Polytops Screws Range & Specifications
Polytop© Plastic Top Screw Range |
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| Screw Type | Materials | Gauge | Length |
|---|---|---|---|
| Wood Screw | Zinc plated |
6, 8, 10, 12 | 10mm - 65mm |
| A2 Stainless Steel |
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| A4 Stainless Steel |
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| Self Tapping | Zinc plated |
6, 8, 10, 12 | 10mm - 65mm |
| A2 Stainless Steel |
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| A4 Stainless Steel |
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| Self Drilling |
Zinc plated |
6, 8, 10, 12 | 10mm - 65mm |
| A2 Stainless Steel |
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| A4 Stainless Steel |
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| Machine Screws |
Zinc plated |
M3, M4, M5, M6 | |
| A2 Stainless Steel |
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| A4 Stainless Steel |
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Polytop © Numberplate Plastic Top Screw Range |
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| Material | Colours Available | Gauge | Length |
| Zinc Plated |
Black, White, Yellow, Blue |
10 |
18mm, 24mm |
Polytop© Screw Torque Test |
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| Sample | Substrate | Pilot Hole | Required Torque | Failed Torque |
|---|---|---|---|---|
| 8 gauge x 12mm |
Wood End Grain |
2.5mm | 0.7 N.m |
3.6 N.m |
| 8 gauge x 30mm |
Wood End Grain |
2.5mm | 0.9 N.m | 4.1 N.m |
| 8 gauge x 12mm |
Wood Cross Grain |
2.5mm | 0.8 N.m |
3.8 N.m |
| 8 gauge x 30mm |
Wood Cross Grain |
2.5mm | 0.9 N.m |
4.0 N.m |
| 8 gauge x 12mm |
3mm Mild Steel Plate |
3.5mm | 2.7 N.m |
4.0 N.m |
| 8 gauge x 30mm |
3mm Mild Steel Plate |
3.5mm | 2.9 N.m |
3.7 N.m |
The tests were conducted using calibrated torque wrenches S/No. TF/100 (1-35 lbs.in.) and S/No. TF99 (240 lbs.in.)
