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

Thru-Hole Tetrix to Threaded goBILDA® Pattern Adaptor (16-11)

Round-End Steel U-Bracket - ServoCity®

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

4mm ID Aluminum Spacer (8mm OD, 43mm Length) - 4 Pack - ServoCity®

Zinc-Plated Steel Hex Head Screw (M4 x 0.7mm, 8mm Length) - 25 Pack - ServoCity

3417 Series 5mm HTD Pitch Set-Screw Pinion Timing Belt Pulley (8mm REX™ Bore, 24 Tooth)

1/4 Bore Flat Pillow Block (16mm x 32mm Mounting Pattern) - 2 Pack - ServoCity

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

Split-lock washers flatten as a screw or nut is tightened, which creates tension between the head and the surface under the washer. This tension

2809 Series Zinc-Plated Steel Split-Lock Washer (4mm ID x 7mm OD) - 25 Pack