JD VIP Buyers Club
JD on Facebook
JamestownTV
JD Points Program
Request A Free Catalog

Wood Screw Sizing


Wood Screw Specifications

Wood screw dimensions and their fractional equivalents, making fastener sizing a lot easier.

Wood Screws
Screw Number Max. Head Diameter Shank Diameter Root Diameter Threads
Per Inch
Basic Decimal Size Nearest
Fractional
Equivelant
Average
Decimal
Size
Nearest
Fractional
Equivelant
0 .119 .060 1/16 .040 3/64 32.00
1
.146 .073 5/64 .046 3/64 28.00
2 .172 .086 3/32 .054 1/16 26.00
3 .199 .099 7/64 .065 1/16 24.00
4 .225 .112 7/64 .075 5/64 22.00
5 .252 .125 1/8 .085 5/64 20.00
6 .279 .138 9/64 .094 3/32 18.00
7 .305 .151 5/32 .102 7/64 16.00
8 .332 .164 5/32 .112 7/64 15.00
9 .358 .177 11/64 .122 1/8

14.00

10 .385 .190 3/16 .130 1/8 13.00
11 .411 .203 13/64 .139 9/64 12.00
12 .438 .216 7/32 .148 9/64 11.00
14 .491 .242 1/4 .165 5/32 10.00
16 .544 .268 17/64 .184 3/16 9.00
18 .597 .294 19/64 .204 13/64 8.00
20 .650 .320 5/16 .233 7/32 8.00
24 .756 .372 3/8 .260 1/4 7.00

JD on Facebook Live Tech Support JD Customer Photo Gallery Free Catalog