Extended-length replacement black "acorn head" leg bolts for Williams & Bally pinball machines. Also compatible with Data East, Sega & Stern pinball machines.
These bolts are 1/4" (3 threads) longer than the standard leg bolts to accommodate the extra length that is sometimes needed for leg protectors, drink caddies, cabinet protectors, leg light ups, etc. They also have slightly less pronounced corners on their acorn head than Data East, Sega & Stern leg bolts have, so they are technically for Williams & Bally machines, but they can be used for all machines because this is simply a small stylistic difference.
Williams/Bally reference #4322-01125-40B & #4322-01125-44B.
Data East/Sega/Stern reference #231-5001-01B.
Jersey Jack Pinball reference #90-008038-40-0.