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One of the world's leading manufacturers and suppliers of self-drilling screws and fasteners. |
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Pullout Values (Newtons) - Buildex Fasteners into Steel
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Screw Gauge/TPI |
Steel Thickness |
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0.55mm
Batten |
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0.75mm
Batten |
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1.2mm
Stud |
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1.5mm
Purlin |
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1.9mm
Purlin |
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2.4mm
Purlin |
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6.0mm
Hot Roll Steel |
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8.0mm
Hot Roll Steel |
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12mm
Hot Roll Steel |
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| 10g - 16 TPI Teks® |
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1,860 |
2,320 |
4,200 |
5,500 |
7,820 |
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| 10g - 24TPI Teks® |
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2,320 |
4,280 |
5,820 |
7,680 |
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| M6 RoofZips® |
1,520 |
2,480 |
3,280 |
5,240 |
5,940 |
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| 12g - 24 TPI Teks® |
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6,260 |
16,700* |
16,700* |
16,700* |
| Hex + Wafer Series 500 |
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| 12g - 14 TPI Teks® |
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1,980 |
3,040 |
5,160 |
6,960 |
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| Screw length longer than 20mm |
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| 12g - 14 TPI Teks® |
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2,200 |
4,080 |
5,420 |
7,360 |
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| Screw length 20mm or shorter |
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| 12g - 24 TPI Teks® |
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7,780 |
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| 14g - 10 TPI Teks® |
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2,600 |
4,680 |
6,500 |
8,100 |
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| 14g - 20 TPI Teks® |
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2,400 |
4,200 |
5,500 |
7,700 |
19,860 |
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* Axial tensile value of screw
Note: Appropriate safety factors should be applied for design purposes.
All values are averages obtained under laboratory conditions.
These figures apply to Buildex® (BX Head marked) products only.
Pullout Loads (Kilo Newtons kN)
The load required to pull the fastener out
of the material it is screwed into. |
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Pullout Values (Newtons) - Buildex Fasteners into Timber, Lightweight Battens & Steel
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Screw Gauge/TPI |
Thickness |
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0.55mm
Batten |
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0.75mm
Batten |
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1.2mm
Stud |
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1.5mm
Purlin |
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1.9mm
Purlin |
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F7 Pine
Timber |
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F17 Hard Wood |
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Ultra
Hard Timber |
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10g - 12 TPI (T17s) |
1,320 |
2,220 |
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5,700 |
6,000 |
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12g - 11 TPI (T17s) |
1,510 |
2,400 |
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3,900 |
6,460 |
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14g - 10 TPI (T17s) |
1,740 |
2,860 |
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3,820 |
6,980 |
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12 - 11 Batten Zips® |
1,540 |
2,420 |
2,680 |
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5,710 |
6,460 |
6,960 |
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M6 RoofZips® |
1,520 |
2,480 |
3,280 |
5,240 |
5,940 |
4,300 |
6,570 |
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| * Pullout values at 36mm embedment into timber |
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Note: Appropriate safety factors should be applied for design purposes.
All values are averages obtained under laboratory conditions.
These figures apply to Buildex® (BX Head marked) products only.
Mechanical Properties
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Screw Gauge/TPI |
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Single Shear
Strength (N) |
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Axial Tensile Strength (N) |
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Torsional Strength (Nm) |
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M6 RoofZips® |
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8,500 |
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15,400 |
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14.0 |
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| 10g - 16 TPI |
6,800 |
11,900 |
8.4 |
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| 10g - 24 TPI |
6,200 |
11,400 |
8.6 |
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| 12g - 11 TPI |
8,400 |
13,900 |
13.5 |
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| 12g - 14 TPI |
8,800 |
15,300 |
13.2 |
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| 12g - 24 TPI |
9,000 |
16,700 |
13.5 |
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| 14g - 10 TPI |
10,900 |
19,700 |
18.5 |
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| 14g - 20 TPI |
11,200 |
21,200 |
20,400 |
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Note: Appropriate safety factors should be applied for design purposes.
All values are averages obtained under laboratory conditions.
These figures apply to Buildex® (BX Head marked) products only.
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A. Single Shear Strength (N)
The shear load required to break the screw
B. Axial Tensile Strength (N)
The tensile load required to break the screw
C. Torsional Strength (Nm)
The torque required to break the screw |
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