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Stage 8 fasteners

Rut

Obi Wan
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Has anyone used Stage 8 fasteners? It's a hex bolt with an Allen head center to help speed screwing it in or out.
Rut
 

tomshobby

Yoda
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Hi Rut,
Are you thinking socket head screws or maybe button head cap screws?
If so, Fastenal has them. I have used both of these often working in machine shops building custom machines. They give a clean appearance and work well where there is limited clearance for a wrench or socket.

shs.jpg bhcs.jpg

Example is on this tool I designed built and patented.
003.jpg
 

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Rut

Rut

Obi Wan
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Tom,
these are hex head bolts with an Allen head incorporated inside the hex head. There are certain applications like the heater, MC box, heater valve, etc. that I thought might benefit from using these.
Rut
 

dklawson

Yoda
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I hadn't heard of these until your post. They sound interesting. It looks like they have found common use where locking fasteners with indicators is of interest . I found lots of pictures showing them used on exhaust flanges and headers.

20093_Header-Bolt-Assembly.jpg
 

nomad

Yoda
Offline
Hi Rut,
Are you thinking socket head screws or maybe button head cap screws?
If so, Fastenal has them. I have used both of these often working in machine shops building custom machines. They give a clean appearance and work well where there is limited clearance for a wrench or socket.

View attachment 36418 View attachment 36419

Example is on this tool I designed built and patented.
View attachment 36422

That look's like a pretty slick miter saw, Tom. Not easy to come up with something that is patent-able now day's.

Kurt.
 

anarchy99

Jedi Warrior
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I've used the stage 8 bolts before... They work good for header bolts, just don't forget to loosen the inner locking bolt before loosening the outer bolt... If it's an aluminum head, you'll have a bad day, ask me how I know. Tore the threads all to ****
 
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