These are stainless steel "Rail" pattern folder spacers designed by KnifeKits.com parts designer, Darrel Ralph. Created with a 2-56 threaded hole (screws not included), they make an excellent standoff addition to any custom folder design. Proudly made in the USA!
Diameter - .191-.192" (4.88-4.90mm)
Thread Size - 2-56 (screws not included)
Width - .194-.195" (4.94-4.95mm)