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:

countersink = no
guard_depth = 14
mount_hole_diameter = 3
count = 4
oversize = 1
resolution = 180
clasp_clearance = 2
mount_thickness = 3
clasp_thickness = 2
fastener_type = 190
guard_width = 13
probe_diameter = 9
holder_height = 13
clasp_arc = 250
mount_hole = yes