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Fastener GUIDE May 2026Exposed Fastener PanelsInstallation Type Placement - A Panel to Substrate Placement - B Panel LapINSTALLATION OVER STEEL FRAMING#14 MILLED POINT WOODGRIPPER#12 / #14 SELF DRILLER 12GA-26GA#9 WOODGRIPPER #14 STITCH/LAP 22GA-29GAA A A A AB BConcealed Fastener PanelsInstallation Type Placement - A Panel to SubstrateINSTALLATION OVER PLYWOOD/OSBINSTALLATION OVER STEEL FRAMINGTrim Attachment#14 STITCH/LAP 22GA-29GA-Trim to trim-Trim to panelOther optionsRivets-Trim to trim (Not water tight)Roofing nail-Trims installed prior to panels.AA#10 Panhead/Wafer Quad DriveProlok 12 & 16#10 ACQ PanheadHF - Proboard - Clip style profiles#10 Panhead self drillerCORRECTT OO LOOSE TOO TIGHTNeoprene washer slightlyvisible at edge of metalwasher. Assembly isweather tight.Neoprene washer notvisible, not enoughcompression to sealproperly.Metal washer deformed.Neoprene washerextruded beyond edgeof washer.CORRECT TOO LOOSE TOO TIGHTGasketed FastenersINSTALLATION OVER PLYWOOD/OSBINSTALLATION OVER LUMBER