1.Product details:2.Inspection and product typeInspection:For precision measuring we would recommend the use of Digital Vernier Callipers ... ,Button,Truss,Oval,Binding,Chese,Fillister,etc.2.Drive type: Slotted, Hex, Allen, Torx, Spline Drive, etc 3.Mechanical information ... Class 12.9Professional as one of the leading titanium button slotted bolts manufacturers, Titanium Industry is also well-known among ...