What is the material and grade of the screw?

The screw is made of Carbon Steel with Grade 8.8, featuring a Blue White Zinc Plated surface treatment.

What packaging options are available?

We offer bulk packing (25kgs per bag/carton) and normal packages (100/200/500/1000PCS per Box/Small bag+Carton+Pallet). Customization is acceptable.

Cheap Price Zinc Plating Hex Head Self-Drilling Screw with EPDM Washer

Name: Cheap Price Zinc Plating Hex Head Self-Drilling Screw with EPDM Washer
Brand: Tianjin Spider Impex Co., Ltd.
SKU: 2037614362

Tianjin, ChinaTianjin Spider Impex Co., Ltd.

US$950.00-1,500.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Material

Carbon Steel

Type

Hexagon Head

Model NO.

Self Drilling Screws

Groove

Hexagon

Connection

Common Bolt

Head Style

Hexagonal

Standard

DIN, GB

Grade

8.8

Name

Self Drilling Screws

Surface Treatment

Blue White Zinc Plated

Head Type

Hexagonal Head

Point

Drill Point

Thread

Single Start Thread

Diameter

4.2mm

Length

50mm

Package

Small Box + Carton

Shipping Time

30-55days

Transport Package

Carton

Specification

4.2*50mm

Trademark

Spider Screws

Origin

China

Production Capacity

2000/Month

Key features

Self-Drilling Design: Features a drill point for direct installation into metal without pre-drilling.

EPDM Washer Included: Comes with an EPDM washer for superior waterproofing and sealing.

High Strength Grade: Made from Carbon Steel with Grade 8.8 for high tensile strength.

Corrosion Resistant: Blue White Zinc Plated surface treatment for rust protection.

Customization Available: Accepts customized designs, ODM and OEM services for specific needs.

Fast Delivery: Stock items delivered within 2 days; production takes 20-30 days.

Free Samples: Free samples provided, with customer covering freight costs.

Professional Manufacturer: Established in 2009 with 150 sets of production equipment.

Company profile

Tianjin Spider Impex Co., Ltd.

Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2017-12-04Nearest Port: TIANJINAverage Response Time: ≤2.64hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA, EXW

AI-Powered supplier vetting

SummaryTianjin Spider Impex Co., Ltd. is a China-based limited company identified as both a manufacturer/factory and a trading company, supplying dental consumables, equipment, and related products. It reports ISO 9001 certification, three production lines, 6–10 quality-control staff, and 6–10 years of R&D engineer experience. The supplier serves broad international markets, with 71%–90% of sales reportedly from exports, and is located near Tianjin port. It states that it provides after-sales service, stable supply, and quality control, but these claims are not independently substantiated in the provided information. Production lead time is stated as within 15 working days off-peak and 2–3 months during peak periods. Evidence of customer activity is limited to two recorded transactions, each associated with one buyer.

Supplier typeThe supplier is identified as a limited company in China and is variously classified as a manufacturer/factory and a trading company. Its stated business scope covers dental materials, consumables, laboratory equipment, orthodontic products, and related goods.

CertificationsThe supplier reports holding ISO 9001 certification and also mentions TUV Rheinland and CCIC trademarks or authorizations. The provided slices do not include certificate numbers, validity dates, or verification details, but they do provide explicit evidence of reported certification and authorization.

After-Sales capabilityThe supplier explicitly presents efficient after-sales service as a company tenet and states that it is responsible for after-sales work for consumables and equipment products. However, no staffing, service process, response-time, or customer-performance evidence is provided.

Production capacityThe supplier reports three production lines, 6–10 quality-control staff, ISO 9001 certification, and stable supply and quality control. It states an off-peak lead time within 15 working days, while peak-season fulfillment may require 2–3 months, indicating documented production capacity but substantial peak-season variability.

Client casesThe supplier states that its disposable dental apparatus are sold across multiple international regions, and its reported export markets span South America, Europe, the Middle East, North America, Asia, Oceania, and Africa. Trade records show two transactions involving Natural8 Dental Laboratory Inc. and Dento Correct, but the documented customer and transaction sample is limited.

Product Q&A

Q:What are your hot sale products?

We offer Drywall Screws, Chipboard Screws, Self Tapping Screws, Self Drilling Screws, Roofing Screws, Common Nails, Concrete Nails, and various Binding Posts and Chicago Screws.

Q:What are your terms of payment?

Normally 30% T/T deposit and 70% T/T before shipment, or L/C. For small orders, we accept PayPal, Western Union, and MoneyGram.

Q:How long is the delivery time?

If stock is available, delivery is within 2 days after payment. For production, it takes 20-30 days for one container (20-26 tons).

Q:Do you provide free samples?

Yes, we offer free samples, but the customer needs to pay the freight cost first.

Q:Why choose your company?

We have experienced staff, offer customized designs (ODM/OEM), and ensure high quality and stable features through professional manufacturing and inspection.