The easiest thing to do is to take the old and new bolts to a hardware shop and they'll tell you if they're the same/sell you the right ones.
@yoav started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
The easiest thing to do is to take the old and new bolts to a hardware shop and they'll tell you if they're the same/sell you the right ones.