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Re: [OM] Mamiya Sekor 500 DTL

Subject: Re: [OM] Mamiya Sekor 500 DTL
From: Mike Lazzari <watershed@xxxxxxxxxxxxxxx>
Date: Tue, 16 Feb 2016 10:59:09 -0800
As someone who uses a lot of screws, I buy them by the 3-8k boxes, I feel somewhat qualified to comment. Here is my list of _common_ head styles listed from best to worst:

5*
-Robertson AKA square drive. A properly made Robertson is by far the best. Don't be fooled by the many cheap knock-offs.

4 1/2*
-hex head or Allen head. Right up there.

3 1/2*
-torx. A good design unfortunately many of the screws commonly available in hdwr stores in this pattern are junk.
-clutch

2 1/2*
-Reed & Prince

2*
-philips
-JIS

1 1/2*
-posidrive. unfortunately used extensively in euro cabinets etc. I give it my "what the f@^% were they thinking" award.

no *'s
-slotted
-combo drives, assorted styles. all the bad, none of the good.

not rated:
-all of the specialty patterns

Mike





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