ok I have been to every parts and tool store in town and no one here knows anything about this. I even had the guy at pepboys tell me "they make no such tool" I responded "well how the hell did they get it in there stupid" Help will be greatly appreciated thanks guys
That's a clutch head bolt or screw They often come in drill bit assortments. My set is Craftsman, includes clutch head, square head, torx, allen, phillips and slotted in various sizes
Clutch head screw. Comes in quite a few sizes. See a lot on early Chevys. Snap On ?? I still have my Dads from when he ran a shop in the 50s
thousands of them held my old trailer house together. I modified an old craftsman screwdriver on a grinding wheel.
my local napa carries them. even ace hardware had a set a while back. i buy all i find just in case they stop making them. i probably have 10 or more sets by now. plus in my line i tend to break a few now and then.
Jim Carter's classic chevy truck parts sells the tool in a set of 3. http://www.oldchevytrucks.biz/34_46/full.asp?page=17
thanks for the help guys wasnt sure what it was call and now it should be easy ans F&G you called it its a 50 chevy
try chevys of the 40s, Brothers truck, or the car and truck shop of orange. They all carry a 4 piece screwdriver style set.
Or if the John Deere dealership is close to you, try them. Clutch heads were used on a lot of the early "letter" tractors. My 1952 Model B uses them to hold all the sheet metal on.
Hell man, grind one to fit! Stuff a bit of valve lapping compound in ther with your freshly ground bit and un-sex that thing!
What was the purpose? I always wondered what the logic was behind such a unique fastener. Its not like what they were used on was for security reasons.
Their purpose is to make a simple job almost impossible until you buy 4 more tools. But really, you asked a good question I hope someone can answer.
Be sure to go to Snap On, MAC, Craftsman so you get a GOOD QUALITY tool, the off shore built shit just doesnt last or even work in some cases. Need good quaility American Steel.
It is all about the money!!! if you make something unique that the original company is the only one the produces, they can than charge top price for the product. For example, I work for a local fastenal, we sell bearings for a cost almost 75% cheaper than the original manufacturer.
add a bit of beeswax and heat before you attempt to remove them and using a quality clutchhead bit (buy 3 their cheap!) in your impact you should be successful.
I've always figured that clutch head fasteners, like the newer torx head stuff, were designed to speed up production assembly. A worker can stick a screw or bolt onto the end of the tool and it will stay in place, at least at certain angles, while he still has one hand free to align the part he's attaching or to hold a wrench on the mating fastener. Though I don't see why an allen head setup wouldn't work just as well. I think torx head fasteners do provide a better grip and allow higher torque to be applied.
The official name for the "square head" is Robertson. They are made in 4 main sizes - yellow, green, red, black - small to large. Mostly used in Canadian stuff. Canadian model A's were full of them. They are tapered to be able to have the screw/bolt stay on the driver at any angle.
Heck even the Harbor Freight $9.99 bit set comes with three sizes of Clutch Head bits. I'm still on my first case of that set - I've broken a couple, but the phillips in particular I've broken or stripped other brands just as easily.
I've read they were to more evenly apply the forces as they clamp the metal, and they don't strip out like a straight slot or phillips. Holley Carbs also use a very small version. I've got an old Snap-on version with the Octo-Grip handle for the big ones on my '56 and '57 Chevy, and my '61 Suburban. I bought the two smaller sizes from Snap-on a few years ago for rebuilding carbs. You CAN use a straight-blade screwdriver to remove them, but it chews up the fastener. Buy the right tool, and there's zero reason not to keep them on the car. -Brad
My 37 chevy p/u had a bunch in the interior and I think I used vise grips to remove them,this was before I had the sense to buy the correct tool and when I put in a more correct looking interior I will neeed to find new clutch head screws.
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