- Overview
- Product Description
- Product Parameters
- Product Details
- Customized Process
- Company Profile
- Certifications
- Customer Visit
- Our Advantages
Basic Info.
Packaging & Delivery
Product Description
| TGR/Tsingri SS316+SCM435 Bi Metal Ruspert Surface Hex Washer Double Thread Self Tapping Roof Screws | |
 | Material |
| SS316+SCM435 Or Customized | |
| Surface Treatment | |
| Ruspert 500-3000H, Dacromet, Customized | |
| Size | |
| 4.8/5/5/6.3, 25-300mm or Customized Size | |
| Quality | |
| Sample Testing Or Third-party Inspection | |
| Price | |
| Customized Production With Big Discount | |
| Lead Time | |
| In Stock Within 7 Days, Cusomitzed 15-30 Days | |
| Diameter(mm) | Self-drilling Capability(mm) | Effective Fixed Thickness(mm) | Washer | Screw Size | Surface |
| 6.3mm/14# | 3.0 | <6 | EPDM | 1/4-14x3/4" | Ruspert 500H-3000H |
5.5mm/12# | 7.0 | <10 | EPDM | 5.5-14x1" | Ruspert 500H-3000H |
| 7.0 | <16 | EPDM | 5.5-14x1-1/4" | Ruspert 500H-3000H | |
| 7.0 | <22 | EPDM | 5.5-14x1-1/2" | Ruspert 500H-3000H |
Surface Coating
| AS3566 Austrulian Standard Building Screws | ||||
| Corrsion Resistance | Class2 | Class3 | Class4 | Class4+ |
| Coating Type | Zinc+ Organic Coating (Ruspert) | Zinc+ Organic Coating (Ruspert) | Zinc+ Organic Coating (Ruspert) | Zinc+ Organic Coating (Ruspert) |
| Salt Spray Test | 500H | 1000H | 2000H | 3000H+ |
| Kesternich Test | 5 Cycle | 7 Cycle | 15 Cycle | 25 Cycle |
SGS Test Report
Why Choose Bi-Metal Screws
1. Hex Washer Flange Head
 | Cold Heading Hexagon Flanged Head Tapping Drilling Operation Smoothly Not Burst |
2. Sharp Drill Point And Tapping Thread
| SCM435 #3 Drill Point Deep Thread With Thread Slot Uniform Force Easy Tapping With Strong Locking Force |  |
3. Flat Surface Treatment, No Burrs
 | Smooth Clean And Burr-Free Surface Treatment Exquisite Workmanship Strong And Sturdy Ruspert 500-3000H Surface Not Easy To Corrode And Rust |
| Please Send The Below Customized Information To Us For Pricing | |||
| Product | Product No./Picture/Drawing | Size | International Srandard No./Drawing |
| Quantity | PCS/Tons | Material | As Your Requirement |
| Surface | As Your Requirement | Lead Time | Tell Us Your Requirement |
| Address | Shipping address With Post Code | Terms | EXW/FOB/CIF/DDU etc., By Air/By Sea |
Our Production Capacity
| Processing Equipment | Cold Heading Machine, Thread Rolling Machine, Tooth Rolling Machine, Heat Treatment Equipment |
| Grouped Equipment | CNC, Lathe, Milling Machine, Drilling Machina, Packing Machine |
| Testing Equipment | Optical Screening Equipment, Hardness Testing Equipment, Salt Spray Testing Equipment, Film Thickness Testing Equipment, Torque Testing Equipment, |
| Material | 1016, 1018, 1022, 10B21, 1035, 1045, SCM435, 40CR, Aluminum 1100/6061/6063, Brass 65/68/72, Copper, SUS201/303/303/304/316/410, Customized Material |
| Secondary Processing | Head Trimming, Edge Milling, Tooth Milling, Polishing, Grinding, Tail Cutting, Drilling, Tail Clipping, Wear EPDM Washer, Beam Tailing, Chamfering, Bending, Wire Cutting, etc. |
| Surface Treatment | Environmental Protection Galvanized (Blue Zinc Plated, Yellow Zinc Plated, White Zinc Plated,Color Zinc Plated, Nickel Plated, Color Painted, ), Black Phosphated, Gray Phosphated, Color Oxided, Hot Dip Galvanized, Dacromet, Ruspert, etc. |
Our Main Products
Tsingri as a professional manufacture, we only produce self-tapping screws and self-drilling screws, Bi-metal Screws.
Our main products focus on Roofing Construction Fasteners, Timber Construction Screws, Concrete Construction Screws. Roofing Construction Fasteners includes Metal Roofing Screws and Insulation Roofing Fasteners and Plates.
Our company is headquartered in Shanghai, with factories in Jiangsu and Zhejiang, and we also operate sales and marketing offices in USA, Qatar, Vietnam, Brazil.
1. More than 30 years professional manufacturer of self drilling scews and self tapping screws in China.
2. Three wholly owned subsidiary of factories and five warehouse stocking locations.
3. Professtional international sales team and after sales service.
4. Developed industrial belts and convenient transportation make costs lower and logistics faster.
Our Service
a) Good after-sale service, all questions will be replied within 12 hours.
b) Customized design is available. ODM&OEM are welcomed.
c) We can provide free sample, custmer should pay the freight first.
d) Convenient transportation and fast delivery, all available shipping ways could be applied, by express, air or sea.
e) High quality and most competitive price.
f) Advanced produce and inspecting equipments.