30
Standard Hardware
STANDARD
FASTENER
IDENTIFICATION
CHART
Hardware sizes given in the
illustrations 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 heads for standard screw sizes.
Example: a 1/4 screw has 7/16 head and thus requires a 7/16
wrench. To measure length, use the scale below.
WASHER AND NUT IDENTIFICATION
Place the washer or nut on the above scale to
determine the inside diameter. The actual inside
diameter can vary 1/16 inch. Use the scale for
comparison.
3/4” Head
screw with
1/2” S.D.
5/8” Head
screw with
7/16” S.D.
9/16” Head
screw with
3/8” S.D.
1/2” Head
screw with
5/16” S.D.
7/16” Head
screw with
1/4” S.D.
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