Wire Gage (AWG) | Nominal Wire Diameter (Inch) | Finished Hole Diameter Range (Inch) |
---|---|---|
36 | .005 | .016 - .030 |
35 | .0056 | .016 - .030 |
34 | .006 | .016 - .030 |
33 | .007 | .016 - .030 |
32 | .008 | .016 - .030 |
31 | .009 | .016 - .030 |
30 | .010 | .017 - .031 |
29 | .011 | .018 - .032 |
28 | .013 | .020 - .034 |
27 | .014 | .021 - .035 |
26 | .016 | .023 - .037 |
25 | .018 | .025 - .039 |
24 | .020 | .027 - .041 |
23 | .023 | .030 - .044 |
22 | .025 | .032 - .046 |
21 | .028 | .035 - .049 |
20 | .032 | .039 - .053 |
19 | .036 | .043 - .057 |
18 | .040 | .047 - .061 |
17 | .045 | .052 - .066 |
16 | .050 | .057 - .072 |
15 | .057 | .064 - .078 |
14 | .064 | .071 - .085 |
13 | .072 | .078 - .092 |
12 | .081 | .088 - .102 |
11 | .090 | .097 - .111 |
10 | .102 | .109 - .123 |
9 | .114 | .121 - .135 |
8 | .128 | .135 - .149 |
7 | .144 | .151 - .165 |
6 | .162 | .169 - .183 |
5 | .182 | .189 - .203 |
4 | .204 | .211 - .225 |
3 | .229 | .236 - .250 |
2 | .258 | .265 - .279 |
1 | .289 | .296 - .310 |
0 | .325 | .332 - .346 |
0-80 Hardware | ||
---|---|---|
Flat Head Diameter | .119 | |
Pan Head Diameter | .116 | |
Socket Head Diameter | .098 | |
External Lock Washer | N/A | N/A |
Internal Lock Washer | N/A | N/A |
Split Lock Washer | .119 OD | .062 ID |
Flat Washer | .188 OD | .073 ID |
Nut Clearance | .180 | |
Clearance Hole | .064 (#52 Drill) | |
Tap Hole | .046 (3/64 Drill) | |
2-56 Hardware | ||
---|---|---|
Flat Head Diameter | .172 | |
Pan Head Diameter | .167 | |
Socket Head Diameter | .140 | |
External Lock Washer | N/A | N/A |
Internal Lock Washer | .200 OD | .089 ID |
Split Lock Washer | .172 OD | .088 ID |
Flat Washer | .250 OD | .089 ID |
Nut Clearance | .217 | |
Clearance Hole | .089 (#43 Drill) | |
Tap Hole | .070 (#50 Drill) | |
4-40 Hardware | ||
---|---|---|
Flat Head Diameter | .225 | |
Pan Head Diameter | .219 | |
Socket Head Diameter | .185 | |
External Lock Washer | .260 OD | .115 ID |
Internal Lock Washer | .270 OD | .115 ID |
Split Lock Washer | .209 OD | .115 ID |
Flat Washer | .220 OD | .120 ID |
Nut Clearance | .289 | |
Clearance Hole | .116 (#32 Drill) | |
Tap Hole | .089 (#43 Drill) | |
6-32 Hardware | ||
---|---|---|
Flat Head Diameter | .279 | |
Pan Head Diameter | .270 | |
Socket Head Diameter | .266 | |
External Lock Washer | .320 OD | .141 ID |
Internal Lock Washer | .295 OD | .141 ID |
Split Lock Washer | .250 OD | .141 ID |
Flat Washer | .390 OD | .151 ID |
Nut Clearance | .361 | |
Clearance Hole | .144 (#27 Drill) | |
Tap Hole | .106 (#36 Drill) | |
8-32 Hardware | ||
---|---|---|
Flat Head Diameter | .332 | |
Pan Head Diameter | .332 | |
Socket Head Diameter | .270 | |
External Lock Washer | .381 OD | .168 ID |
Internal Lock Washer | .340 OD | .168 ID |
Split Lock Washer | .293 OD | .168 ID |
Flat Washer | .390 OD | .183 ID |
Nut Clearance | .397 | |
Clearance Hole | .170 (#18 Drill) | |
Tap Hole | .136 (#29 Drill) | |
10-32 Hardware | ||
---|---|---|
Flat Head Diameter | .385 | |
Pan Head Diameter | .373 | |
Socket Head Diameter | .313 | |
External Lock Washer | .410 OD | .195 ID |
Internal Lock Washer | .381 OD | .195 ID |
Split Lock Washer | .334 OD | .194 ID |
Flat Washer | .577 OD | .245 ID |
Nut Clearance | .433 | |
Clearance Hole | .196 (#9 Drill) | |
Tap Hole | .159 (#21 Drill) | |
1/4-28 Hardware | ||
---|---|---|
Flat Head Diameter | .507 | |
Pan Head Diameter | .492 | |
Socket Head Diameter | .375 | |
External Lock Washer | .510 OD | .256 ID |
Internal Lock Washer | .478 OD | .256 ID |
Split Lock Washer | .489 OD | .255 ID |
Flat Washer | .646 OD | .276 ID |
Nut Clearance | .508 | |
Clearance Hole | .257 (#F Drill) | |
Tap Hole | .213 (#3 Drill) | |