Regular Contact Belleville Washer Bolt Size 5/8"/M16 31.50-32.50Mm Od X 16.40-16.83Mm Id 2.74-2.86Mm Th X 3.60-4.10Mm Ht Spring Steel Heat Treated Oil Finish Nf E 25-511 Spec 680-B45-1Y
Regular Contact Belleville Washer Bolt Size 5/8"/M16 31.50-32.50Mm Od X 16.40-16.83Mm Id 2.74-2.86Mm Th X 3.60-4.10Mm Ht Spring Steel Heat Treated Oil Finish Nf E 25-511 Spec 680-B45-1Y