Direct Fastening Technical Guide , Edition 24
3.6 Screw Fastening Systems .......................................................... 210
3.6.1 Self-Drilling Screw Fastener Selection and Design .................................. 210 3.6.1.1 Drill Point Selection .................................................. 210 3.6.1.2 Thread Selection .................................................... 211 3.6.1.3 Head Style Selection ................................................. 212 3.6.1.4 Sealing Criteria ...................................................... 212 3.6.1.5 Length Selection .................................................... 212 3.6.1.6 Corrosion Resistance Guidelines ........................................ 213 3.6.1.7 Hilti Screw Fastener Installation Instructions ............................... 214
3.6.2 Self-Drilling Screws .......................................................... 215 Self-drilling screws available in a variety of head styles , thread lengths and drill-flute lengths for screw diameters # 6 through 1 / 4 " meeting ASTM C1513 and SAE J78 or ASTM C954
3.6.3 HVAC Screws ............................................................... 222 Screws specifically designed for HVAC applications , including the innovative Zip Screws with HyperThread technology
3.6.4 |
Kwik-Flex Self-Drilling Screws .................................................. |
226 |
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Self-drilling screws specifically designed to resist HASCC that can be caused by stress , dissimilar metals and moisture , available in HWH head style and diameters # 10 through 5 / 16 " |
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3.6.5 |
Bi-Metal Kwik-Flex Self-Drilling Screws .......................................... |
230 |
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Stainless steel screws with carbon steel drill points providing the drilling capacity of a standard self-drilling screw with the corrosion resistance of a 300 series stainless steel fastener specially designed to resist the effects of HASCC |
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4.1 Approvals and Listings ................................................................ 233 4.2 Reference Standards .................................................................. 234 4.3 Technical References .................................................................. 236
Terms and conditions of sale ........................................................... 237
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