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Grade 5 Pin Hardware

Grade 5 Pin Hardware

Grade 5 Pin Hardware

(OP)
Greetings,

  I have an application in which the shank or unthreaded portion of a Gr5 3/8" bolt is used as a pin for a member to rotate about. Well the design has changed so that the bolt has shortened (~3/4") and  most bolts of this shorter length are fully threaded. Like I said it is a pin application and sees mostly shear so maybe the clamping force a bolt provides isn't needed at all. Although the application does require the strength that a Gr5 bolt offers.
I'm thinking of a 3/8" clevis type pin with the strength of Gr5 Hardware and some sort of external retaining ring.
But then again I might not be able to find the length I need off-the-shelf. So perhaps obtaining a high strength rod and turning it in-house might be the solution unless machinability and tooling issues occur.

  Any suggustions appreciated

Failure is a prerequisite of successful design

RE: Grade 5 Pin Hardware

I would suggest LaSalle StressProof steel,which is a cold drawn 1144 free machining grade.

RE: Grade 5 Pin Hardware

Can you use a shoulder or stripper bolt?

RE: Grade 5 Pin Hardware

(OP)
Swall, Thanks for pointing me in the direction. About the Lasalle A 311 steel, is this a standard steel common to most metal vendors? In the mfg business so my next question... is it economical?

Unclesyd,
   I search all of my hardware from Mcmaster.com well just because Im unseasoned. I found a metric equivalent of class 12.9. Aware of any other extensive hardware dealers?

I've also seen situations where the threaded portion of a screw is used as the pinned surface. For fear of galling that would be my last choice even though it's steel on steel. Any thoughts

Failure is a prerequisite of successful design

RE: Grade 5 Pin Hardware

I would have to say the ASTM A311 is not a standard steel, but it is readily available. You can get it from McMaster-Carr, onlinemetals.com and many steel service centers.

RE: Grade 5 Pin Hardware

(OP)
Thankyou all for the suggestions.

Failure is a prerequisite of successful design

RE: Grade 5 Pin Hardware

How about a bushing??  No rubber just a short tube outside the bolt.......

RE: Grade 5 Pin Hardware

Is this a one of a kind part? or are you setting up for a production run?

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