Metal Sales Soffit Panel - Manual (Page 22)

© Metal Sales Manufacturing Corporation / Subject to change without notice, effective 02/09.
21
ARCHITECTURAL
To prevent wobbling - Make sure fastener head is completely engaged in the socket. If the head does not go all the way in
the socket - tap the magnet deeper into the socket to allow full head engagement. Metal chips will build up from drilling and
should be removed from time to time.
Protect drill point - Push only hard enough on the screw gun to engage clutch. This prevents excess friction and burn out of
the drill point. Correct pressure will allow screw to drill and tap without binding.
Drilling through sheet and insulation - Ease up on pressure when drilling through insulation to avoid striking the purlin or
girt with the point - apply more pressure after drill point contacts purlin or girt.
Drilling through purlin overlaps - Drilling through lapped purlins requires extra care. Excessive voids between purlins
sometimes damages drill points and two self-drillers might be necessary to complete the operation. It is sometimes advanta-
geous to predrill.
Recommended Tool Type - Use depth locating nose or adjustable clutch on screw gun to prevent overdrilling and strip out.
Do not use impact tools or runners.
Seating the washer - $SSO\ VXI¿FLHQW WRUTXH WR VHDW WKH ZDVKHU GR QRW RYHUGULYH WKH IDVWHQHU
TOO LOOSE
Sealing material is not visible;
not enough compression to
seal properly.
CORRECT
Sealing material slightly vis-
ible at edge of metal washer.
Assembly is watertight.
TOO TIGHT
Metal washer deformed;
sealing material pressed
beyond washer edge.
WOODSCREW
FASTENER INSTALLATION TECHNIQUE
DESIGN / INSTALLATION CONSIDERATIONS