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Metal Galvanized Hexagonal Hex Head Self Drilling Roofing Screw Tek Tapping Screw with EPDM Washer
US$1.10-1.40
1,000 kg
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelType
Hexagon HeadModel NO.
Self Drilling ScrewsGroove
CrossConnection
Common BoltHead Style
HexagonalStandard
DIN, GB, ANSI, BSWGrade
8.8Product Name
Hex Head Self Drilling Screw with EPDM WasherApplication
Metal PlateSurface Treatment
Blue White GalvanizedPoint
Drilling PointThread
Common ThreadMeasurement
Metric and InchDiameter
8# 10# 12# (4.2mm 5.5mm 6.3mm) or as RequestLength
1/2"- 12" (13-300mm) or as RequestPacking
Individual Packing or Bale PackingMOQ
1 Ton Per SizeAdvantage
High Strength and Sharp TeethCommon Thickness
M10 M12Common Length
19mm, 25mm, 32mm, 38mm. 50mm, 75mmTransport Package
Box + Carton + PalletSpecification
3.5*25mmTrademark
OEMOrigin
TianjinHS Code
7318150000Production Capacity
1000/MonthKey features
High Strength Material: Made of Carbon Steel C1022A with high-strength rolling arm for uniform force and wear resistance.
Versatile Drill Points: Available in 2#-5# Drill Point, Spoon, Sword, and Spade Tips for various roofing and metal applications.
Superior Corrosion Resistance: Offers Ruspert and Dacromet treatments achieving 500, 1000, and 1500 hours of salt spray resistance.
Customizable Dimensions: Diameter ranges from 4.2mm to 6.3mm and length from 13mm to 300mm, with custom requests accepted.
Multiple Washer Options: Compatible with EPDM bonded, PVC, Rubber, and Nylon washers in black, gray, or clear colors.
Wide Standard Compliance: Meets DIN, GB, ANSI, and BSW standards for global market requirements.
Flexible Packaging: Available in Bale Packing (25kg/ton) or Individual Box + Carton + Pallet packing.
Professional Manufacturing: Produced by experienced team with 150 sets of equipment and strict quality inspection processes.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-12-04Nearest Port: TIANJINAverage Response Time: ≤1.45hTerms 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:Who are we?
A:
We are based in Tianjin, China, start from 2017, sell to South America (35.00%), North America (30.00%), Western Europe (15.00%), South Asia (10.00%), Mid East (5.00%), Africa (5.00%). There are total about 11-50 people in our office.
Q:How can we guarantee quality?
A:
1) To meet the requirements of different customers for weight, drilling speed.etc. Can be produced according to the standards of different markets. For example, American Standard, German Standard, National Standard, etc. 2) Always a pre-production sample before mass production. 3) Always final Inspection before shipment.
Q:What can you buy from us?
A:
For Screws: Drywall Screws, Sellf-drilling Drywall Screws, Chipboard Screws with or without Type 17 Point, Spax Saw Thread Screws, Self Tapping decking Screws, Concrete Screws, Self Tapping Screws, Self Drilling Screws, Self Screwing Screws, Roofing Screw, Modified Wafer Truss Head screws, Pan Head Screws, Oval Head Screws, Hex head Self-drilling Self-tapping Screws with EPDM Washer, PVC or Rubber Washer, Sanwich Pannel Screws with EPDM Bonded Washer. Flat CSK countersunk Head Self-drilling Self
Q:Which can you custom?
A:
1) Diameter of screws. 2) Length of screws. 3) Surface treatment, which includes the Phosphate, Galvanized, Nickel Plating, Brass Plating, Copper Plating, Ruspert, Dacromet.
Q:What kind of packing can we supply?
A:
1) Bale Packing: 25 kgs/carton, 25 kgs/bag, 1 ton per bag, 1 ton per wooden box. 2) Individual Packing: small box + master carton + pallet. bag + master carton + pallet.
Send Inquiry
*To:
Tianjin Spider Impex Co., Ltd.
Tianjin Spider Impex Co., Ltd.*Content:
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