Machine Screw 4-40 x 3/8 inch pl-hwh

Machine screw with 4-40 thread and 3/8 inch long unslotted 3/16 inch taptite hex washer head.

Reference:

237-5934-00

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" in diameter; 56 threads per inch4-40: 0.1120" or 14/125" in diameter; 40 threads per inch5-40: 0.1250" or 1/8" in diameter; 40 threads per inch6-32: 0.1380" or 69/500" in diameter; 32 threads per inch8-32: 0.1640" or 41/250" in diameter; 32 threads per inch10-32: 0.1900" or 19/100" in diameter; 32 threads per inch10-24: 0.1900" or 19/100" in diameter; 24 threads per inch12-24: 0.2160" or 27/125" in diameter; 24 threads per inch