M4 x 0.7mm Nylock Nut (25 Pack) - ServoCity®

These M4 locknuts have a nylon insert that the threads of a mating screw must form threads in upon insertion.  The displaced nylon will continue to hold tension on the screw threads which act as a locking mechanism to prevent the screw from loosening under vibration.  While M4 is not a go-to in Actobotics®, they are sometimes necessary to have when utilizing parts from our metric build-system, goBILDA®.

7mm Combination Nut Driver - ServoCity

1609 Series V-Groove Bearing (4mm ID x 10.5mm OD, 6mm Thickness) - 2 Pack - ServoCity

M4 x 0.7mm Nylock Nut (25 Pack) - ServoCity®

3408 Series V-Groove Pulley - 2 Pack - ServoCity®

This steel ball linkage has an M4 threaded female shank so that you can attach it to an M4 screw, threaded rod or ball linkage which has a male shank.

2913 Series Steel Ball Linkage (Female M4 x 0.7mm, 24.1mm Length) - 2 Pack

These M4 locknuts have a nylon insert that the threads of a mating screw must form threads in upon insertion. The displaced nylon will continue to

M4 x 0.7mm Nylock Nut (25 Pack)

1143 Series Mini Low-Side U-Channel Bundle - ServoCity®

External-tooth lock washers bite into the head of the screw and the surface under the washer in order to prevent loosening due to vibration.

2810 Series Zinc-Plated Steel External - Tooth Lock Washer (4mm ID x 8mm OD) - 25 Pack

Plastic Hinge Block - 25 Pack

1143 Series Mini Low-Side U-Channel (12 Hole, 312mm Length) - ServoCity

1202 Series Angle Pattern Mount (1-3)