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Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws

Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws

  • Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws
  • Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws
  • Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws
  • Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws
Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws
Product Details:
Place of Origin: CN
Brand Name: HNF
Certification: ISO9001
Model Number: ST2.9-ST6.3
Payment & Shipping Terms:
Minimum Order Quantity: 20000pcs
Price: Negotiation
Packaging Details: Small Box+Carton+Pallet
Delivery Time: 5-15days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 500ton per month
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Detailed Product Description
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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Self Tapping Screws

Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping 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 

 

D P a max dk max k max y hole min hole max
ST 2.2 0.8000 0.8000 4.3000 1.3000 2.0000 4.5000 16.0000
ST 2.9 1.1000 1.1000 5.5000 1.7000 2.6000 6.5000 19.0000
ST 3.5 1.3000 1.3000 6.8000 2.1000 3.2000 9.5000 25.0000
ST 3.9 1.3000 1.3000 7.5000 2.3000 3.5000 9.5000 28.0000
ST 4.2 1.4000 1.4000 8.1000 2.5000 3.7000 9.5000 32.0000
ST 4.8 1.6000 1.6000 9.5000 3.0000 4.3000 9.5000 32.0000
ST 5.5 1.8000 1.8000 10.8000 3.4000 5.0000 13.0000 38.0000
ST 6.3 1.8000 1.8000 12.4000 3.8000 6.0000 13.0000 38.0000
ST8 2.1000 2.1000 - 4.2000 7.5000 16.0000 50.0000
ST 9.5 2.1000 2.1000 - 4.6000 8.0000 19.0000 50.0000

 

Material Stainless steel (ss416, ss410, ss316, ss 304, ss201)
Surface Plain, nickel plated, passivatio
Size St2.2-St6.3
Mechanical properties A2-70, A4-80
Packing Bulk 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
 

Stainless steel 304 316 Flat Head Metal Single Thread Self Tapping Screws 0

Contact Details
Jiaxing Haina Fastener Co.,Limited

Contact Person: Liz

Tel: +8618957314886

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