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Nominal Inside Outside Material MS45904 Number Number
Screw Diameter Diameter Thickness Steel of Ext of Int
Size Min. Max. Min. Max. Min. Max. Plated Teeth Teeth
4 0.115 0.123 0.460 0.475 0.016 0.021  -51   12 6
4 0.115 0.123 0.495 0.510 0.017 0.021 -52*    
4 0.115 0.123 0.580 0.610 0.017 0.021 -53*    
6 0.141 0.150 0.495 0.510 0.023 0.028  -54   12 6
6 0.141 0.150 0.580 0.610 0.023 0.028 -55*    
6 0.141 0.150 0.670 0.690 0.023 0.028 -56*    
8 0.168 0.176 0.580 0.610 0.028 0.034  -57   12 7
8 0.168 0.176 0.670 0.690 0.028 0.034  -58   12 7
8 0.168 0.176 0.740 0.760 0.028 0.034  -59   13 7
10 0.195 0.204 0.580 0.610 0.028 0.034  -60   12 6
10 0.195 0.204 0.670 0.690 0.032 0.040  -61   12 6
10 0.195 0.204 0.740 0.760 0.032 0.040  -62   13 6
10 0.195 0.204 0.880 0.900 0.032 0.040  -63   12 6
12 0.221 0.231 0.670 0.690 0.032 0.040 -64*    
12 0.221 0.231 0.725 0.760 0.032 0.040 -65* 12 7
12 0.221 0.231 0.880 0.900 0.032 0.040 -66* 12 7
12 0.221 0.231 0.965 0.985 0.037 0.045 -67*    
1/4 0.256 0.267 0.725 0.760 0.032 0.040  -68   12 8
1/4 0.256 0.267 0.880 0.900 0.032 0.040  -69   12 8
1/4 0.256 0.267 0.965 0.985 0.037 0.045  -70   12 8
1/4 0.256 0.267 1.045 1.070 0.037 0.045  -71   14 6
5/16 0.320 0.332 0.865 0.900 0.032 0.040  -72   12 9
5/16 0.320 0.332 0.965 0.985 0.037 0.045  -73   14 8
5/16 0.320 0.332 1.045 1.070 0.042 0.050  -74   14 8
5/16 0.320 0.332 1.130 1.155 0.042 0.050 -75* 14 8
3/8 0.384 0.398 0.965 0.985 0.037 0.045  -76   14 9
3/8 0.384 0.398 1.045 1.070 0.042 0.050  -77   14 9
3/8 0.384 0.398 1.130 1.155 0.042 0.050 -78    
3/8 0.384 0.398 1.220 1.260 0.042 0.050  -79   14 8
7/16 0.448 0.464 1.045 1.070 0.042 0.050 -80* 14 10
7/16 0.448 0.464 1.130 1.155 0.042 0.050 -81* 14 10
7/16 0.448 0.464 1.220 1.260 0.047 0.055 -82* 14 8
7/16 0.448 0.464 1.290 1.315 0.047 0.055 -83*    
1/2 0.512 0.530 1.220 1.260 0.047 0.055  -84   14 10
1/2 0.512 0.530 1.290 1.315 0.047 0.055 -85*    
1/2 0.512 0.530 1.380 1.410 0.052 0.060  -86   15 10
1/2 0.512 0.530 1.590 1.620 0.059 0.067 -87 15 8
9/16 0.576 0.596 1.290 1.315 0.047 0.055 -88*    
9/16 0.576 0.596 1.380 1.410 0.052 0.060 -89* 15 10
9/16 0.576 0.596 1.590 1.620 0.059 0.067 -90*    
9/16 0.576 0.596 1.797 1.830 0.059 0.067 -91*    
5/8 0.640 0.663 1.380 1.410 0.052 0.060 -92 15 10
5/8 0.640 0.663 1.590 1.620 0.059 0.067  -93   15 10
5/8 0.640 0.663 1.797 1.830 0.059 0.067 -94*    
5/8 0.640 0.663 1.935 1.975 0.059 0.067 -95*    
* Inactive for new design

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WCL Company specializes in reliable low-cost, engineered high-performance fasteners, fittings, plastic components, washers, nuts, and a wide array of fastener components. WCL has 50 years of experience with all types of standard and engineered fasteners, and provides a comprehensive line of fastener products for sale from some of the world's leading manufacturers.
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