This is a A-26A1-B Battery Bolts & Nuts, Square Head, 5/16" PN: 26A1-BMain Description As Following : A-26A1-B Battery Bolts & Nuts, Square Head, 5/16" P.N: 26A1-B Sold in multiples of 50 bolts/50 nuts only.Dim A (1): 5/16" Square Head Crossed From: 6014-050 , Found in Section & Models : Ignition & Electrical Parts > Battery Cables and Terminals, (Miscellaneous) (UNDEFINED): SEVERAL, Allis-Chalmers TRACTOR: SEVERAL, Case-IH TRACTOR: SEVERAL, Ford / New Holland TRACTOR: SEVERAL, John Deere TRACTOR: SEVERAL, Massey Ferguson TRACTOR: SEVERAL, White/ Oliver/ Mpl Moline TRACTOR: SEVERAL Associated Items : A-26A1-C Also A-AC-S-LPEQUIP, A-MNL18344, A-MM-C-ALL1920, A-WH-S-AC, A-WH-S-ALTSTR And : Sold in multiples of 50 bolts/50 nuts only. Dim A (1): 5/16" Square Head