Comparison : Item # ML004401C, ML004401C - 4-40 Miniature Self-Locking Self-Clinching Nuts
Item # ML004402C, ML004402C - 4-40 Miniature Self-Locking Self-Clinching Nuts
Item # ML006321C, ML006321C - 6-32 Miniature Self-Locking Self-Clinching Nuts
Item # ML006322C, ML006322C - 6-32 Miniature Self-Locking Self-Clinching Nuts
Item # ML008321C, ML008321C - 8-32 Miniature Self-Locking Self-Clinching Nuts