Narrow Contact Belleville Washer Bolt Size 3/8"/M10 19.58-20.42Mm Od X 10.20-10.56Mm Id 1.55-1.65Mm Th X 2.10-2.60Mm Ht Spring Steel Heat Treated Oil Finish Nf E 25-511 680-B31-1A
Narrow Contact Belleville Washer Bolt Size 3/8"/M10 19.58-20.42Mm Od X 10.20-10.56Mm Id 1.55-1.65Mm Th X 2.10-2.60Mm Ht Spring Steel Heat Treated Oil Finish Nf E 25-511 680-B31-1A