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0102030405
China Suppliers of Precision Engineered Countersunk Head Screws | Flat Head Screws | CSK Screws Factory
Product Overview
| Product Name | Countersunk Head Screw / Flat Head Screw / CSK Screw |
| Head Type | 90° Flat Head, Countersunk Head |
| Drive Type | Phillips / Slotted / Torx / Hex Socket |
| Standards | DIN 965, DIN 7991, ISO 10642, ANSI B18.3, or customized |
| Material |
Carbon Steel Stainless Steel (SS201, SS304, SS316) Alloy Steel Brass / Aluminum (optional) |
| Grade | 4.8, 8.8, 10.9, 12.9 / A2-70, A4-80 |
| Surface Finish |
Zinc Plated (Clear / Yellow / Blue) Black Oxide Nickel / Chrome Plated Hot-Dip Galvanized (HDG) Plain / Polished |
| Size Range |
Metric: M2 – M24 Inch: #4 – 1" Custom lengths and thread pitches available |
Product Features
Flush installation for clean, smooth surfaces
Ideal for aesthetic or space-constrained applications
High tensile strength and corrosion resistance
Available in various drive types for versatile tooling
Suitable for wood, metal, and plastic materials
Precision threads ensure strong fastening and easy installation
Applications
Furniture and cabinetry
Mechanical and electronic enclosures
Automotive interior components
Electrical devices and appliances
Aerospace and marine hardware
Construction and architectural fittings
Packaging & Delivery
| Packaging |
Bulk in cartons with pallets Small boxes, plastic trays, or custom branding |
| Lead Time | 7–30 days depending on stock and order size |
| Shipping Port | Tianjin, China |
Why Choose Hebei Chudu
- 10+ years of manufacturing experience in screws and fasteners.
- ISO 9001-certified factory with rigorous inspection procedures.
- Full range of screw types: pan head, CSK, hex, truss, and custom.
- Strong R&D capability for OEM/ODM solutions.
- Fast delivery, stable supply, and competitive pricing.
- Long-term export partnerships with clients in over 40 countries.
Frequently Asked Questions (FAQ)
What is the difference between a countersunk head screw and a flat head screw?
Countersunk head screws (often called CSK or flat head screws) feature a flat outer surface and a conical bearing surface (typically 90 degrees) that allows the screw to sit flush with or below the surface of the material when installed.
What materials are available for your CSK screws?
We manufacture CSK screws in Carbon Steel, Stainless Steel (including SS201, SS304, SS316 grades), Alloy Steel, and optional materials such as Brass and Aluminum to suit different applications.
Do you support custom sizes and drive types?
Yes, we offer metric sizes from M2 to M24 and inch sizes from #4 to 1". Drive options include Phillips, Slotted, Torx, and Hex Socket. Custom lengths and thread pitches can also be manufactured.
What surface finishes do you provide for corrosion resistance?
We offer a wide range of surface finishes including Zinc Plated (Clear, Yellow, and Blue), Black Oxide, Nickel/Chrome Plated, Hot-Dip Galvanized (HDG), and Plain/Polished finishes.
What is your typical delivery lead time and shipping port?
Our standard lead time ranges from 7 to 30 days depending on the stock availability and overall order quantity. We ship directly from Tianjin Port, China.
Does Hebei Chudu offer custom packaging and branding?
Yes, we offer bulk packaging in cartons with pallets as well as custom solutions such as small boxes, plastic trays, and customized brand labeling.