Identify these bolts! Curious

[1968rt]

Top bolt is a BB crank to flex bolt. second row crank and/or flex bolts, third row??

 

[RemCharger]

Top only pic is a hard sell, but bottom maybe seatbelt

 

[1968rt]

The bolts are all the same length, short maybe about 3/4"

 

[Cranky]

Looks like flex plate bolts to me....

 

[MWbirdLOVER70]

Maybe converter to flex bolts? Better pic on side maybe

 

[Runcharger]

Can't see the lengths. Top look like flexplate to crank bolts, middle flexplate to crank bolts, bottom, flexplate to convertor bolts.

 

[1968rt]

Heres the side view. Seems the bolt on right has the top radiused, maybe machined??

 

[Bighouse]

I’m also going with seat belt for the one on the right. I have 2 belt bolts on my workbench I’ll look at tomorrow

 

[R413]

The smooth tops are flexplate to converter on 426 Hemi.

the other two are flexplate to crankshaft.

 

[Geoff 2]

The bolt with the rounded head looks to have a larger thread diameter by about 1/16".

 

[Mopar Hunter]

Seat belt bolts have letters and numbers on them.

 

[Runcharger]

Seat belt bolts have to be longer to thread through the carpet. Convertor bolts can't be too long or they'll bottom out, Crank bolts can't be too long either or they'll thread out the front of the crank flange. R413 got the Hemi part right on the convertor bolts, they are thicker than wedge convertor bolts.

 

[Geoff 2]

Pretty sure the Hemi bolts were 7/16", same as A & B engines. Eight used on the Hemi, six on the others.

 

[Geoff 2]

P4120464, 8 bolt crank bolt package in the Perf Parts catalog, all have flat heads.

 

[Krooser]

P4120464, 8 bolt crank bolt package in the Perf Parts catalog, all have flat heads.

May be a different style from 60 years ago

 

[1STMP]

The third row (with no markings)
looks as though they've been
machined down to fit a certain
application.

 

[PsyOps]

It may be an optical illusion but the bolt on the right appears to have a thicker threaded portion. IIRC, there was/is/are 2 different flex plate to converter bolt sizes. Maybe the one on the right is the bigger size bolt?

 

[Geoff 2]

See post #10....

 

[PsyOps]

See post #10....

Oh sure, hide the info in all that technical mumbo jumbo...I'm going back to Evelyn Wood and get my money back for that speed reading course...

 

[MWbirdLOVER70]

Seems these bolts get more gabbing than a Hemi