Grade 12.9 Carbon Steel Countersunk Head Self Tapping Drywall Screw Black CSK Finish Various Sizes
Price:
0.05USD-0.15USD
MOQ:
10pcs
Delivery Time:
15days
Brand:
JIA SHAN
Product Description
Product Overview
High-performance countersunk head self-tapping drywall screws manufactured from Grade 12.9 carbon steel with black phosphating finish. These industrial-grade fasteners deliver exceptional strength and reliability for demanding construction and mechanical applications.
Technical Specifications
| Attribute | Value |
|---|---|
| Material | Carbon Steel Grade 12.9 |
| Finish | Black Phosphating |
| Head Type | Countersunk (CSK) |
| Thread Type | Coarse, Self-Tapping |
| Standards | DIN, ASME, ANSI, ISO |
| Certifications | ISO9001:2008, ROHS |
| Available Sizes | Various INCH and Metric system dimensions |
Key Features & Benefits
- Superior lubricity for faster penetration speed and reduced driving torque
- Black phosphating finish provides excellent attack speed performance
- Precision Grade 6g (Class 2) threading for industrial applications
- Single-line coarse-thread design enables faster tapping speed
- Enhanced wood preservation compared to fine-threaded alternatives
- Ideal replacement for double-line fine-threaded screws in wooden keel connections
Industry Applications
| Industry | Use Cases |
|---|---|
| Construction | Building structures, drywall installation, wooden keel connections |
| Mechanical | Connecting mechanical parts, engines, transmissions, structural assemblies |
| Automotive | High-strength applications in heavy-duty machinery and equipment |
| Energy | Power generation equipment and transmission line fixtures |
Product Images
Frequently Asked Questions
Are you a trading company or manufacturer?
We are the factory and OEM services are available.
How long is your delivery time?
Typically 7-10 days for in-stock items, or 15-20 days for custom orders, depending on quantity.
Do you provide samples? Is it free or extra?
Yes, we offer free samples but customers are responsible for freight costs.
What are your payment terms?
30% T/T in advance, balance before shipment or L/C.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Hunan Jia Shan Hardware Tech Co., Ltd.
Location
1st Floor,Building 8 Phase II Factory Building,No.8 Lutian Road,Lugu Base,Lugu Street,Xiangjiang New Area,Hunan Province.Postal Code:410205
Contact Person
Tan