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Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.
Drilling Screws for Joining Insulation to Metal
 |  |  |
Polypropylene Washers | Steel Washer |
Secure flat roof insulation and membrane materials. These screws have an oversized shank and threads to keep panels from lifting up in high wind. They drill and fasten in a single step, saving time and effort. The small point penetrates light gauge steel, oriented strand board (OSB), and plywood.
Length is measured from under the head.
Polypropylene Washers—Distribute the load to prevent screws from pulling through insulation.
Steel Washers—More durable than plastic, these washers prevent screws from pulling through insulation. Their hexagon shape works with feeding tools that speed up large-scale roofing jobs.
Tapping Screws | Polypropylene Washers | Steel Washers | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Head | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Lg. | Dia. | Ht. | Max. Drilling Thk. | Drive Size | Approx. Threads per In. | Certification | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | Pkg. Qty. | Pkg. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Black Epoxy-Coated Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 15 Screw Size | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 50 | 90694A814 | 000000 | 25 | 90320A380 | 000000 | 50 | 90320A350 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 25 | 90694A817 | 00000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 25 | 90694A820 | 00000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 20 | 90694A823 | 00000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 6" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 10 | 90694A826 | 0000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 7" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 10 | 90694A829 | 00000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 8" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 10 | 90694A831 | 00000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 10" | 0.435" | 0.118" | 0.047" | No. 3 | 13 | FM Approved | 5 | 90694A834 | 00000 | 25 | 90320A380 | 00000 | 50 | 90320A350 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
