Comparison : Item # CH256-4, Self-Clinching Studs, Flush Head
Item # CH256-5, Self-Clinching Studs, Flush Head
Item # CH256-6, Self-Clinching Studs, Flush Head
Item # CH256-8, Self-Clinching Studs, Flush Head
Item # CH256-10, Self-Clinching Studs, Flush Head