KitchenAid Stand Mixer Attachment Thumb Screw Color Black This is a NEW OEM Whirlpool (Kitchen Aid) Part. KitchenAid Stand Mixer Attachment Thumb Screw (Color Black). Thumb screw with black knob end. For use with stand mixer attachments and to hold the end cap on the front of the mixer. Cross Reference Information: Part Number 9709194 replaces 4162142, 1262050, 240374, 4169829, AH991938, EA991938, AP3952642, PS991938. All "in stock" items will be shipped the same business day if ordered before 4:30 pm Pacific Time Monday-Wednesday and before 3:30 pm Pacific Time Thursday-Saturday. Orders placed on non-business days (Sunday and major holidays) will be shipped on the following business day.