Roofing Fastening Systems
Ullrich supply a wide range of roofing fasteners including aluminium hook bolts, self-tapping coach screws, aluminium drive nails, aluminium roundhead screws, angular and curved profile washers, domed and neoprene RB200 washers, mushroom-head seam bolts and flat aluminium washers and flat neoprene washers.
| Aluminium Hook Bolts | |
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For fixing sheet to steel purlins and side rails. 80mm minØ, threaded min 38mm. Length and shape to order. Also supplied as straight bolt for shaping on-site. |
| 1. Self-tapping coach screws | |
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For fixing sheet to purlins and side rails. Stainless
steel with prefitted Neoprene washers. Twist-drill threads, hardened
points.
Tek®: For drilling into steel up to 6.4mm thick. Length of the drilling flutes determine the amount of drilling chip expelled and therefore the material thickness able to be drilled. Consult Ullrich Technical Support for data on drilling capacity of various screw sizes, and the diameter, length and washer system to suit selected sheet and purlin material. Type 17: For fastening metal roofing sheet into timber. Screw threads extend right to the point to pull the screw into the timber as it is driven, reducing operator pressure and preventing over-running (stripping of screw thread due to insufficient pressure). |
| 2. Aluminium drive nails | |
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For fixing sheet to timber purlins and side rails or steel purlins with nailing strips. Light-trough profiles: 64mm min length. Deep-trough profiles: 90mm min length. |
| 3. Aluminium roundhead screws | |
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For fixing sheet to timber purlins and side rails or steel purlins with nailing strips. Light-trough profiles: 63.5mm min length. Deep-trough profiles: 88.9mm min length. |
| 4. Angular profile washers | |
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For use with fasteners 1, 2 or 3 to fix angular profiled sheet. Aluminium, neoprene-lined. stucco embossed. 1.2mm minimum thickness. |
| 5. Curved profile washer | |
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For use with fasteners 1, 2 or 3 to fix curved profiled sheet. Aluminium. 1.2mm minimum thickness. |
| 6. Neoprene RB200 washer | |
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For use under curved profile washer (5) in conjunction with fasteners 1, 2 or 3. |
| 7. Domed aluminium washer | |
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For use with neoprene ring (8) and fasteners 2 or 3 to fix curved profile sheet. Material thickness 0.7mm or 0.9mm. |
| 8. Neoprene Ring | |
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For use under domed aluminium washer, in conjunction with fasteners 2 or 3 to fix curved profile sheet. |
| 9. Mushroom-head seam bolt | |
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For side-lap fastening of sheet to side rails. Stainless steel. |
| 10. Flat aluminium washer | |
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For use in conjunction with mushroom head seam bolt and flat Neoprene washer. |
| 11. Flat Neoprene washer | |
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For use in conjunction with mushroom head seam bolt and flat aluminium washer. |
Important Information on roofing fixings
Verify with Ullrich Technical Support that fastener durability is at least equal to the selected substrate. Continuous sheet lengths of over 8 metres require special sliding fixings to allow for thermal movement (eg: LT7 aluminium industrial profile: 1.12mm per metre at 50°C). All dimensions shown in mm. Diagrams are schematic and not intended for design.
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