In this category there are screws, nuts and standoffs that we offer. There you will find M3 screws and standoffs of various lengths, M3 nuts, etc.
FYI: Mounting your PCBS etc. to the inside of an encloser - General Electronics - Arduino Forum
Screws, nuts & Standoffs - Soldered Electronics
Guide to Fastening Hardware Using Surface Mount Technology
SMT / Solderable Standoff Nuts - M3 x 3mm - 10 pack : ID 4207 : Adafruit Industries, Unique & fun DIY electronics and kits
333001 Soldered Electronics, Development Boards, Kits, Programmers
Screws, nuts & Standoffs - Soldered Electronics
A guide to PCB standoffs
KF2-M2 gegurtet ohne Klebepunkt Taped SMT-compliant nuts for printed circuit boards
Power, Step-up & Step-down - Soldered Electronics
SMT-BSO M4 Nut Soldered Circuit Board Surface Mount Conductive Stud PCB Standoff Blind Hole Spacer Circular Copper Column - AliExpress
Reaction game Solder kit