Prime-Line 9183768 Socket Set Screws, 1/4 in-20 X 1 in, Black Oxide Coated Steel (25 Pack)
$14.99
by PRIME-LINE
Size: 1/4 inch-20 X 1 inch Headless screw that sits flush or below the surface once installed Internal socket drive requires Allen wrench (hex key) to install Installs into an internally threaded hole to hold an object into place Often used in machinery to secure gears to shafts