Threads and Threading - Sportpilot.info
Threads and Threading - Sportpilot.info
Threads and Threading - Sportpilot.info
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0.041667P<br />
;;;;;;;;;;<br />
;;;;;;;;;;<br />
1/2 Tolerance on Major Diameter<br />
of Screw<br />
0.125P ;;;;;;;;;;<br />
30°<br />
60°<br />
;;;;;;;;;;<br />
;;;;;;;;;;<br />
Maximum Major Dia. of Nut<br />
Minimum Major Dia. of Nut<br />
Maximum Major Dia. of Screw<br />
Minimum Major Dia. of Screw<br />
Basic Major Dia. of Screw <strong>and</strong> Nut<br />
Maximum Pitch Dia. of Nut<br />
Minimum Pitch Dia. of Nut<br />
Basic Pitch Dia. of Screw ond Nut<br />
Maximum Pitch Dia. of Screw<br />
Minimum Pitch Dia. of Screw<br />
1/2 PD Tolerance on Nut<br />
1/2 Allowance (Screw only)<br />
1/2 PD Tolerance on Screw<br />
;;;;;;;;;;<br />
;;;;;;;;;;<br />
External Thread<br />
(Screw)<br />
Internal Thread<br />
(Nut)<br />
0.25P<br />
;;;<br />
1/2 Tolerance on<br />
Minor Dia. of Nut<br />
UNR Maximum Minor<br />
Dia of Screw<br />
Minimum Minor<br />
Dia. of Screw<br />
UNR Contour<br />
(see text)<br />
Permissible<br />
Form of<br />
UN Thread<br />
From New Tool<br />
Minimum Minor<br />
Dia. of Nut<br />
Maximum Minor<br />
Dia. of Nut<br />
UN Nominal (Max.)<br />
Minor Dia. of Screw<br />
1/2 Allowance<br />
(Screw Only)<br />
0.125P<br />
Limits of Size Showing Tolerances, Allowances (Neutral Space), <strong>and</strong><br />
Crest Clearances for Unified Classes 1A, 2A, 1B, <strong>and</strong> 2B<br />
Machinery's H<strong>and</strong>book 27th Edition<br />
Basic Form<br />
0.041667P<br />
;;;;;;;;;;<br />
;;;;;;;;;;<br />
1/2 Tolerance on Major Diameter<br />
of Screw<br />
0.125P ;;;;;;;;;;<br />
30°<br />
60°<br />
;;;;;;;;;;<br />
;;;;;;;;;;<br />
Maximum Major Dia. of Nut<br />
Minimum Major Dia. of Nut<br />
Maximum Major Dia. of Screw<br />
Minimum Major Dia. of Screw<br />
Basic Major Dia. of Screw <strong>and</strong> Nut<br />
Maximum Pitch Dia. of Nut<br />
Minimum Pitch Dia. of Nut<br />
Basic Pitch Dia. of Screw <strong>and</strong> Nut<br />
Maximum Pitch Dia. of Screw<br />
Minimum Pitch Dia. of Screw<br />
1/2 PD Tolerance on Nut<br />
1/2 PD Tolerance on Screw<br />
;;;;;;;;;;<br />
;;;;;;;;;;<br />
External Thread<br />
(Screw)<br />
Copyright 2004, Industrial Press, Inc., New York, NY<br />
Internal Thread<br />
(Nut)<br />
1/2 PD Tolerance on<br />
Minor Dia. of Nut<br />
0.250P<br />
;;;<br />
UNR Maximum Minor<br />
Dia. of Screw<br />
Minimum Minor<br />
Dia. of Screw<br />
UNR Contour<br />
(see text)<br />
Permissible<br />
0.125P<br />
Form of<br />
UN Thread<br />
From New Tool<br />
Limits of Size Showing Tolerances <strong>and</strong> Crest Clearances for Unified<br />
Classes 3A <strong>and</strong> 3B <strong>and</strong> American National Classes 2 <strong>and</strong> 3<br />
Basic Form<br />
Minimum Minor<br />
Dia. of Nut<br />
Maximum Minor<br />
Dia. of Nut<br />
UN Nominal (Max.)<br />
Minor Dia. of Screw<br />
1774<br />
UNIFIED SCREW THREADS