Course 12-point MS Quality bolts with safety wire heads

[Rick Iverson]

Gents;

Really crummy on research. Looking for a vendor for course 12 point mil-spec quality bolts with safety wire heads, say 0.25” - 0.75” lengths. Any help?

[lowside67]

Not sure how important the 12-point head is, but Aircraft Spruce sells socket heads that are pre-drilled in both fine and coarse thread. I use these in 3/16" for rivnut mounting points.

https://www.aircraftspruce.com/catal...lickkey=971954

-Mark

[Rick Iverson]

Close enough

[Rick Kirchner]

let me guess - caliper to upright bolts?

[Rick Iverson]

let me guess - caliper to upright bolts?

Yep. Strong enough?

[Rick Kirchner]

Yep. Strong enough?

Those bolts are so freakin big that chineseium will work. I used stainless, driled heads from Allan's Fasteners

[Garey Guzman]

I look for MS20074. Skybolt lists them:
http://skybolt.com/wp-content/upload...-12-7-2017.pdf

I just checked and Aircraft Spruce also lists them as MS20074. They call them "Engine bolts"