A-351000

On all open Model A's from 1928-1931, 2 of these wing nuts are used at the top where the windshield rotates.

On 1930-1931 open Model A's they are also used to attach the upper support a to the lower support.

Therefore, two are needed for 1928-1929 and four for 1930-1931.

On all open Model-Ts from 1923-1925, 2 of these wing nuts are used to secure the windshield to the support

For the open Model-T from 1926-1927, 4 pieces are required