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ROUND
HEAD

FLAT / NAIL
HEAD

TRUSS
HEAD

UNIVERSAL
HEAD

PAN
HEAD

COUNTERSUNK
HEAD
BODY
DIAMETER

A
HEAD
DIA.

B
HEAD
HEIGHT

C
HEAD
DIA.

B
HEAD
HEIGHT

C
HEAD
DIA.

B
HEAD
HEIGHT

C
HEAD
DIA.

B
HEAD
HEIGHT

C
HEAD
DIA.

B
HEAD
HEIGHT

C
HEAD
DIA.

B
HEAD
HEIGHT

C
C.S.
DEGREE

D
SUGGESTED
CLINCH
ALLOWANCE

F

NOMINAL

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.

MIN./MAX.*

REF.

1/16

.059/.064 .102/.122 .042/.052 .120/.140 .017/.027 .115/.135 .027/.037 .098/.118 .030/.040 .110/.118 .027 90° .062

3/32

.090/.096 .162/.182 .065/.077 .180/.200 .026/.038 .206/.226 .026/.038 .177/.197 .039/.051 .153/.173 .048/.060 .163/.176 .040 90° .094

1/8

.121/.127 .215/.235 .088/.100 .240/.260 .036/.048 .277/.297 .036/.048 .240/.260 .053/.065 .205 / .225 .066/.078 .217/.235 .053 90° .125

5/32

.152/.158 .268/.290 .110/.124 .301/.323 .045/.059 .348/.368 .045/.059 .301/.323 .065/.079 .257/.279 .082/.096 .272/.293 .066 90° .156

3/16

.182/.191 .322/.348 .133/.147 .361/.387 .055/.069 .422/.442 .055/.069 .361/.387 .078/.092 .308/.334 .100/.114 .326/.351 .079 90° .187

1/4

.244/.253 .430/.460 .180/.196 .485/.515 .075/.091 .560/.590 .075/.091 .485/.515 .104/.120 .414/.444 .135/.151 .437/.469 .106 90° .250

5/16

.304/.316 .538/.572 .225/.243 .607/.641 .095/.113 .702/.732 .095/.113 .607/.641 .129/.147 .518/.552 .169/.187 .547/.588 .133 90° .312

3/8

.365/.380 .646/.684 .271/.291 .731/.769 .115/.135 .848/.878 .115/.135 .731/.769 .156/.176 .625/.663 .205 / .225 .656/.704 .159 90° .375

7/16

.428/.443 .754/.798 .317/.339 .852/.896 .135/.157 .990/1.020 .135/.157 .728/.772 .239/.261 .765/.823 .186 90° .438

1/2

.478/.520 .844/.938 .375/.406 .844/.938 .250/.281 .872/.936 .260 78° .500

5/8

.600/.655 1.063/1.157 .469/.500 1.063/1.157 .313/.344 1.112/1.194 .339 78° .625

3/4

.725/.780 1.281/1.390 .562/.593 1.281/1.390 .375/.406 1.322/1.421 .400 78° .750

7/8

.850/.905 1.500/1.609 .656/.687 1.500/1.609 .438/.469 1.532/1.647 .460 78° .875

1

.975/1.030 1.719/1.828 .750/.781 1.719/1.828 .500/.531 1.745/1.873 .520 78° 1.000

STANDARD MATERIALS
STEEL • ALUMINUM • BRASS • COPPER • STAINLESS STEEL • MONEL

Many finishes and colors available. We also have many non-standard sizes in stock, please call us for availability!
*NOTE: Countersunk head dimensions may be theoretical to sharp edge of head.