Contains 25 of #81160- 10mm X 1 inch flat head round shoulder bolts with offset shanks. Case hardened & yellow dichromate plated. Plus 25 of #305-77-100 nuts with nylon self-locking inserts. 10mm X 9/16 inch with plain finish. Priced each, sold in package quantity of 25. FITS FAHR DISC MOWER: SM2.17, SM2.21, SM2.24, SM3.24, SM3.28. FITS GEHL DISC MOWER: 140, 160, 2310, 2330, 2350. FITS VICON DISC MOWER: CM165, CM167, CM216, CM240, CM247.