HEX ACORN (CAP) NUTS 
MOLDED NYLON 6/6
All Dimensions in Inches
Thread Size Across Flats Across Corners Overall Height
4/40 .250 .275 .280
6/32 .305 .350 .325
8/32 .330 .385 .375
10/24 .365 .420 .400
10/32 .365 .420 .400
1/4-20 .425 .510 .475
5/16-18 .500 .575 .530
3/8-16 .560 .630 .620
1/2-13 .750 .860 .810
5/8-11 .925 .1.050 1.000