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Durable Grub Countersunk Head Self Tapping Screw for Wood Structures

Name: Durable Grub Countersunk Head Self Tapping Screw for Wood Structures
Brand: Qewitco Fasteners Co., Ltd
SKU: 2152356222

Shandong, ChinaQewitco Fasteners Co., Ltd

US$0.01-0.30

1,000 Pieces

Sample price:US$0.05/piece.Request sample

Product profile

Customization

Available

Material

Stainless Steel

Type

Countersunk Head

Model NO.

Self Tapping Screw

Groove

Phillips

Connection

Common Bolt

Head Style

Countersunk Head

Standard

DIN, ISO

Grade

8.8, 10.9, 12.9,

Delivery

20-30 Days

Certification

DIN 7982f

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)

Point Type

Self-Tapping with Thread Cutting

Transport Package

Bulk Pack Small Boxed

Specification

ST2.2 TO ST6.3, LENGHT -4.5 TO 50MM

Trademark

Qewitco

Origin

China

HS Code

731816

Production Capacity

10000ton/Year

Key features

Anti-Splitting Cut-Tail Design: Patented tip cuts wood fibers to reduce torque and prevent splitting in hardwood or thick boards.

Corrosion-Resistant Materials: Made of 304/316 stainless steel for rust, acid/alkali, and salt spray resistance in humid environments.

Universal Phillips Drive: Compatible with standard screwdrivers for easy installation without special tools.

Flat Countersunk Head: Sinks into the board for a smooth, unobtrusive surface ideal for finishing and aesthetics.

Full Self-Tapping Threads: Provides tight engagement with wood and excellent pull-out resistance for secure fastening.

Customizable Options: Color and packaging are customizable; OEM/ODM services and custom drawings are available.

Wide Substrate Compatibility: Suitable for solid wood, plywood, MDF, OSB, and anti-corrosion wood applications.

Cost-Effective Durability: High-value alternative to carbon steel; lasts 3 times longer with reduced maintenance needs.

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: ≤0.18hTerms 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 these cut-tail wood screws need pre-drilling?

Pre-drilling is mostly unnecessary for wood substrates (softwood, plywood, MDF, OSB). The cut-tail tip smoothly cuts wood fibers. For high-density hardwood (oak, teak) or boards over 30mm thick, a pilot hole (70-80% of the shank diameter) may prevent splitting or screw breakage.

Q:How do 304 and 316 stainless steel differ?

304 stainless steel suits most indoor and general outdoor uses, providing good corrosion resistance at a lower cost. 316 stainless steel, enriched with molybdenum, offers superior salt spray resistance, perfect for coastal or corrosive areas.

Q:What benefits does a cut-tail screw offer over standard wood screws?

The cut-tail tip cuts wood fibers, reducing driving torque and preventing splitting, particularly in hardwood. It also ensures tighter thread engagement for superior holding power.

Q:What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

Q:Is customization available for this product?

Yes, customization is available including from samples, designs, and full customization. OEM/ODM services are also supported.