Wood Screw: Sizes, Dimensions & Specifications
30th Dec 2021
Wood Screw: Slotted and Phillips Flat Head Dimensions (ASME B18.6.1) |
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Size |
Phillips Driver Size |
Head Diameter (A) |
Head Height (H) |
Width of Slot (J) |
Depth of Slot (T) |
Dimension of Recess |
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Max |
Min |
Ref |
Max |
Min |
Max |
Min |
Dia. Max (M) |
Dia. Min (M) |
Depth Max (G) |
Depth Min (G) |
Width Min (N) |
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#2 |
1 |
0.172 |
0.147 |
0.051 |
0.031 |
0.023 |
0.023 |
0.015 |
0.102 |
0.089 |
0.063 |
0.047 |
0.017 |
#3 |
1 |
0.199 |
0.141 |
0.059 |
0.035 |
0.027 |
0.027 |
0.017 |
0.107 |
0.094 |
0.068 |
0.052 |
0.018 |
#4 |
1 |
0.225 |
0.195 |
0.067 |
0.039 |
0.031 |
0.030 |
0.020 |
0.128 |
0.115 |
0.089 |
0.073 |
0.018 |
#5 |
2 |
0.252 |
0.220 |
0.075 |
0.043 |
0.035 |
0.034 |
0.022 |
0.154 |
0.141 |
0.086 |
0.063 |
0.027 |
#6 |
2 |
0.279 |
0.244 |
0.083 |
0.048 |
0.039 |
0.038 |
0.024 |
0.174 |
0.161 |
0.106 |
0.083 |
0.029 |
#7 |
2 |
0.305 |
0.268 |
0.091 |
0.048 |
0.039 |
0.041 |
0.027 |
0.189 |
0.176 |
0.121 |
0.098 |
0.030 |
#8 |
2 |
0.332 |
0.292 |
0.100 |
0.054 |
0.045 |
0.045 |
0.029 |
0.204 |
0.191 |
0.136 |
0.113 |
0.032 |
#9 |
2 |
0.358 |
0.316 |
0.108 |
0.054 |
0.045 |
0.049 |
0.032 |
0.214 |
0.201 |
0.146 |
0.123 |
0.033 |
#10 |
3 |
0.385 |
0.340 |
0.116 |
0.060 |
0.050 |
0.053 |
0.034 |
0.258 |
0.245 |
0.146 |
0.123 |
0.034 |
#11 |
3 |
0.438 |
0.389 |
0.132 |
0.067 |
0.056 |
0.060 |
0.039 |
0.283 |
0.270 |
0.171 |
0.148 |
0.036 |
#12 |
3 |
0.507 |
0.452 |
0.153 |
0.075 |
0.064 |
0.070 |
0.046 |
0.283 |
0.270 |
0.171 |
0.148 |
0.036 |
#13 |
3 |
0.544 |
0.485 |
0.164 |
0.075 |
0.064 |
0.075 |
0.049 |
0.303 |
0.290 |
0.191 |
0.168 |
0.039 |
*Click on the size to search products
Wood Screw: Round Head Dimensions (ASME B18.6.1) |
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Size |
Phillips Driver Size |
Head Diameter (A) |
Head Height (H) |
Width of Slot (J) |
Depth of Slot (T) |
Dimension of Recess |
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Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
Dia. Max (M) |
Dia. Min (M) |
Depth Max (G) |
Depth Min (G) |
Width Min (N) |
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#2 |
1 |
0.162 |
0.146 |
0.069 |
0.059 |
0.031 |
0.023 |
0.048 |
0.037 |
0.114 |
0.101 |
0.064 |
0.042 |
0.018 |
#4 |
2 |
0.211 |
0.193 |
0.086 |
0.075 |
0.039 |
0.031 |
0.058 |
0.044 |
0.130 |
0.117 |
0.083 |
0.063 |
0.019 |
#5 |
2 |
0.236 |
0.217 |
0.095 |
0.083 |
0.043 |
0.035 |
0.063 |
0.047 |
0.154 |
0.141 |
0.074 |
0.046 |
0.027 |
#6 |
2 |
0.260 |
0.240 |
0.103 |
0.091 |
0.048 |
0.039 |
0.068 |
0.051 |
0.162 |
0.149 |
0.084 |
0.056 |
0.027 |
#7 |
2 |
0.285 |
0.264 |
0.111 |
0.099 |
0.048 |
0.039 |
0.072 |
0.055 |
0.170 |
0.157 |
0.092 |
0.066 |
0.028 |
#8 |
2 |
0.309 |
0.287 |
0.120 |
0.107 |
0.054 |
0.045 |
0.077 |
0.058 |
0.178 |
0.165 |
0.101 |
0.075 |
0.030 |
#9 |
2 |
0.334 |
0.311 |
0.128 |
0.115 |
0.054 |
0.045 |
0.082 |
0.062 |
0.186 |
0.173 |
0.110 |
0.084 |
0.030 |
#10 |
2 |
0.359 |
0.334 |
0.137 |
0.123 |
0.060 |
0.050 |
0.087 |
0.065 |
0.195 |
0.182 |
0.119 |
0.093 |
0.031 |
#12 |
3 |
0.408 |
0.382 |
0.153 |
0.139 |
0.067 |
0.056 |
0.096 |
0.073 |
0.249 |
0.236 |
0.125 |
0.099 |
0.032 |
#14 |
3 |
0.457 |
0.429 |
0.170 |
0.155 |
0.075 |
0.064 |
0.106 |
0.080 |
0.265 |
0.252 |
0.142 |
0.116 |
0.034 |
*Click on the size to search products
Wood Screw: Oval Head Dimensions (ASME B18.6.1) |
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Size
|
Phillips Driver Size |
Head Diameter (A) |
Head Height (H) |
Width of Slot (J) |
Depth of Slot (T) |
Dimension of Recess |
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Max |
Min |
Side Height (Ref.) |
Total Height Max |
Total Height Min |
Max |
Min |
Max |
Min |
Dia. Max (M) |
Dia. Min (M) |
Depth Max (G) |
Depth Min (G) |
Width Min (N) |
||
#4 |
1 |
0.225 |
0.195 |
0.067 |
0.104 |
0.084 |
0.039 |
0.031 |
0.059 |
0.049 |
0.136 |
0.123 |
0.094 |
0.077 |
0.019 |
#5 |
2 |
0.252 |
0.220 |
0.075 |
0.116 |
0.095 |
0.043 |
0.035 |
0.067 |
0.055 |
0.158 |
0.145 |
0.085 |
0.061 |
0.028 |
#6 |
2 |
0.279 |
0.244 |
0.083 |
0.128 |
0.105 |
0.048 |
0.039 |
0.074 |
0.060 |
0.178 |
0.165 |
0.105 |
0.080 |
0.030 |
#8 |
2 |
0.332 |
0.292 |
0.100 |
0.152 |
0.126 |
0.054 |
0.045 |
0.088 |
0.072 |
0.205 |
0.192 |
0.131 |
0.106 |
0.033 |
#9 |
2 |
0.358 |
0.316 |
0.108 |
0.164 |
0.137 |
0.054 |
0.045 |
0.095 |
0.078 |
0.216 |
0.203 |
0.144 |
0.119 |
0.034 |
#10 |
3 |
0.385 |
0.340 |
0.116 |
0.176 |
0.148 |
0.060 |
0.050 |
0.103 |
0.084 |
0.261 |
0.248 |
0.142 |
0.118 |
0.037 |
#12 |
3 |
0.438 |
0.389 |
0.132 |
0.200 |
0.169 |
0.067 |
0.056 |
0.117 |
0.096 |
0.283 |
0.270 |
0.165 |
0.140 |
0.040 |
*Click on the size to search products
Wood Screw: Thread & Body Diameter - Cut & Rolled Thread Types |
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Nominal Size* or Basic Screw Diameter Click on the size to search products |
Threads Per Inch |
Major Thread Diameter (D) |
Body Diameter - (E) Cut Thread |
Body Diameter - (E) Rolled Thread |
Thread Depth (F) |
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Max |
Min |
Max |
Min |
Max |
Min |
Min |
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#2 |
0.086 |
26 |
0.090 |
0.079 |
0.090 |
0.079 |
0.075 |
0.064 |
0.010 |
#3 |
0.099 |
24 |
0.103 |
0.092 |
0.103 |
0.092 |
0.086 |
0.075 |
0.014 |
#4 |
0.112 |
22 |
0.116 |
0.105 |
0.116 |
0.105 |
0.095 |
0.084 |
0.016 |
#5 |
0.125 |
20 |
0.129 |
0.118 |
0.129 |
0.118 |
0.107 |
0.096 |
0.018 |
#6 |
0.138 |
18 |
0.142 |
0.131 |
0.142 |
0.131 |
0.118 |
0.107 |
0.020 |
#7 |
0.151 |
16 |
0.155 |
0.144 |
0.155 |
0.144 |
0.127 |
0.116 |
0.022 |
#8 |
0.164 |
15 |
0.168 |
0.157 |
0.168 |
0.157 |
0.136 |
0.125 |
0.023 |
#9 |
0.177 |
14 |
0.181 |
0.170 |
0.181 |
0.170 |
0.147 |
0.136 |
0.026 |
#10 |
0.190 |
13 |
0.194 |
0.183 |
0.194 |
0.183 |
0.157 |
0.146 |
0.030 |
#12 |
0.216 |
11 |
0.220 |
0.209 |
0.220 |
0.209 |
0.176 |
0.165 |
0.031 |
#14 |
0.242 |
10 |
0 .246 |
0.235 |
0.246 |
0.235 |
0.201 |
0.190 |
0.035 |
#16 |
0.268 |
9 |
0 .272 |
0.261 |
0.272 |
0.261 |
0.214 |
0.203 |
0.038 |
Hex Cap Screws : Nominal Length |
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Nominal Screw Length |
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Up to 5/8" |
Over 5/8" - 1-1/2" |
Over 1-1/2" - 2-3/4" |
Longer than 2-3/4" |
|
+0, -0.03 |
+0, -0.05 |
+0, -0.06 |
+0, -0.09 |
Wood Screws: Performance & Mechanical Specs |
|
Description |
A thread forming screw having a gimlet point, and a sharp crested, coarse pitch thread. They are either produced with cut thread screws, which have a tapered shank, or rolled thread screws, which have a constant shank diameter. |
Applications |
Will produce a mating thread when assembled into wood or other resilient materials. |
Material |
Carbon Steel, Stainless Steel, Alloy Steel, Brass |
Length of Thread |
Cut thread screws: Approx. 2/3 of the nominal screw length Rolled thread screws: At least 4X the basic screw diameter or 2/3 the nominal screw length (whichever is greater). Screws of nominal lengths too short to accommodate the minimal thread length will have threads extending as close to the underside of the head as practicable. |