Electronics-Salon Nylon Round Spacer Assortment Kit, for M3 Screws, Plastic.

Gardner Bender SK-832T Electricians Screw Kit, 8-32 Round Phillips Head, 20 pc of ⅔, ⅞, 1, 1¼, 1 ⅝, & 2 in. Electrical Screws, 120 Pc. Kit

Gardner Bender SK-632T Electric Kit

HVAZI abs Plastic Round Spacers Round Straight Tube Assortment Kit for M4 Screws OD 7mm ID 4.2mm

Outlet Spacers - Electrical Outlet Extender Kit by SPACERR

Gardner Bender GSP-24 24 Piece Switch and Receptacle Spacers, Neon Green

T.K.Excellent Flat Head Phillips #6-32 Electrician's Machine Screw Kit,370 Pcs

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Electrical Box Spacer Single Gang 1/4 inch 5 pack

20 Leviton Extra Long 1-1/2" 6-32 Thread Flat Head Device Mounting Screws 80000-PRT

Swpeet 150Pcs Nylon Round Spacer Standoff Screw Nut Assortment Kit, Nylon PA66 Plastic Standoff OD 11mm and ID 6.2mm Length 3mm 4mm 5mm 8mm 10mm 12mm 15mm 18mm 20mm 25mm for M6 Screws Prototyping