>Wongck at 03:39, 19 February 2012

2012-02-19T03:39:56Z

← Older revision		Revision as of 23:39, 18 February 2012
Line 29:		Line 29:
	<br/>		<br/>
	<br/>		<br/>
			<br/>
			<br/>
			Back to [[Fixes]]

	<br/>		<br/>
	[[Category: How To]]		[[Category: How To]]

>Wongck at 15:36, 11 October 2011

2011-10-11T15:36:17Z

← Older revision		Revision as of 11:36, 11 October 2011
Line 26:		Line 26:

	Copied from posting of 1024MAK		Copied from posting of 1024MAK

			<br/>
			<br/>
			<br/>
			[[Category: How To]]

>Wongck: Created page with "There are many different thread types used throughout the world. However, most screws used in the developed countries in "the west" in the last 25 years conform to "standards" th..."

2011-08-31T14:31:24Z

Created page with "There are many different thread types used throughout the world. However, most screws used in the developed countries in "the west" in the last 25 years conform to "standards" th..."

New page

There are many different thread types used throughout the world. However, most screws used in the developed countries in "the west" in the last 25 years conform to "standards" that are either international standards (the metric sizes), or former British or American "standards". Metric sizes should be readily available. The self tapping screws are available in the UK, but I am not sure about elsewhere.

Anyway here are the details of some of the screw used on one of my machines.

'''Atari 520 STFM'''

'''Case screws'''

Threaded section 9.6mm/0.38in, total length 12mm/0.47in, thread outside dia 2.9mm/0.11in.
The nearest type that I have found are "self tapping screws", size "No.4" length 0.5in (so it says on the packet, but when measured is approx 0.54in), but these are slightly too long so either cut or file them down, or use a M3 size washer under the head of the screw.

'''PSU mounting screws'''

These hold the PCB to the bottom plastic case, and also the ones that hold the PSU to the bottom plastic case through the PCB):-
Threaded section 7.7mm/0.3in, total length 9.8mm/0.38in, thread outside dia 3mm/0.11in.
Again use "self tapping screws", size "No.4". If you can find ones that are the right length, or cut down some of the 0.5in ones.

'''Metalwork screws'''

Machine screws that hold the metalwork covers (such as the metalwork over the PSU) to the main PCB metalwork:-
Metric type M3, threaded section 4.7mm, total length 7mm, thread outside dia 2.9mm.

There are some other odd sizes, but I did not need to replace these so I did not measure them.

Copied from posting of 1024MAK

Screws used in an STFM - Revision history

>Wongck at 03:39, 19 February 2012

>Wongck at 15:36, 11 October 2011

>Wongck: Created page with "There are many different thread types used throughout the world. However, most screws used in the developed countries in "the west" in the last 25 years conform to "standards" th..."