What certifications do your products have?

Our products are certified by ISO and SGS standards.

Is customization available for these screws?

Yes, customization is available for color, diameter, length, and heat treatment. We also support OEM branding.

What are the available surface finishes?

Surface finishes include Galvanized, Yellow painted, and HDG (Hot Dipped Galvanized).

Flat Countersunk Csk Head SDS Tek Self-Drilling Screws with Wings

Name: Flat Countersunk Csk Head SDS Tek Self-Drilling Screws with Wings
Brand: Tianjin Yingxintai Import and Export Co., Ltd.
SKU: 2156431892

Tianjin, ChinaTianjin Yingxintai Import and Export Co., Ltd.

US$1,440.00-1,760.00

1,000 Tons

Product specifications

weight

Sample price:US$0.01/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Round Head

Groove

Cross

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW, JIS

Grade

12.9

Customized

Yes

Usage

Wood/Metal

Heat Treatment

Yes

Color

White/Grey/Black/Yellow

Product Name

Big Round Head Ruspert Self Drilling Screw with Wi

Diameter

3.5/3.9/4.2/4.8/5.5/6.3

Length

19-75

Samples

Avaiable

Package

Small Box+Carton

Finishment

Galvanized/Dacromet

HS

731814

Delivery Time

15-30days

Transport Package

Carton/Bag/ /Samll Box

Specification

3.5/3.9/4.2/4.8/5.5/6.3

Trademark

YXT

Origin

Tianjin, China

HS Code

731814

Production Capacity

20000tons

Key features

Self-Drilling Design: Quenched and hardened tip penetrates wood, board, and metal without pre-drilling.

High Strength Material: Made of Grade 12.9 carbon steel with strong pull-out resistance and load-bearing capacity.

Anti-Loosening Feature: Fully threaded design ensures tight fit, preventing loosening, deformation, or breakage.

Customizable Options: Customized color, diameter, length, and heat treatment available for specific needs.

Certified Quality: Products certified by ISO and SGS standards for reliable performance.

Versatile Application: Suitable for engineering construction, decoration, and various substrate connections.

Flexible Delivery: Stock items ship within 15 days; bulk orders take 30-60 days based on customer wishes.

Manufacturer Direct: Direct from factory with 7x24 video verification service for transparency.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceMulti-language PioneerExhibition Experience

Tianjin Yingxintai Import and Export Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤0.14h CertifiedTerms of Payment: LC, D/P, T/T, etc.

AI-Powered supplier vetting

SummaryThe supplier is a hardware manufacturer focused on screws, blind rivets, coil nails, and concrete nails. It reports seven wire-drawing lines, two heat-treatment lines, and substantial forming and threading equipment, with stated screw output of 20,000 tons. The supplier offers OEM/ODM and multiple customization options, and its finished-product inspection instructions are uniformly followed. It reports ISO9001, ISO14001, and ISO45001 certifications. Export sales account for 71%–90% of total sales, and it has participated in the Canton Fair. However, it does not provide 3D software design services, overseas warehouse or showroom services, or overseas agents/branches; its overseas-service country count is stated as zero. Evidence is insufficient to assess after-sales service, financial credibility, or customer cases. R&D resources also appear limited, with one year of total R&D engineer experience reported.

Supplier typeThe supplier explicitly states that it is not a professional technical supplier, while its product description identifies it as a hardware manufacturer producing screws, blind rivets, coil nails, and concrete nails. This supports classification as a hardware manufacturing supplier rather than a technical design-service provider.

CertificationsThe supplier states that it has passed ISO9001 Quality Management System, ISO14001 Environmental Management System, and ISO45001 Occupational Health and Safety Management System certifications. These explicitly reported certifications support a positive assessment for certification holding.

R&D capabilityThe supplier describes itself as committed to innovation and provides OEM/ODM and tailored solutions, but it explicitly states that it is not a professional technical supplier and does not provide 3D software design services. Only one year of total R&D engineer experience is reported, so strong innovation capability is not established.

Production capacityThe supplier reports seven wire-drawing lines, two heat-treatment lines, 100 head-making machines, 85 thread-making machines, 20 tail-making machines, and stated screw output of 20,000 tons. It also reports inventory capability, one-month lead times in both peak and off-peak seasons, and 20 qualified suppliers for service capability, providing explicit evidence of substantial production capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, and OEM/ODM tailor-made solutions. However, it does not offer 3D software design services, so customization is supported through other methods rather than 3D design software.

Product Q&A

Q:Are you a trading company or manufacturer?

We are the manufacturer. We are the international trade branch of the factory. We provide 7x24 hours real-time video verification factory service.

Q:What is your core product?

We specialize in the production of high quality screws, mainly drywall screws, particle board screws, wood screws, etc.

Q:How long is your delivery time?

If the goods are in stock, within 15 days. 30-60 days for bulk order.

Q:What materials are used for these screws?

The screws are crafted from high carbon steel, specifically Grade 12.9, ensuring high strength and durability.

Q:Can the screws be used without pre-drilling?

Yes, the tip has undergone quenching and hardening treatment, allowing it to quickly penetrate various substrates such as wood, board, and metal without pre-drilling.