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Stainless Steel Self Drilling Screw
 
Material Technology
Stitchers
Light Section
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Heavy Section 
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Halter Fixings
Medium Section 
Countersunk Wing Screws 
1.2mm - 6mm
Medium Section 
Countersunk Wing Screws 
1.5mm - 6mm
Light Section Countersunk  Wing Screws
Technical Information
 

Technical Information

  Please note that the following figures have been achieved under laboratory conditions and do not allow for any safety factors. Testing cannot take into consideration all possible combinations of screws and materials
   
 

Torsional Strength
ISO No.
Ø (mm)
ISO No.8

4.2
ISO No.10

4.8
ISO No.12

5.5
ISO No.14

6.3
Inch - lbs 42.5 84 130 150
Nm 4.8 7.0 10.5 13.8



Pull-out Strength
Screw Style¹ Drill-Point No. 1
Steel Thickness
mm
0.63 1.00 1.25
LBS 235 360 575
kN 1.05 1.60 2.56


Screw Style² Drill-Point No. 2
Steel Thickness
mm
1.0 1.5 2.0 2.5 3.0
LBS 255 455 685 935 1185
kN 1.14 2.02 3.04 4.15 5.27


Screw Style² Drill-Point No. 5
Steel Thickness
mm
5.0 6.0
LBS 2140 2860
N 9.51 12.72*
Pull-over values
(With 16mm washer)
Steel Thickness
mm
lbs kn
0.63 1085 4.85
0.75 1330 5.95
1.00 1930 8.62
1.25 2195 9.79



Shear Strength
ISO No.

Ø (mm)
ISO
No.8
4.2
ISO
No.10
4.8
ISO
No.12
5.5
ISO
No.12
6.3
lbs 940 1245 1640 2410
kN 4.17 5.53 7.28 10.71



Tensile Strength
ISO No.

Ø (mm)
ISO
No.8
4.2
ISO
No.10
4.8
ISO
No.12
5.5
ISO
No.14
6.3
lbs 1440 1780 2340 3440
kN 6.4 7.9 10.4 15.3



Recommended Drill Speed
Recommended drill speed for screw guns under axial load
Screw Diameter Minimum Maximum
up to Ø 4.8
up to Ø 5.5
up to Ø 6.3
1800
1000
1000
2200
1600
1600


* Over 6mm limited due to Tensile Strength.
1 Values refer to diameter 4.8mm.
2 Values refer to diameter 5.5mm.

Test results have been obtained in conjunction with St-37 steel by an independent test laboratory.

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