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HEX CAPSCREW
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CARRIAGE BOLT
PLAIN WASHER
LOCK WASHER
NUT
STANDARD
FASTENER
IDENTIFICATION
CHART
Hardware sizes are given
throughout this manual.
If a washer or nut is identified
as "washer, 1/2" or "nut, 1/2",
this
means
the
'inside
diameter is 1/2 inch.
If a screw is identified as
"screw, 1/2 x 2", this means
the shaft diameter is 1/2 inch
and the shaft of the screw is
2 inches long. If a screw is
identified as "screw, 1/2-16 x
2", the number "16" means
that
the
screw
has
16
threads per inch.
SAMPLE:
SCREW IDENTIFICATION
HEX CAPSCREW IDENTIFICATION
Shown below are actual size hex heads for standard screw
sizes. Example: a 1/4" screw has a 7/16 head and thus requires
a 7/16 wrench. To measure length, use the scale below.
3/4" Head
5/8" Head
9/16" Head
1/2" Head 7/16" Head
screw with
screw with
screw with
screw with screw with
1/2" S.D.
7/16" S.D.
3/8" S.D.
5/16" S.D.
1/4" S.D.
S.D. = Shaft Diameter
WASHER AND NUT IDENTIFICATION
Place the washer or nut on the above scale to determine the in¬
side diameter. The actual inside diameter can vary 1/16 inch.
Use the scale for comparison.
Shaft
Diameter
Shaft
/
^—Screw
Diameter
—«'
Length
SAMPLE:
NUT IDENTIFICATION
Inside
17
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