Oversized Phillips head bolts

[SalsaCaliente]

The front cleat on my Catalina 36 is mounting using 4 large heavy stainless steel bolts. They have a large Phillips head slots on the top and then under the deck use washers and bolts.

The problem I am having is that the largest phillips head bit I can find is a #3 which is dwarfed by the slot and I cannot get enough purchase on the bolt to remove the bolts underneath. It there a source for oversized phillips head bits that anyone knows of? I have tried marine stores that sell the same bolts, numerous specialty bolt and tool sellers but nothing has turned up.

[meridian28]

There are #4's available.

[Cheechako]

There are big ones available. Not sure where to steer you though. I've got a huge Phillips screwdriver with a hex flat section to put your wrench on, not sure where it came from though.

[Reefmagnet]

Impact driver sets usually include large philips bits

[Blue Stocking]

Look for the black sockets and accessories in the tools section.

[goboatingnow]

I used work for a competitior to Phillips Screw. I was warned always to call them "crossheads". !!!

same with Allen keys, thats was banned too.!!

Dave

[Fortytwo]

McMaster-Carr

[SalsaCaliente]

Thanks for the link!

[GaryMayo]

Autoparts store. Get a cheap impact screwdriver set.

If you can get the hang of using one, that and proper technique will remove about anything.