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has proven that Dril-Flex screws provide the same resistance to hydrogen-assisted cracking (HAC) as a Grade 5 screw
This product has been replaced by the STB2
Hardened Steel Tapping Threads and Point Fused onto an 18-8 Stainless Steel Shank and Head 1 The load-bearing length is the length of 300 series stainless under the hex head or including the flat head
The actual outside diameter of the screen tube is LARGER than the rod diameter
Drilling Depth
ITW Buildex #8-18 x 1/2" Hex Washer Head Teks Steel to Steel Self-Drilling (10000 per box) 1/4 X 2-3/4 has proven that Dril-Flex screwsITW Buildex Tek Screws Part #1196200 Teks Drill Point Non walking, cutting edges, pigtail reduction Engages material faster, drills with less effort, safer installation Load bearing area Selectively hardened to retain strength and ductility performance similar to a Grade 5 bolt Resists shear failure due to loading and different expansion coefficients in dissimilar metals Installs faster Drills and taps faster with fewer stalls Reduces installation
