Carbon steel undersized hex nut can be used for light to medium duty fastening applications, such as securing access panels.
Diameter Thread Count Width Across Flats (A/f) Thickness 1/4" 20NC (Coarse)
28NF (Fine)
10mm 5mm 5/16" 18NC (Coarse)
26NF (Fine)
12mm 5.50mm 3/8" 16NC (Coarse)
24NF (Fine)
14mm 6.40mm 7/16" 14NC (Coarse)
20NF (Fine)
15.80mm 7.20mm 1/2" 13NC (Coarse)
20NF (Fine)
19mm 8.20mm 9/16" 12NC (Coarse)
18NF (Fine)
22mm 9.60mm 5/8" 11NC (Coarse)
18NF (Fine)
23mm 9mm 3/4" 10NC (Coarse)
16NF (Fine)
26mm 12mm
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