I'm looking for a bolt with a screw head

**BozInOz** · 15th June 2010, 06:08 PM

I have a couple of vices that are bolted to wood using bolts like the one in the picture. The problem is... either one of the vices didn't come with bolts, or I've lost two of them. Either way I can't find a replacement and need two of them.

The thread is a standard 5/16" bolt. But the top is a 45 degree screw head. Strange. The vice really needs this shaped head to match the bracket. I've find some bugle batten 14g screws that would probably work, but I would prefer to tap the wood and use a bolt than use a screw so it can be removed etc.

Any one know a supplier? Or what this type of bolt is called?

**malb** · 15th June 2010, 06:43 PM

Looks like a bog standard 5/16th machine screw to me, should be a standard hardware item, unless of course it has been hit by metrication. I suspect that you should be able to get a few in Zenith pack at Big B for about $3.50.

Intended to have a nut run down them or screw into a tapped hole in metal, not too sure about the holding ability when run into tapped wood. An alternative would be to recess a T nut from above and plug, or alternatively drill/tap into hardwood, toughen the thread with CA glue then retap to clean the thread, then run the screw in.

**Woodwould** · 15th June 2010, 06:45 PM

What you have there is a Flat Head Machine Screw. An alternative might be a Flat head Socket Screw, available from any good fastener supplier.

**BozInOz** · 15th June 2010, 07:42 PM

I looked at the big b for the big z, but I don't think they make them.
Bolts & Threaded Rod

**BozInOz** · 15th June 2010, 07:55 PM

Countersunk Slot - Imperial

Found a local fastener shop... will check them out...

acmegridley · 16th June 2010, 11:00 AM

That's a countersunk head machine screw,the length is measured from the top of the screw rather then under the head,as in hexagon headed bolts,set screws etc

**blackhole** · 16th June 2010, 11:22 AM

What length are you after?

**blackhole** · 16th June 2010, 11:28 AM

I just checked and the ones I have are metric.

If you are still stuck then let me know because there is a friendly bolt guy up here where I go to get unusual nuts and bolts.

**NCArcher** · 16th June 2010, 11:57 AM

Glade Manufacturing & Sales Pty Ltd
Bolts & Nuts - Tomago, NSW
(02) 4964 8077

have a good range in stock if you don't do any good at the other place. I've purchased large countersunk machine screws from them before

**cultana** · 18th June 2010, 11:16 AM

You could try: bolt.com.au

https://www.bolt.com.au/index.php?cPath=1010_1994_2008

**malb** · 23rd June 2010, 12:40 PM

Originally Posted by BozInOz

I looked at the big b for the big z, but I don't think they make them.
Bolts & Threaded Rod

From the Zenith Cat promoted on their site page 23

Bolts and Nuts Countersunk and round Heads

(protected PDF so cannot copy and paste relevant bit but list sizes and has drawing of zinc plate cs screw and nut).
Also has same in SS one or two pages below.

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