Need spec for robotic claw screws

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bryonconnolly
Posts: 2
Joined: Wed May 11, 2011 5:20 pm

Need spec for robotic claw screws

Post by bryonconnolly » Wed May 11, 2011 5:25 pm

http://www.sparkfun.com/products/10332

I'm new to hardware in general, can someone tell me the specs on the screws used in this? Width and threads. I have no frame of reference for this, and don't know the terminology. Just need the info needed to order new ones.

Roughly
1/8" diameter "shaft"
3/4" long
no idea how to describe the threading besides "small"

thisisjaye
Posts: 16
Joined: Thu May 12, 2011 4:19 pm

Re: Need spec for robotic claw screws

Post by thisisjaye » Thu May 12, 2011 5:01 pm

when you get into sizing of bolts, anything under 1/4 of an in is given a number. a number "6" bolt/screw is closest to 1/8th in. and the most common size thread for a 6 is "32" which means 32 threads per inch. It will be written out like this "6-32". The length will be noted on the package and there are many head styles to choose from. If you would like to browse through all your options go here - http://www.mcmaster.com/#screws/=ca1396 this will walk you through all the sizing options and has a very easy layout to fallow. to figure it out the less technically way, you could always bring what your trying to figure out to Lowes or home depot and use trial and error.

best of luck,
-Jaye

Chagrin
Posts: 64
Joined: Wed Mar 02, 2011 5:06 am

Re: Need spec for robotic claw screws

Post by Chagrin » Thu May 12, 2011 9:18 pm

The screws that hold the faceplates onto switches/outlets are 6-32 (at least in the US). If the screw matches, well you're done. If the screws in your claw are slightly thicker in diameter but the threads match, then look for 8-32 or, larger yet, 10-32.

At a hardware store these will be referred to as "machine screws".

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