Staples
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In a size like 23/6,
- 23 is the thickness - in terms of (american?) wire gauge
- 6mm leg length
Side-to-side width is not directly specified, and is implied from the type.
Even so, it is moderately correlated with the gauge, e.g.
- 24/ and 26/ (the most common) are 12.8mm
- 23/ is 13 mm
- 53 series is 11.35 mm
- 13 series is 10.65 mm
- No. 8 a.k.a. 6/4 is 7.1mm
- No. 10 is 9.4mm
Classroom and office staples
Common staples:
- EU:
- mostly 24/6 (No. 3) or the longer 24/8
- the mini 10/5 (No. 10)
- 6/4 (No. 8)
- US, mini: No. 10 (a.k.a. 10/5)
- US, home use: 6/6, 24/6, 24/8, 13/6, 13/8, 26/6 (No.56),
- US, heavier duty: 23/8, 23/12, 23/15, 23/20, 23/24, 13/10, and 13/14
- and a whole bunch of imperial sizes because why not
Leg length
- 6mm tends to be good for 20 sheets
- 8mm for 50 or so sheets
Manual staple guns
a.k.a. hand tackers, often use
- 53 series (11.3mm wide), so e.g. 53/6, 53/8, 53/10, 53/14, etc.
- 13 series (10.6mm wide), 13/6, 13/8
- (sometimes type 140 (10.1mm wide)
(all 22 gauge (0.60mm) either)
See also
http://en.wikipedia.org/wiki/Staple_(fastener) http://de.wikipedia.org/wiki/Heftklammer http://nl.wikipedia.org/wiki/Nietje http://en.wikipedia.org/wiki/Staple_gun http://en.wikipedia.org/wiki/Hammer_tacker