Weld Nut
 
Wels Nut Details :
DIAMETER SIZE
SERIES
A
B
C
D
E
G
WING
SPREAD
WING
HEIGHT
WING
THICKNESS
BETWEEN
WINGS
BOSS
DIAMETER
BOSS
HEIGHT
max
min
max
min
max
min
 max
min
max
min
max
min
3
0.099
H
0.720
0.590
0.410
0.280
0.110
0.070
0.210
0.170
0.330
0.290
0.140
0.010
4
0.112
H
0.720
0.590
0.410
0.280
0.110
0.070
0.210
0.170
0.330
0.290
0.140
0.010
5
0.125
*L
0.720
0.590
0.410
0.280
0.110
0.070
0.210
0.170
0.330
0.290
0.140
0.010
5
0.125
H
0.910
0.780
0.470
0.340
0.140
0.100
0.270
0.220
0.430
0.390
0.180
0.140
6
0.138
L
0.720
0.590
0.410
0.280
0.110
0.070
0.210
0.170
0.330
0.290
0.140
0.010
6
0.138
*H
0.910
0.780
0.470
0.340
0.140
0.100
0.270
0.220
0.430
0.390
0.180
0.140
8
0.164
*L
0.910
0.780
0.470
0.340
0.140
0.100
0.270
0.220
0.430
0.390
0.180
0.140
8
0.164
H
1.100
0.970
0.570
0.430
0.180
0.140
0.330
0.260
0.500
0.450
0.220
0.170
10
0.190
*L
0.910
0.780
0.470
0.340
0.140
0.100
0.270
0.220
0.430
0.390
0.180
0.140
10
0.190
H
1.100
0.970
0.570
0.430
0.180
0.140
0.330
0.260
0.500
0.450
0.220
0.170
12
0.216
*L
1.100
0.970
0.570
0.430
0.180
0.140
0.330
0.260
0.500
0.450
0.220
0.170
12
0.216
H
1.250
1.120
0.660
0.530
0.210
0.170
0.390
0.320
0.580
0.510
0.250
0.200
1/4
0.250
*L
1.100
0.970
0.570
0.430
0.180
0.140
0.330
0.260
0.500
0.450
0.220
0.170
1/4
0.250
R
1.250
1.120
0.660
0.530
0.210
0.170
0.390
0.320
0.580
0.510
0.250
0.200
1/4
0.250
H
1.440
1.310
0.790
0.650
0.240
0.200
0.480
0.420
0.700
0.640
0.300
0.260
5/16
0.313
*L
1.250
1.120
0.660
0.530
0.210
0.170
0.390
0.320
0.580
0.510
0.250
0.200
5/16
0.313
R
1.440
1.310
0.790
0.650
0.240
0.200
0.480
0.420
0.700
0.640
0.300
0.260
5/16
0.313
H
1.940
1.810
1.000
0.870
0.330
0.260
0.650
0.540
0.930
0.860
0.390
0.350
3/8
0.375
*L
1.440
1.310
0.790
0.650
0.240
0.200
0.480
0.420
0.700
0.640
0.300
0.260
3/8
0.375
R
1.940
1.810
1.000
0.870
0.330
0.260
0.650
0.540
0.930
0.860
0.390
0.350
7/16
0.438
*L
1.940
1.810
1.000
0.870
0.330
0.260
0.650
0.540
0.930
0.860
0.390
0.350
7/16
0.438
H
2.760
2.620
1.440
1.310
0.400
0.340
0.900
0.800
1.190
1.130
0.550
0.510
1/2
0.500
*L
1.940
1.810
1.000
0.870
0.330
0.260
0.650
0.540
0.930
0.860
0.390
0.350
1/2
0.500
H
2.760
2.620
1.440
1.310
0.400
0.340
0.900
0.800
1.190
1.130
0.550
0.510
* Designates preferred series/sizes fo each diameter.  Series designations are:
L = Light Series H = Heavy Series R = Regular Series
Forged wing nuts are available in a variety of wing shapes and boss dimensions. The above dimensions are for Type A, also known as Type 1 Style A-1 of Federal Specification FF-N-845. Stamped wing nuts are also available by request. For more information, ask your Fast Fastners sales representative.
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Last Update : 14/08/2012