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




Smith Fastener Company • 3613 East Florence Avenue, Bell, California, 90201
Phone: ( 323 ) 587-0382 • FAX: ( 323 ) 587-8712 • E-mail: [email protected]
Copyright © 2009 by Smith Fastener Company

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