Course Bolts

Tbone

Well Known Member

• Jun 12, 2016

• #1

I'm looking for some course threaded bolts that will be installed for accessories on my Lycoming. Is there a supplier that has quality items and can order in singles?

 

az_gila

Well Known Member

• Jun 12, 2016

• #2

Sometimes these bolts might do the job...

https://www.aircraftspruce.com/catalog/hapages/enginebolts15.php

 

K

Kyle Boatright

Well Known Member

• Jun 12, 2016

• #3

Your local hardware store or big box store is a likely source.

 

BillL

Well Known Member

• Jun 12, 2016

• #4

I think you mean coarse, but Lycoming bolts are listed at Spruce. What size and function do you need? I was looking at come case perimeter bolts and the even sizes are reasonably priced.

 

Mike S

Senior Curmudgeon

• Jun 12, 2016

• #5

GAHCO should be able to help you out.

http://www.gen-aircraft-hardware.com/

 

Tbone

Well Known Member

• Jun 12, 2016

• #6

I think I'm turning spell check off! Thanks. What grade should I order or look for? Grade 5?

 

6

6 Gun

Well Known Member

• Jun 12, 2016

• #7

Bolts

Lowes grade 8

 

Sam Buchanan

been here awhile

• Jun 12, 2016

• #8

Tbone said:

I think I'm turning spell check off! Thanks. What grade should I order or look for? Grade 5?

Click to expand...

Grade 5 is what I've heard over the past many years. Probably a bit less brittle than grade 8.

 

Jerry Cochran

Well Known Member

• Jun 12, 2016

• #9

U might go....

...here.

https://www.fastenal.com/

Stores all over and huge selection

Jerry

 

az_gila

Well Known Member

• Jun 12, 2016

• #10

Jerry Cochran said:

...here.

https://www.fastenal.com/

Stores all over and huge selection

Jerry

Click to expand...

Interesting that none of the Fastenal bolts seem to be cadmium plated like aircraft/Lycoming bolts.

"Yellow Zinc" just seems to be a less effective but similar looking finish...