Flange/Collar Nuts - Inch

Revised - September 2009

*** STANDARD COLLAR NUT ***     *** STANDARD COLLAR NUT SPECS ***
Part Number Bolt Size
(A)
B C D E
331-19901 10-24 5/16 3/8 1/2 1/16
331-19902 1/4-20 5/16 1/2 5/8 1/16
331-19903 5/16-18 3/8 9/16 3/4 1/16
331-19904 3/8-16 1/2 11/16 7/8 1/8
331-19905 7/16-14 9/16 3/4 15/16 1/8
331-19906 1/2-13 11/16 7/8 1 1/8 5/32
331-19907 5/8-11 13/16 1 1/16 1 3/8 3/16
331-19908 3/4-10 1 1 1/4 1 5/8 1/4
331-19909 7/8-9 1 1/8 1 7/16 1 3/4 1/4
331-19910 1-8 1 1/4 1 5/8 2 1/4
331-19911 1 1/8-7 1 3/8 1 13/16 2 1/4 1/4
331-19912 1 1/4-7 1 3/8 1 13/16 2 1/4 1/4
331-19913 1 1/2-6 1 1/2 2 3/16 2 3/4 1/4