M3×8mm Stainless Steel Phillips Pan Head Machine Screw A2 50-Pack

M3×8mm Stainless Steel Phillips Pan Head Machine Screw — A2, 50-Pack

The M3×8mm A2 stainless steel Phillips pan head machine screw provides additional thread engagement for thicker panels, stacked components, and applications where M3×6mm is too short. The 8mm length is the standard for MGN9 and MGN12 linear rail mounting, aluminium extrusion bracket assembly, and electronics enclosure panels with a washer or spacer.

Key Specifications

Parameter	Value
Thread Size	M3
Length	8mm
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?

• 8mm length for thicker assemblies — ideal where M3×6mm is too short; provides full thread engagement through thicker panels, brackets, and stacked components
• Linear rail standard — M3×8mm is the standard mounting screw for MGN9 and MGN12 linear rails on 3D printers and CNC machines
• A2 stainless steel — corrosion-resistant for electronics, outdoor, and humid environments
• Phillips drive — compatible with all standard Phillips #1 screwdrivers
• 50-pack quantity — practical workshop stock for prototyping and production

Typical Applications

• MGN9 and MGN12 linear rail mounting on 3D printers and CNC machines (M3×8mm standard)
• Aluminium extrusion bracket and corner bracket assembly (2020, 3030 profiles)
• Electronics enclosure panel mounting with washer or spacer
• 3D printer carriage and toolhead assembly (Voron, RatRig, CoreXY builds)
• Robotics chassis thick bracket mounting (M3×8mm for 3–4mm thick brackets)
• PCB mounting with thick standoffs or spacers

Compatible With

• MGN9 linear rail (M3 mounting holes, 8mm screw standard)
• MGN12 linear rail (M3 mounting holes, 8mm screw standard)
• M3 T-slot nuts for 2020 and 3030 aluminium extrusion
• M3 hex nuts, nyloc nuts, and flange lock nuts
• M3 flat washers and split lock washers
• Phillips #1 screwdriver; magnetic tip recommended

Package Contents

• 50× M3×8mm A2 stainless steel Phillips pan head machine screws

Frequently Asked Questions

Q: What screw length do I need for MGN9/MGN12 linear rail mounting?

A: M3×8mm is the standard screw length for mounting MGN9 and MGN12 linear rails to aluminium extrusion. The 8mm length provides full thread engagement in the M3 T-slot nut while passing through the 3mm rail mounting hole and the extrusion wall.

Q: When should I use M3×8mm instead of M3×6mm?

A: Use M3×8mm when: (1) mounting through a panel thicker than 2mm, (2) using a washer that adds 1–2mm to the stack, (3) mounting linear rails to extrusion, or (4) when the tapped hole depth allows for longer engagement. Use M3×6mm for standard thin panel and PCB standoff mounting.

Q: Are these compatible with Voron 3D printer builds?

A: Yes. Voron 2.4 and Voron Trident use M3×8mm screws for linear rail mounting, gantry assembly, and thicker bracket fastening. Check the Voron BOM for the specific quantities required per build size.

Enjoy free standard shipping on all orders over $199 USD. Orders are processed within 1–2 business days.

Not satisfied? Return any item within 90 days of purchase for a full refund or exchange. Items must be in original condition.

We are committed to quality, reliability, and customer satisfaction. Every product is carefully selected and tested to meet the highest standards.