#12 x 2-1/2" Square Drive Flat-Head S/D Screw w/Wings 410SS 100ct | F12C250FDC
Details
Self-Drilling Flat-Head Screw with Wings F12C250FDC These Self-Drilling Flat-Head Screw with Wings are 2" length, #12 thread diameter, 24 threads per inch with a #3 drill point, #3 square drive with .375" head diameter. 410 STAINLESS STEEL. Each box contains 100 screws.
Features:
• Flat countersunk head with self-countersinking nibs
• #3 square drive
• Machine screw thread, threaded full length
• Shank slot enhances thread formation in steel and removes exhaust
• Wings above drill point provide clearance hole in work piece so it won't climb up the shank, then break off as point engages the steel substrate
• 2 1?2" length for 2x wood; 2" length for 1" and 5?4" boards
• Type 410 stainless steel is coated for additional corrosion protection
410 Stainless Steel can be hardened through heat treatment, giving it the ability to drill through metal. It does not offer the same level of corrosion resistance of either Type 316 or 305 stainless steel.
WARNING: Hardened stainless-steel fasteners should not be used with steel framing in environments with high humidity, condensation or other moisture that will be present at the dissimilar-metal interface.
Applications Include:
Fastening wood, plywood and fiber cement to steel up to 0.209" thick.