M3×6mm Stainless Steel Phillips Pan Head Machine Screw A2 50-Pack

M3×6mm Stainless Steel Phillips Pan Head Machine Screw — A2, 50-Pack

The M3×6mm A2 stainless steel Phillips pan head machine screw is the single most commonly specified M3 screw length in electronics assembly, 3D printing, and robotics. The 6mm length provides optimal thread engagement in standard M3 standoffs, tapped aluminium extrusion, and M3 hex nuts, making it the default choice for Voron, Bambu Lab, Prusa, and Raspberry Pi builds.

Key Specifications

Parameter	Value
Thread Size	M3
Length	6mm
Material	A2 Stainless Steel
Drive	Phillips (cross head)
Head Style	Pan head
Thread Type	Machine thread (metric coarse, 0.5mm pitch)
Quantity	50pcs per pack
Standard	ISO 7045 / DIN 7985

Why Choose This Screw?

• Most common M3 length — M3×6mm is the default screw length for PCB standoff mounting, aluminium extrusion T-slot assembly, and electronics enclosure panel fastening
• Optimal thread engagement — 6mm provides full thread engagement in standard M3 standoffs (6mm, 8mm, 10mm height) and M3 hex nuts
• A2 stainless steel — corrosion-resistant for electronics enclosures, outdoor equipment, and humid environments
• Phillips drive — compatible with all standard Phillips #1 screwdrivers and magnetic bit drivers
• 50-pack quantity — practical workshop stock for prototyping and small production runs

Typical Applications

• PCB mounting to M3 brass or nylon standoffs (most common application)
• 3D printer frame assembly — Voron 2.4, Voron Trident, Bambu Lab X1/P1/A1, Prusa MK4/MINI+
• Raspberry Pi 3/4/5 case and HAT mounting (M3 standard)
• Arduino Mega and shield mounting
• Aluminium extrusion T-slot assembly (2020 profile, M3 T-slot nut)
• Robotics chassis and servo bracket mounting
• Electronics enclosure and instrument panel assembly

Compatible With

• M3 brass standoffs (6mm, 8mm, 10mm, 12mm height)
• M3 nylon standoffs and hex standoffs
• M3 hex nuts (DIN934), nyloc nuts, and flange lock nuts (DIN6923)
• M3 flat washers and split lock washers
• Aluminium extrusion 2020 T-slot M3 nuts
• Phillips #1 screwdriver; magnetic tip recommended

Package Contents

• 50× M3×6mm A2 stainless steel Phillips pan head machine screws

Frequently Asked Questions

Q: Why is M3×6mm the most common screw in 3D printing?

A: M3 is the standard thread for most 3D printer frame extrusions, linear rails, and component mounting. 6mm provides full thread engagement in standard M3 T-slot nuts and standoffs without being so long that it bottoms out in shallow holes. Voron, Bambu Lab, Prusa, and Creality all use M3×6mm extensively.

Q: Can I use M3×6mm screws for Raspberry Pi mounting?

A: Yes. Raspberry Pi 3, 4, and 5 use M3 mounting holes (2.75mm hole diameter, M3 clearance). M3×6mm screws with M3 standoffs are the standard mounting solution for Raspberry Pi in electronics enclosures and custom cases.

Q: What is the thread pitch for M3 screws?

A: M3 metric coarse thread has a pitch of 0.5mm (0.5mm per revolution). This is the standard pitch for M3 machine screws and is compatible with all standard M3 nuts, standoffs, and tapped holes unless specifically marked as fine thread.

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