Description
These hex head type 17 screws with seal are designed for self drilling into timber. They come in class 3 & 4 galvanised steel or grade 316 stainless steel and have a watertight neo washer.
Features:
- Neoprene washer provides a watertight seal which is ideal for roofers applications
- Designed for drilling into timber – no need to drill a pilot hole
- Made from class 3 & 4 galvanised steel for outdoor use, or grade 316 stainless steel
Hex head type 17 screws with seal – quick reference
| Code | Size | Specs | Qty |
| T17HEXC3N310020 | 10g-12tpi x 20mm | gal – C3 | 1000 |
| T17HEXC3N312030 | 12g-11tpi x 30mm | gal – C3 | 1000 |
| T17HEXC3N312035 | 12g-11tpi x 35mm | gal – C3 | 1000 |
| T17HEXC3N312050 | 12g-11tpi x 50mm | gal – C3 | 1000 |
| T17HEXC3N314065 | 14g-10tpi x 65mm | gal – C3 | 500 |
| T17HEXC3N412025 | 12g-11tpi x 25mm | gal – C4 | 1000 |
| T17HEXC3N412030 | 12g-11tpi x 30mm | gal – C4 | 1000 |
| T17HEXC3N412035 | 12g-11tpi x 35mm | gal – C4 | 1000 |
| T17HEXC3N412040 | 12g-11tpi x 40mm | gal – C4 | 1000 |
| T17HEXC3N412050 | 12g-11tpi x 50mm | gal – C4 | 1000 |
| T17HEXC3N412065 | 12g-11tpi x 65mm | gal – C4 | 1000 |
| T17HEXC3N414025 | 14g-10tpi x 25mm | gal – C4 | 1000 |
| T17HEXC3N414040 | 14g-10tpi x 40mm | gal – C4 | 1000 |
| T17HEXC3N414050 | 14g-10tpi x 50mm | gal – C4 | 1000 |
| T17HEXC3N414065 | 14g-10tpi x 65mm | gal – C4 | 500 |
| T17HEXC3N414075 | 14g-10tpi x 75mm | gal – C4 | 500 |
| T17HEXC3N414090 | 14g-10tpi x 90mm | gal – C4 | 250 |
| T17HEXC3N414100 | 14g-10tpi x 100mm | gal – C4 | 250 |
| T17HEXC3N414115 | 14g-10tpi x 115mm | gal – C4 | 250 |
| T17HEXC3N414125 | 14g-10tpi x 125mm | gal – C4 | 250 |
| T17HEXC3N414150 | 14g-10tpi x 150mm | gal – C4 | 250 |
| T17HEXC3N414175 | 14g-10tpi x 175mm | gal – C4 | 250 |
| T17HEXC3N414250 | 14g-10tpi x 250mm | gal – C4 | 200 |
| T17HEXC3N612025 | 12g-11tpi x 25mm | SS 316 | 1000 |
| T17HEXC3N612050 | 12g-11tpi x 50mm | SS 316 | 200 |
| T17HEXC3N614025 | 14g-10tpi x 25mm | SS 316 | 1000 |
| T17HEXC3N614050 | 14g-10tpi x 50mm | SS 316 | 500 |
| T17HEXC3N614075 | 14g-10tpi x 75mm | SS 316 | 500 |
These screws are often called Type 17s or T17s. You can browse our full range of self drilling screws (SDS) here.







