I 'think' they are 5mm diamter thread.
don't know the thread pitch ..
but it's the common 5mm thread, and pretty fine thread.
good hardware store might have some.

----- Original Message -----
From: "Marius Strom" <marstrom@MICROSOFT.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, July 09, 2010 2:40 PM
Subject: Re: battery compartment

> Speaking of... there's been a lot of talk about the right screw to hold
> the battery bracket, but my screw-down lid is missing all its screws and
> rattles a bit.  Does anyone know what to use here?  I've been pondering
> just going to the Home Depot and grabbing some random self-tapping metal
> screws as they'd probably suffice, but would be nice to have the right
> stuff in place.
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> mark drillock
> Sent: Friday, July 09, 2010 12:31 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: battery compartment
>
> The sealed compartments with screw down lids were for full campers all
> years. The hinged compartments were for passenger models all years, even
> ones with beds and screened windows. The sealing setup in the campers is a
> real POS, not planned for by VW, just a crappy retrofit done to achieve
> compliance with some RV/Housecar fire rating standard IMHO.
> Westfalias have the compliance stickers on them. I think we hammer this
> topic here every few years.
>
> Mark
>
> Dave Mcneely wrote:
>> David, thanks very  much for your very complete reply.  more below.
>>
>> ---- David Beierl<dbeierl@attglobal.net>  wrote:
>>
>>> VW in 1984 was using a sealed box with gasketed lid, venting to the
>>> outside for the main battery and a spring-latched door for the
>>> auxiliary (Konsistency?  Bah!  Let ze Americans wunder.);  by my '89
>>> both sides were the swinging doors, open at the front to all the
>>> passing breezes.
>>
>> My '91 VW Vanagon GL Campmobile has a gasketed lid that has four screws
>> to hold it in place over the battery box.  The box has a vent on the
>> forward side that appears to exit the box on the front but then turn
>> downward.  No swinging door, the only opening the only opening the
>> gasketed lid, and the vent in the front wall.
>>
>> Now, I too have packing to do, and will be on my way to Spokane,
>> Washington tomorrow morning.
>>
>> Sincerely, David McNeely
>>
>
>