Hex Standoff - Male-Female #4-40 x 3/16 (OD) x 1 (Length) Steel, Zinc Trivalent Plating (QUANTITY: 1000)

Compare to: RAF: 4513-440-S-12
An opening with a partial internal thread at one end an externally threaded post at the opposite end
It is used to hold two components at a given distance from each other.
Standoffs are usually chosen over spacers when longer sizes are required
Hex standoffs can be installed with a nutsetter or other wrenching device