Aluminum machining for fasteners - ALUCON ENGINEERING

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Aluminum machining for fasteners

REFERENCE CORNER
Alucon Engineering / Reference Corner / Aluminum Machining

Alucon Engineering - Aluminum machining for fasteners

Screw Size Hole Aluminum thickness
No Dia. Max & Min. .015 .031 .046 .062 .078 .093 .109 .125 .140 .156 .171 .18 & up
2 0.086
0.082
 A  Dia. .062 .063 .067 .070 .073 .073 - - - - - -
Drill # 1/16 52 51 50 49 49 - - - - - -
B Dia. 0.080
C Dia & Drill # 0.089 No 43
4 0.112
0.107
A Dia. .086 .086 .086 .089 .089 .093 .106 .106 .106 .106 .106 .106
Drill # 44 44 44 43 43 3/32 36 36 36 36 36 36
B Dia. 0.106
C Dia & Drill # 0.116 No 32
6 0.138
0.132
A Dia. - .104 .104 .106 .110 .111 .110 .110 .120 .120 .120 .120
Drill # - 37 37 36 35 34 32 31 31 31 31 31
B Dia. 0.118
C Dia & Drill # 0.140 No 28
8 0.164
0.158
A Dia. - .116 .128 .136 .140 .147 .147 .149 .149 .152 .152 .152
Drill # - 32 30 29 28 26 20 25 25 24 24 24
B Dia. 0.148
C Dia & Drill # 0.169 No 18
10 0.190
0.184
A Dia. - .144 .144 .144 .147 .147 .147 .154 .154 .159 .166 .166
Drill # - 27 27 27 26 26 26 23 23 21 19 19
B Dia. 0.166
C Dia & Drill # 0.196 No 9
12 0.216
0.209
A Dia. - .161 .161 .166 .173 .180 .180 .182 .189 .189 .196 .196
Drill # - 20 20 19 17 15 15 14 12 12 9 9
B Dia. 0.196
C Dia & Drill # 0.221 No 2
14 0.229
0.223
A Dia. - - - .199 .201 .204 .204 .204 .209 .209 .209 .209
Drill # - - - 8 7 6 6 6 4 4 4 4
B Dia. 0.209
C Dia & Drill # 0.234 No 15/64
1/4 0.250
0.242
A Dia. - - - - - .201 .203 .204 .205 .209 .213 .218
Drill # - - - - - 7 13/64 6 5 4 3 7/32
B Dia. 0.218
C Dia & Drill # 0.257 No 1/4
         
Hydrogen embrittlement occurs when using tempered fasteners with aluminum, because of dissimilar
materials there is a chemical reaction called "galvanic action", this when in the presence of moisture
can cause failure under loading. Using series 300 stainless steel, virtually eliminates this problem.
 
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