Customized version of http://www.thingiverse.com/thing:1134586

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=1134586

Using the following options:

fastener_type = 200
clasp_thickness = 2
holder_height = 12
guard_width = 12
oversize = 1
clasp_clearance = 2
mount_hole_diameter = 3
countersink = yes
guard_depth = 12
count = 6
clasp_arc = 250
resolution = 180
mount_thickness = 3
probe_diameter = 10