: These extra digits identify a specific city block, apartment group, or high-volume mail receiver to speed up delivery. J-B Weld Solutions
If you are looking for adhesive solutions (often associated with "JB"), they offer several specialized products that might fit your project: Jb 481zip
If "481zip" refers to a ZIP code starting with (common in Southeast Michigan, including Ann Arbor and Dearborn), you can find the exact 4-digit extension using these official tools: : These extra digits identify a specific city
: For exterior vehicle trim or granite countertops, there are specific kits like Part# 50139 Go to product viewer dialog for this item. (Black) for filling chips. Local Assistance (Area 481XX) including Ann Arbor and Dearborn)