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M3.9 M4.2 X 1" Galvanized Csk Phillips Head Self-Drilling Screws for Metal Plate
US$1.50
1,000-9,999 kg
US$1.35
10,000-249,999 kg
US$1.20
250,000+ kg
Product specifications
Diameter
Length
Surface Treatment
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableMaterial
Carbon SteelType
Countersunk HeadModel NO.
Self-drilling ScrewsGroove
CrossConnection
Common BoltHead Style
Counter Sunk BoltStandard
DIN, GB, ANSIGrade
8.8Product Name
Csk Self Drilling ScrewApplication
Metal Plate, WindowsSurface Treatment
White Blue GalvanizedPoint
Drilling PointThread
Standard ThreadMeasurment
Metric and InchDiameter
6#-8# (3.5mm-4.2mm) or as RequestLength
1/2"- 4" (13-100mm) or as RequestPacking
Individual Packing or Bale PackingMOQ
1 Ton Per SizeAdvantage
High StrengthCommon Size 1
#8 X 1" (M4.2 X 25mm)Common Size 3
#8 X 1-1/4" (M4.2 X 32mm)Common Size 2
#7 X 1" (M3.9 X 25mm)Common Size 4
#7 X 1-1/4" (M3.9 X 32mm)Transport Package
Box + Carton +PalletSpecification
M3.9 x 1"Trademark
OEMOrigin
ChinaHS Code
7318140000Production Capacity
1000/MonthKey features
Self-Drilling Capability: Drill point enables drilling without creating a pilot hole first for metal and wood structures.
High Strength Material: Made of Carbon Steel C1022A with heat treatment for stronger strength and corrosion resistance.
Customizable Options: Diameter, length, surface treatment, and drive type are customizable as per request.
Versatile Applications: Commonly used to fasten metal, plastic, and fiberglass roofing sheets to metal or wood structures.
Professional Manufacturing: Adopt high-speed cold heading machine and self-owned heating treatment line for stable quality.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2017-12-04Nearest Port: TIANJINAverage Response Time: ≤2.69hTerms 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 is the MOQ for this product?
A:
The MOQ is 1 ton per size for bulk packing and 10 tons for box + carton + pallet packing.
Q:Can the screw diameter and length be customized?
A:
Yes, the diameter (3.5mm-6.3mm or 6#-14#) and length (13mm-220mm or 1/2'-8-2/3') are customizable as per request.
Q:What surface treatments are available?
A:
Available treatments include Phosphate, Galvanized (White/Blue/Yellow Zinc), Nickel Plating, Brass Plating, Copper Plating, Ruspert, and Dacromet.
Q:What payment terms are accepted?
A:
Accepted payment types include T/T, L/C at sight, and PayPal. Accepted currencies are USD, EUR, and CNY.
Q:What is the lead time for production?
A:
The lead time is within 15 workdays during the off-season and one month during the peak season.
Send Inquiry
*To:
Tianjin Spider Impex Co., Ltd.
Tianjin Spider Impex Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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