{"nhtsa_id":10007981,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-07-19","date":"2004-02-01","document_id":"04001","mfr_campaign":null,"replaces":null,"component":"WHEELS:LUGS/NUTS/BOLTS/STUDS","mfr_system":null,"summary":"HEAVY-DUTY 1/2 INCH-20 ZINC COATED DISC-LOCK NUT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10007981","components":[{"id":"wheels","name":"Wheels","parent":null},{"id":"lug-nut","name":"Wheel nuts and studs","parent":"wheels"}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN1","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}