These are just sheet metal screws. Go up to the next size and when you install, hand tighten them, don't try to use a power screwdriver. Another solution is, if you can reach behind where the screws are going to be placed, use a machine sew with a nylon lox-nut.
Also, if you are going into fiberglass, chamfer around the hole. This cuts the gelcoat away from contacting the screw threads and prevents spider cracking around the hole.
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2011 Outback 277RL
2013 F250 XLT Crew Cab 6.2L
Bitter Gun Owner
Bitter Clinger
Armed Infidel
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