Treble Hook Cap

These hook caps install from the front at the hook points rather than from the back at the hook bends.  This makes them less likely to fall off.  Also, hooks with feathers or tinsel can be covered.

To install, pass the hook shank through the side opening in the cap (see pictures).  Align the hook points with the slots, and pull the cap into place.  To remove, push the cap off while holding the hook eye against the bait.  

The hook caps were printed using PLA and the #6 thin wire cap was printed 2 tone to keep from getting it confused with the regular #6.  Alternatively, it could just be printed using some other solid color.  Note that hook sizes are stenciled into the side of each cap.

Material PLA / PETG
Layer Height 0.15mm
Perimeters 4
Infill 100%

Edit 8/13/24: Added #6 0.004" (0.1mm) tighter fit. Initial PETG prints have shown an improved fit for the #6.

Edit 9/27/24: Now recommending PETG because it has held up better over time.

Added three new stl files for the number 6 size.

hook_cap_6_large_font.stl
Changed to a larger font, no changes to hook cap dimensions.

hook_cap_6_minus_4_large_font.stl
Changed to a larger font, hook cap is now stenciled “6”, and “-4”, no changes to hook cap dimensions.

hook_cap_6_thin_wire_large_font.stl
Changed to a larger font, hook cap is now stenciled “6”, and “T”, hook cap slots were tightened up about 0.005”. These caps may be a better fit for thinner wire EWG and round bend hooks.

Edit 11/29/24: Added hook size #8 cap. This can also be used as a replacement for the #6 thin wire for most applications.

Added “2 hook” caps for all sizes. Put one of these on the aft treble to leave one hook exposed, and clip it to the fishing rod hook keeper (see picture). Printing with a brim may be required, especially for the smaller sizes, due to the small foot print. Note that you can quickly make these by cutting one wing off of an existing treble hook cap.