What standards do the screws comply with?

The screws comply with DIN, GB, ANSI, and BSW standards.

What is the lead time for production?

Peak season lead time is 1-3 months, while off-season lead time is within 15 workdays.

What payment terms are accepted?

Accepted payment types include T/T, L/C at sight, and PayPal. Currencies accepted are USD, EUR, and CNY.

Black Wafer Truss Head Unique Twin-Lead Thread Design and 23° Point Self-Tapping Screws

Name: Black Wafer Truss Head Unique Twin-Lead Thread Design and 23° Point Self-Tapping Screws
Brand: Newspider Tianjin Impex Co., Ltd.
SKU: 2152346132

Tianjin, ChinaNewspider Tianjin Impex Co., Ltd.

US$1.25

1,000-9,999 kg

US$1.18

10,000-199,999 kg

US$1.05

200,000+ kg

Product specifications

Diameter

Length

Surface Treatment

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Wafer Head

Model NO.

Black Wafer Head Self-tapping Screw

Groove

Cross

Connection

Common Bolt

Head Style

Round

Standard

DIN, GB, ANSI, BSW

Grade

8.8

Product Name

Wafer Head Self-Tapping Construction Screw

Application

Sheet Metal, Roofing, Construction

Screw Type

Self-Tapping Screw

Material Number

C1022A Carbon Steel

Measuring System

Metric and Inch

Surface Treatment

Black

Thread Type

Single Thread, Twin Thread

Point

Unique Sharp Tapping Point

Diameter

7#-10# (3.9mm-4.8mm) or as Request

Length

1/2"-3" (13-75mm) or as Request

MOQ

1 Ton Per Size

Customization 1

Sizes of The Screws

Customization 2

Packing of The Screws

Customization 3

Surface Treatment

Transport Package

Bale Bag or Box + Carton + Pallet

Specification

M3.9 M4.2 M4.8

Trademark

OEM

Origin

Tianjin, China

HS Code

7318120090

Production Capacity

5000 Tons

Key features

High Strength Material: Made from C1022A Carbon Steel with Grade 8.8 strength, ensuring durability and high load capacity.

Customizable Specifications: Diameter (3.9mm-4.8mm) and Length (13-75mm) are customizable as per request.

Versatile Surface Treatment: Available in Black, Yellow, Blue, Galvanized, Nickel Plating, Ruspert, and Dacromet.

Wafer Truss Head Design: Modified wafer truss head with Phillips groove prevents slipping during installation.

Professional Manufacturing: Produced with high-speed cold heading and self-owned heat treatment lines for consistent quality.

Wide Application Range: Suitable for soft metal-to-metal, metal-to-wood, composites, and plastics fastening.

Flexible Packaging Options: Offers bale packing, individual boxes with logos, or custom packaging solutions.

Company profile

Importers and ExportersFast DeliveryQuality AssuranceStandardized quality control

Newspider Tianjin Impex Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from SamplesExport Year: 2017-03-17Nearest Port: TianjinAverage Response Time: ≤3.15h

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier providing 3D software design, ODM, OEM, and sample-based customization. It reports more than 40 employees, separate production and packing workshops, experienced workers, process inspection, annual production of about 5,000 tons, and supply to more than 20 countries. However, it has no stated inventory, overseas warehouse, overseas showroom, overseas agent or branch, and no offline trade-show participation. Manufacturing capacity lacks a valid contract with related subcontractors. Quality and complaint-handling procedures are documented and followed, but no certification is identified. Innovation evidence is limited because no new products were reported in the past year and no SDK is available. Financial credibility cannot be reliably assessed because the supplied financial records are incomplete and inconsistent. ERP integration and several related digital systems are absent or recorded as zero.

Supplier typeThe supplier explicitly identifies itself as a professional technical supplier, offers 3D software design, ODM, and OEM services, and operates production and packing workshops for screw manufacturing. This indicates a manufacturer with technical design and contract-manufacturing capabilities.

After-Sales capabilityThe supplier has documented and followed procedures for customer complaints, supplier-service assessment, and corrective/preventive actions. However, it reports no overseas warehouse, showroom, agent, branch, or inventory capability, limiting evidence of localized after-sales support.

Production capacityThe supplier reports separate production and packing workshops, more than 40 employees, experienced workers, process inspection, annual production of about 5,000 tons, and lead times within 15 workdays to one month. Against this, it has no valid contract with related subcontractors and no inventory capability; overall manufacturing capacity is explicitly supported, though supply-chain controls have limitations.

Customization capabilityCustomization is explicitly available from samples, and the supplier states that screw customization is available across quantities and sizes. Its 3D design, ODM, and OEM services further support tailored product development.

Client casesThe supplier states that it has supplied products to more than 20 countries and provides OEM services for well-known brands. These statements constitute direct evidence of international customer experience, although no customer names or detailed case examples are provided.