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4-40 x 1/4" long phillips pan head machine screw
Reference:
4004-01005-04
237-6169-00
Basic diameters and threads of Standard SAE numeric system small machine screws are shown below.
The diameters of machine screws are indicated with the number of threads per inch count.
Here is a list of common sizes in inches:
2-56: 0.0860" or 43/500" diameter; 56 threads per inch
4-40: 0.1120" or 14/125" diameter; 40 threads per inch
5-40: 0.1250" or 1/8" diameter; 40 threads per inch
6-32: 0.1380" or 69/500" diameter; 32 threads per inch
8-32: 0.1640" or 41/250" diameter; 32 threads per inch
10-24: 0.1900" or 19/100" diameter; 24 threads per inch
10-32: 0.1900" or 19/100" diameter; 32 threads per inch
12-24: 0.2160" or 27/125" diameter; 24 threads per inch
