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7 members (Phak1, GMCJammer51, D B Cooper, treegrower, 2-Ton, 55shaker, 1 invisible),
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Global Mod,
Mod | | | Forums66 Topics128,095 Posts1,056,072 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2009 Posts: 58 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2009 Posts: 58 | Guys, I need to remove the float assembly in my 1957 3100. The fasteners that hold it in the tank are not a torch, allen, phillips or straight. Looks like a small square hole?? Where can I find a bit like this? Any help would be appreciated. thanks  | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | You must be talking about a Robertson screw head? They usually have two sizes in drivers, a red handle and a green handle. This is a Canadian invention that lost out to the Philips type. | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Ole Skool Trucks, are they clutch head by any chance? | | | | | Joined: Jan 2009 Posts: 58 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2009 Posts: 58 | I am not sure what a clutch head is...sorry it actually looks like a carriage head but with a square hole.
ole skool | | | | | Joined: Jan 2009 Posts: 58 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2009 Posts: 58 | Thanks for the info. Where do you think I can pick up that tool? Home Depot or local Napa store? | | | | | Joined: Mar 2007 Posts: 863 Shop Shark | | Shop Shark Joined: Mar 2007 Posts: 863 | Clutch head screws look like mini bowties...
Robertson head screws look like Squares...
| | | | | Joined: Feb 2002 Posts: 12,029 Cruising in the Passing Lane | | Cruising in the Passing Lane Joined: Feb 2002 Posts: 12,029 | actually Nix, there's also black handle [#1] and yellow [#4]  and America has finally accepted them, ought to be able to find the drivers at most good tool suppliers now Bill | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | red58,
yes I know that, but I didn't want to complicate the story! | | | | | Joined: Jan 2009 Posts: 58 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2009 Posts: 58 | Guys, I really appreciate each of you taking the time to help an ole boy out. Now that I know what to ask for I hope to hit the local tool store later this week. Thanks for all the info....interesting reading about the origin of the Robertson Screw.
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