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PAN HEAD SELF-TAPPING SCREW
Head Dimensions
Pan Head Self-Tapping and Drilling Screws Combination Drive Pan Head Self Tapping Screws Square Drive Pan Head Self-Tapping Screws Torx Drive Pan Head Self Tapping Screws



Head Dimensions for Slotted or Phillips Drive Pan Head Self Drilling and Tapping Screws - ANSI B18.6.4
Nominal
Size		 A H H1 J T M G N Phillips
Driver
Size
Head
Diameter		 Height of Head Slot Width Slot Depth Dimensions of Recess
Slotted Recessed Diameter Depth Width
Max Min Max Min Max Min Max Min Max Min Max Min Max Min
2 .167 .155 .053 .045 .062 .053 .031 .023 .031 .022 .104 .091 .059 .017 1
3 .193 .180 .060 .051 .071 .062 .035 .027 .036 .026 .112 .099 .068 .019 1
4 .219 .205 .068 .058 .080 .070 .039 .031 .040 .030 .122 .109 .078 .019 1
5 .245 .231 .075 .065 .089 .079 .043 .035 .045 .034 .158 .145 .083 .028 2
6 .270 .256 .082 .072 .097 .087 .048 .039 .050 .037 .166 .153 .091 .028 2
8 .322 .306 .096 .085 .115 .105 .054 .045 .058 .045 .182 .169 .108 .030 2
10 .373 .357 .110 .099 .133 .122 .060 .050 .068 .053 .199 .186 .124 .031 2
12 .425 .407 .125 .1125 .151 .139 .067 .056 .077 .061 .259 .246 .141 .034 3
1/4 .492 .473 .144 .130 .175 .162 .075 .064 .087 .070 .281 .268 .161 .036 3
5/16 .615 .594 .178 .162 .218 .203 .084 .072 .106 .085 .350 .337 .193 .059 4
3/8 .740 .716 .212 .195 .261 .244 .094 .081 .124 .100 .389 .376 .233 .065 4



Phillips and Slotted Combination Drive Pan Head Self-Tapping Screws
Nominal
Screw
Size		 G H J A M T N Recess
Penetration		 Driver
Size
Head Dimensions Slot Dimensions Recess Dimensions
Head
Diameter		 Head
Height		 Width Depth Diameter Depth Width
Max Min Max Min Max Min Max Min Max Min Max Min Min Max Min
4 .219 .205 .080 .070 .039 .031 .040 .030 .122 .109 .078 .060 .019 .071 .053 1
6 .270 .256 .097 .087 .048 .039 .050 .037 .166 .153 .091 .066 .028 .080 .055 2
7 .296 .281 .106 .096 .048 .039 .054 .041 .176 .163 .100 .074 .029 .089 .064 2
8 .322 .306 .115 .105 .054 .045 .058 .045 .182 .169 .108 .082 .030 .097 .071 2
10 .373 .357 .133 .122 .060 .050 .068 .053 .199 .186 .124 .100 .031 .113 .089 2
12 .425 .407 .151 .139 .067 .056 .077 .061 .259 .246 .141 .115 .034 .124 .098 3
1/4 .492 .473 .175 .162 .075 .064 .087 .070 .281 .268 .161 .135 .036 .144 .118 3



Square Drive Pan Head Self Tapping Screws - IFI
Nominal Size or
Basic Screw
Diameter		 A H M T Driver
Size		 P
Head Diameter Head Height Recess Square Recess Depth Penetrating
Gauging Depth
Max Min Max Min Max Min Max Min Max Min
4 .1120 .219 .205 .086 .075 .071 .0696 .073 .063 0 .038 .032
6 .1380 .270 .256 .103 .091 .091 .090 .113 .105 1 .065 .057
8 .1640 .322 .306 .120 .107 .1126 .111 .140 .119 2 .075 .065
10 .1900 .373 .357 .137 .123 .1126 .111 .140 .119 2 .075 .065
12 .2160 .425 .407 .153 .139 .133 .1315 .165 .155 3 .095 .085
1/4 .2500 .492 .473 .175 .160 .133 .1315 .165 .155 3 .095 .085
5/16 .3125 .615 .594 .216 .198 .191 .1895 .201 .191 4 .100 .090



Torx® Drive Pan Head Self Tapping Screws - Camcar
Screw
Size		 D H R G   Driver Size
Head Dimensions Recess Dimensions
Head Diameter Head Height Ref Gauge
Penetration
Min		 Max
Penetration
(Fallaway)
Max Min Max Min
4 .219 .205 .080 .070 .111 .035 .022 T10
6 .270 .256 .097 .087 .132 .045 .026 T15
8 .322 .306 .115 .105 .155 .055 .031 T20
10 .373 .357 .133 .122 .178 .070 .036 T25
12 .425 .407 .151 .139 .200 .070 .040 T27
1/4 .492 .473 .175 .162 .221 .085 .044 T30
5/16 .615 .594 .218 .203 .266 .105 .047 T40

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Self Tapping Screws
Smith Fastener Company, A California Corporation - 3613 East Florence Avenue, Bell, California, 90201 - Phone: ( 323 ) 587-0382 - FAX: ( 323 ) 587-8712 - E-mail: sales@smithfast.com - Copyright © 2000 by Smith Fastener Company - Last updated: May 19th, 2006 - http://www.smithfast.com/pantapping.htm