Payment Terms | L/C, T/T, Western Union , Paypal |
Supply Ability | 500, 000 pcs per month |
Delivery Time | 30 days |
Packaging Details | 500 pcs each bag , 10 bags each carton with dimension 20 X 22 X 20 cm , 500 cartons to a 20 ft container |
Material | Carbon Steel |
Property Class | 6.8 |
Hardness | HRC 35 |
Finish | Zinc |
Diameter | 4.2 |
Length | 20 |
Drive | PH |
Head | PW |
Brand Name | VDL |
Model Number | SPWS4220 |
Certification | ISO 9001 |
Place of Origin | China |
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Product Specification
Payment Terms | L/C, T/T, Western Union , Paypal | Supply Ability | 500, 000 pcs per month |
Delivery Time | 30 days | Packaging Details | 500 pcs each bag , 10 bags each carton with dimension 20 X 22 X 20 cm , 500 cartons to a 20 ft container |
Material | Carbon Steel | Property Class | 6.8 |
Hardness | HRC 35 | Finish | Zinc |
Diameter | 4.2 | Length | 20 |
Drive | PH | Head | PW |
Brand Name | VDL | Model Number | SPWS4220 |
Certification | ISO 9001 | Place of Origin | China |
High Light | hardware screws ,hardware fasteners |
Self Tapping Thread M4.5 Pan Washer Head Screws for Sheet Metal Galvanized Steel
Self tapping threads pan wafer head .sheet metal screws
Phillips drive head with NO.2
Material : Harden Steel
Sheet metal screws are made from harden steel with anneal treatment to secure metal sheets , 30 degree full tapping threads to the bottom of the head and bigger washer head diameter than shaft can secure metal sheets more tight .
● High tensile strength
● Fast drilling threads
● Labor efficient
● Torsional resistance
● Easy operation
Specification
Thread diameter | 4.5 |
Thread length | 20 |
Head diameter | 13 |
Head height | 3.2 |
Core hardness | HV350 |
Case hardness | HV500 |
finishing | Blue zinc |
Available sheet thickness | 3.2 |
Material
Sheet metal screws are normally made from harden steel material with grade 6.8 to 8.8 . it is available for other materials
Carbon steel : 1018 , 1022 , 1035 , 1045 , SCM 435
stainless steel SUS 201 , SUS303 , SUS 304 ,SUS 316 , SUS 416 ,SUS 430 and SUS 420 .
When a sheet metal screw is used for securing sheets , the thickness of sheet metal has to be suitable for screw or sheet metal screws can not drill into sheet or be broken .
d | 6# ( 3.5 ) | 7# ( 3.9 ) | 8# ( 4.2 ) | 10# (4.8 ) | 12# ( 5.5 ) | 14# ( 6.3 ) |
Sheet thickness | 1.85-1.95 | 3.12-3.23 | 4.68-4.84 | |||
Hole Dia. | 2.95 | 3.26 | 3.45 | 4.04 | 4.76 | 5.5 |
Hole tolerance | ±0.025 | ±0.025 | ±0.025 | ±0.025 | ±0.025 | ±0.025 |
Generally , sheet metal screws are plated in white ,blue and yellow zinc on the surface , you can choose more finishing according to requests .
Finishing | Colors | Thickness | Charicteristic |
Zinc | Blue ,White ,Black ,Yellow | 5-17μm | Bright and smooth surface ,corrosion resistance |
Nickel | Silver | 1~3μm | Wear resistance ,bright appearance , anti-corrosion |
Polishing | Silver | 0.01mm ( reference ) | Improving brightness of surface |
Tin | Silver | 0.13~1.27μm | Good ductility ,corrosion resistance ,lower melting point ,eco-friendly ,brightness |
Brass | Copper | 5gm~8gm | Good dispersibility ,Bright appearance |
Dacromet | Grey | 4-8μm | High corrosion resistance , No hydrogen embrittlement ,Heat resistance ,Easy to plated more ,eco-friendly |
Chrome | Silver white | 0.25~0.5μm | Harden surface ,Bright surface ,Heat resistance ,Wear resistance Corrosion resistance and eco-friendly
|
Application
Sheet metal screws are normally applied to metal sheets those are used for
▲ Metal panels
▲ Metal proof
▲ Windows
▲ Doors
▲ Barrier
▲ Aluminum pipes
Features for Sheet Metal Screws
◆ Partial threads
◆ High torsinal strength
◆ Harden material
◆ Good drilling point
◆ Heavy Loading
◆ Eco-friendly
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2000
Total Annual:
2000,000-3500,000
Employee Number:
50~120
Ecer Certification:
Verified Supplier
With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demand... With many years reputation in hardware filed , VEDALI HARDWARE CO., LTD has entered hardware filed and gained much development in these years , we have over 100 employees and 20 engineers on researching and development , and several branches that are specialized in different hardware for vast demand...
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