This item is highlighted as #99 on the product illustration in the middle.

This is a 7/16"-14 X 7-1/2" NC HHMB bolt for John Blue’s L-4400 series pumps. It’s part # 90681 and goes with model #s L-4400, L-4405, and L-4409 pumps.

Please note, 2 bolts are required for each pump.