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Hardened Steel Self Tapping Flat Head Metal Screws Single Thread Passivation Color

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Jiaxing Haina Fastener Co.,Limited
Country/Region: China
Tel: 86-573-82272371
Contact Person:
Mr TonyFang

Hardened Steel Self Tapping Flat Head Metal Screws Single Thread Passivation Color

Brand Name : HNF
Model Number : ST2.9-ST6.3
Certification : ISO9001
Place of Origin : CN
MOQ : 20000pcs
Price : Negotiation
Payment Terms : L/C, T/T, Western Union
Supply Ability : 500ton per month
Delivery Time : 5-15days
Packaging Details : Small Box+Carton+Pallet
Head : Csk Head/Pan Head
Second Standard : ISO7050
Diameter : ST2.2,ST2.9,ST3.5,ST3.9,ST4.2,ST4.8,ST5.5,ST6.3,ST8,ST9.5
Length : 6.5,9.5,13,16,19,25,30,32,38,50,80,100
Process : Cold Forging
Thread line : single line
Color : Plain or Passivation
Class : 410 304 316
Material : Stainless Steel
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Stainless steel 410 304 316 ST4.8* 80MM ST 4.8*100MM CSK head Self Tapping Metal Screws

Description:

As well as the standard self tapping thread forms another type is available known as a thread forming screw. These screw into a pre-drilled hole and form an actual recognised screw thread similar to that provided by a separate machine tapping operation ie M4, M5 etc.

Self tapping screws are specially designed screws which produce their own mating thread into the material used as they are being applied into a pre-drilled or punched or moulded holes.

Mainly used in thin sheet material they can also be used in some soft plastics and Aluminium.

Main advantages are easier and quicker assembly (no holes to tap as with machine screws) good resistance to vibration due to closeness of thread engagement and access is only required from one side.

Standard self tapping screws have a pointed end Type AB (Form C) which gives a lead into the hole provided. A limited range is also available with a blunt end Type B (Form F) these are mainly used in blind hole applications such as Aluminium castings etc.

Drives available tend to be Pozidrive cross recess or 6 lobe TX drive. Slotted drives are still available on request but supplies can be difficult as the former drives are more popular due to ease of automatic assembly and driver slippage (Cam out)

Common Head styles are Pan, Countersunk, Raised Countersunk.

Hexagon head type also available. A cylindrical Socket (allen key) drive is also available in a limited range of sizes.

Lastly there are screws known as Self Drilling Screws. These screws have an integral drill point on the end. They then both drill tap a thread into Aluminium in one operation.


Specification


DPa maxdk maxk maxyhole minhole max
ST 2.20.80000.80004.30001.30002.00004.500016.0000
ST 2.91.10001.10005.50001.70002.60006.500019.0000
ST 3.51.30001.30006.80002.10003.20009.500025.0000
ST 3.91.30001.30007.50002.30003.50009.500028.0000
ST 4.21.40001.40008.10002.50003.70009.500032.0000
ST 4.81.60001.60009.50003.00004.30009.500032.0000
ST 5.51.80001.800010.80003.40005.000013.000038.0000
ST 6.31.80001.800012.40003.80006.000013.000038.0000
ST82.10002.1000-4.20007.500016.000050.0000
ST 9.52.10002.1000-4.60008.000019.000050.0000

MaterialStainless steel (ss416, ss410, ss316, ss 304, ss201)
SurfacePlain, nickel plated, passivatio
SizeSt2.2-St6.3
Mechanical propertiesA2-70, A4-80
PackingBulk packing and box packing and according to customer's requested then in pallet.


Packing Details:
1.Paper Carton Size: 25*16*25CM
2.Wooden Pallet/ Wooden Case Size: 110*90*80CM
3.Color Printed Box&Cartons can be made per customers' desire.

4.Plastic Bag


Product Tags:

Black Self Tapping Screws

      

Pan Head Framing Screws

      
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