and humid, corrosive environments

Quick to install and remove, ideal for applications requiring frequent adjustment or disassembly

Complies with the DIN 316 standard, featuring uniform dimensions and excellent interchangeability

OEM and ODM Services: Full customization support available based on customer drawings or physical samples.

Free of charge samples are offered for your quality inspection, buyers only need to bear the courier freight.

Qewitco, a fastener manufacturer, has over 20 years of experience in supplying products.

One-stop sourcing-we look forward to establishing a long-term partnership with you.

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: ≤0.41hTerms 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:Do you have your own production factory?

Yes, besides our own factories, Qewitco also has good business relationship with many other fastener, tool, and facilities mills in China & overseas.

Q:How does your factory do regarding quality control?

Clear standards and written inspection records, including incoming material, each process control, final inspection, and customer's complaint. Daily record is traceable.

Q:Do you have quality certification?

Yes, CE, SGS, ISO, etc.

Q:What's the delivery time?

We have most sizes in stock. For orders under 5,000 pcs, the lead time is 5-7 days.

Q:Is combination acceptable in one container?

Acceptable.