3/8 Inch Drive x 7 mm Deep 6-Point Socket Tekton they have a slight wedge

they have a slight wedge shape that grips both sides of the slot

Grade 8 Hex Flange Screws and Flange Lock Nuts Zinc Yellow

Part Number: EZ-303-008

shallow drawer

3/8 Inch Drive x 7 mm Deep 6-Point Socket Tekton they have a slight wedgeDeep 6 point socket opening provides an ideal, exact fit for hex shaped fastener heads Socket geometry is designed to apply force to flat sides of fasteners and not the corners, preventing round off Deep length sockets reach into wells and accommodate the excess threads of longer shafts Extra large die stamped size markings are easy to read and cant wear off Polished, chrome plated finish easily wipes clean and is highly resistant to corrosion Four