Scubapro chrome plated brass regulators...

[rsingler]

@Angelo Farina , any idea of the thread pitch on those metric M3's?

If you happen to know, that'll save me the trouble of going out and measuring...

For lurkers, metric screws use the distance in mm from thread peak to the next peak.
Imperial threads, as you know, are in TPI, or threads per inch.

 

[Angelo Farina]

@Angelo Farina , any idea of the thread pitch on those metric M3's?
View attachment 580365
If you happen to know, that'll save me the trouble of going out and measuring...

For lurkers, metric screws use the distance in mm from thread peak to the next peak.
Imperial threads, as you know, are in TPI, or threads per inch.

I did already post: M3 with pitch 0.5 mm, which is the standard pitch for M3. So it is a very common screw here.
The problem is the small cylindrical head, it should be just 4mm diameter, whilst normal M3 screws have a head of 5.5mm.

 

[Umuntu]

I did already post: M3 with pitch 0.5 mm, which is the standard pitch for M3. So it is a very common screw here.
The problem is the small cylindrical head, it should be just 4mm diameter, whilst normal M3 screws have a head of 5.5mm.

We need DIN 920 Brass screws in M3 x 0.5mm. DIN 920 have a reduced head size.

10mm or 12mm length ?

 

[Open Ocean Diver]

My thread pitch is .5, head 4mm... Am I Italian or American?

 

[lowwall]

My thread pitch is .5, head 4mm... Am I Italian or American?

We need more information. How finely ground is your coffee?

 

[Open Ocean Diver]

We need more information. How finely ground is your coffee?

Almost like powder...

 

[rsingler]

If I measuring the length correctly, the shank length beneath the head is about 10.5 mm. In this photo, the M3 x 0.5 mm is on the bottom, and the Impartial 4 x 40 is on top.

Interestingly, all my Imperial are hex or Phillips head, while the metric is slotted.

 

[lowwall]

Almost like powder...

Merhaba!

 

[saxman242]

while the metric is slotted.

It's not because it's metric, but because it's a small diameter fillister head. No wall thickness in the head for a reasonable sized hex

 

[Open Ocean Diver]

If I measuring the length correctly, the shank length beneath the head is about 10.5 mm. In this photo, the M3 x 0.5 mm is on the bottom, and the Impartial 4 x 40 is on top.
View attachment 580378
Interestingly, all my Imperial are hex or Phillips head, while the metric is slotted.
View attachment 580379

Looks like I have the M3... so made in Italy?