10.5 x 6.7mm Flat Clutch BackPERRIN
10.5 x 6.7mm Flat Clutch Back is available in yellow gold plating and nickel plating. Clutches are most commonly used with scarf pins, lapel pins and tie tacks. Clutches have either a rubberized plug on the inside or are spring loaded to catch the pin. These clutch backs fit 0.45" (1.14mm).