What d'ya call those figure 8 shaped bolt heads?

[Norris W.]

The one I'm talkin' about is what holds the metering block on a side inlet Holley or in this case the inner door handle bolts on some straight axle Corvettes. I stopped a tool truck this week and asked the guy and he didn't know what I was talkin' about, so I drew him a picture. He said his granddad called 'em buggerheads, but he didn't have any idea where to find a tip that'd fit 'em. Buggerhead search on the internet didn't help.

[Tom H.]

Re: What d'ya call those figure 8 shaped bolt heads?

Clutch head

[Robert S.]

Re: What d'ya call those figure 8 shaped bolt heads?

Sounds like you're talking about clutch head bolts and screws. Clutch head screwdrivers are available at Sears.

[Norris W.]

Re: What d'ya call those figure 8 shaped bolt heads?

Thanks guys.

[Gary B.]

Re: What d'ya call those figure 8 shaped bolt heads?

You can also make your own using bolts and grinding down the sides. The bolt will fit a socket set.

[Gary C.]

Re: What d'ya call those figure 8 shaped bolt heads?

Snap On sells socket clutch head drivers

Gary
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[Joe L.]

Re: What d'ya call those figure 8 shaped bolt heads?

Thanks guys.

Norris-----


Some of the clutch head screws, especially some of those used on Holley carbs, use an uncommon-size clutch head driver. I don't know if Sears has those. Snap-On might.

[Larry M.]

Re: What d'ya call those figure 8 shaped bolt heads?

Norris-----


Some of the clutch head screws, especially some of those used on Holley carbs, use an uncommon-size clutch head driver. I don't know if Sears has those. Snap-On might.

TRU-VALUE Hardware stores sell 2 or 3 different size clutch-head screwdrivers. Very good quality screwdrivers and relatively low price (compared to Snap-On)

They fit the Holley carbs........that's why I purchased them.

Larry

[Chuck S.]

Re: What d'ya call those figure 8 shaped bolt heads?

Is there such a thing as a "male" clutch head??? Trico vacuum windshield wiper motors of the mid-fifties used special screws which I`ve heard were called male" clutch heads. I`ve been unable to find a source for these special Trico screws.

[Gary C.]

Re: What d'ya call those figure 8 shaped bolt heads?

Chuck,

There's a clutch head winged type "security screw" that has raised edges. Used on locks, etc. that are not supposed to be easily removed.

Gary
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