Fellow nutters, I need your help ID'ing a screw...

[The Kurgan]

It's small: 7mm long
I assume it's metric.
It requires a 2mm Allen key
The head is approx. 5mm wide.
It has a fine thread pitch.

I need 3 of them, but I don't know where to look

Your help would be greatly appreciated.

 

[yomomma]

Which Steel Town?

 

[The Kurgan]

Hamilton

 

[Light Infantry]

I wouldn’t have any. But you can try McMaster Carr, or Spae naur (sp?)

 

[bertn]

What does the calipers say in mm when measuring the threaded part.

Looks like m3 to me.

are you in a rush to get them?
if not: https://www.amazon.ca/Grade10-9-Ten...countersunk&qid=1608693690&sr=8-27&th=1&psc=1
cost about 7 bucks delivered to your door for 100 pcs
you can pick length in 2mm increments.

 

[450yukon]

I have these if there the right thread/pitch. No problem throwing them in a Xmas card to you. These are 6-40 thread

 

[gaff]

bolts plus hamilton

 

[action jackson]

I suggest taking the screw to your local Rona or similar Hardware store and checking the Hardware section-they usually have a selection of male /female thread blocks to match your screw/nut with..

 

[tharkhold]

I suggest taking the screw to your local Rona or similar Hardware store and checking the Hardware section-they usually have a selection of male /female thread blocks to match your screw/nut with..

came here to say this as well.. fastest and surest way to check what it is.

 

[marshall]

I was looking for a couple for the base on a switzers auction red dot sight mount. Have 2 that look like that , about a 6 size, flat head. will measure tomorrow what is the pitch?
They look like rib mount screws on a Hi Standard Victor, but don't think they are long enough for that. small hex wrench

 

[The Kurgan]

My calipers gave up their ghost recently. Time for a trip to Rona for new calipers and a measurement. You guys were most helpful. I will let you know what I find out.

 

[Donny Fenn1]

Looks similar to the screws used to hold cleats on mountain bike shoes for Shimano pedals, try your local bike shop?

 

[guntech]

My calipers gave up their ghost recently. Time for a trip to Rona for new calipers and a measurement. You guys were most helpful. I will let you know what I find out.

What is it that requires these screws? That may help in identifying the actual size.

 

[Ex3dy]

well it is a fhscs, looks like m2 or m3x0.5

 

[bertn]

if these were regular m3 (m3 x 0.5) then your outside diameter (second picture) should be about 3 mm.

i doubt tsc or rona would have anything metric smaller than m4 but it is worth a try.


pretty sure this is an m3


Isn't NC 4-40 also in this ballpark?

 

[wolf19534]

Fastenal can determine correct size and thread pitch. They will either have the correct size on hand or can order them for you.

 

[Komodo]

Another option is take it to Brafasco. there is one in Hamilton

 

[tigrr]

I'm sure if he said what it held together, some one in the community would know what they were.

 

[The Kurgan]

Hi all; they secure a metal plate that houses the firing pin assembly on a European break action shotgun.

I wanted to thank everybody for their help and comments. This forum can be a great place!

After measuring several times, I believe the screw I need is:

M3x0.5x7mm flat head (countersunk).
After calling around several places, and alot of Internet research, I found a place that carries them in both 6mm and 8mm lengths here in Hamilton (R.E Glover Ltd.). 7mm is rare and basically unobtainable. I will see if 6mm works or I will cut down the 8mm screws with my dremel. 8mm may also be fine.

I will post back the results.

 

[yomomma]

Good. You may have to buy a box or you may get lucky and the guy behind the counter might just throw you one.