Comparison : Item # M004401C, M004401C - 4-40 Miniature Self-Clinching Nuts
Item # M004402C, M004402C - 4-40 Miniature Self-Clinching Nuts
Item # M006321C, M006321C - 6-32 Miniature Self-Clinching Nuts
Item # M006322C, M006322C - 6-32 Miniature Self-Clinching Nuts
Item # M008321C, M008321C - 8-32 Miniature Self-Clinching Nuts