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Self Tapping Thread M4.5 Pan Washer Head Screws for Sheet Metal Galvanized Steel

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Self Tapping Thread M4.5 Pan Washer Head Screws for Sheet Metal Galvanized Steel

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Large Image :  Self Tapping Thread M4.5 Pan Washer Head Screws for Sheet Metal Galvanized Steel

Product Details:
Place of Origin: China
Brand Name: VDL
Certification: ISO 9001
Model Number: SPWS4220
Payment & Shipping Terms:
Minimum Order Quantity: Negotiation
Price: Negotiation
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
Delivery Time: 30 days
Payment Terms: L/C, T/T, Western Union , Paypal
Supply Ability: 500, 000 pcs per month
Detailed Product Description
Material: Carbon Steel Property Class: 6.8
Hardness: HRC 35 Finish: Zinc
Diameter: 4.2 Length: 20
Drive: PH Head: PW
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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

 

Self Tapping Thread M4.5 Pan Washer Head Screws for Sheet Metal Galvanized Steel 0

 

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 .

Self Tapping Thread M4.5 Pan Washer Head Screws for Sheet Metal Galvanized Steel 1

 

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

 

Contact Details
VEDALI HARDWARE CO., LTD

Contact Person: MR.LIN

Tel: +8613556778272

Send your inquiry directly to us (0 / 3000)