Aftermarket Replacement 10 Pack Shearbolt & Nut Kit Fits Ford/New Holland Hay Baler Models: 1280, 1281, 1282, 1290, 166, 178, 2000, 268, 269, 270, 271, 272, 273, 275, 280, 281, 282, 285, 290, 310, 65, 67, 68, 78, 99, Super 67, Super 68, Super 69 Kit Includes: (10) Bolts: 5/16"-18 x 2" hex head, grade 5, plain finish. .312" shank (10) Nuts: 5/16"-18, steel, hex locknut, zinc plated Replaces Part Numbers: 578393, 2619-020, BSBNH10, 127-1231, 144-NH10, A578393, A39716, SBKNH10 OEM Numbers Are Provided for Reference Only. Please Verify Fit Prior To Ordering. Aftermarket Replacement 10 Pack Shearbolt & Nut Kit Fits Ford/New Holland Hay Baler Models: 1280, 1281, 1282, 1290, 166, 178, 2000, 268, 269, 270, 271, 272, 273, 275, 280, 281, 282, 285, 290, 310, 65, 67, 68, 78, 99, Super 67, Super 68, Super 69 Kit Includes: (10) Bolts: 5/16"-18 x 2" hex head, grade 5, plain finish. .312" shank (10) Nuts: 5/16"-18, steel, hex locknut, zinc plated Replaces Part Numbers: 578393, 2619-020, BSBNH10, 127-1231, 144-NH10, A578393, A39716, SBKNH10