Arrowmax AM-13CS3040 Versatile Countersunk M3x40 Allen Screws 10-Pack [AM-13CS3040]

Arrowmax AM-13CS3040 Screw Allen Countersunk M3x40 (10)

Price:

AUD$6.08

Brand:

Arrowmax

Model:

AM-13CS3040

Condition:

Brand New

Quantity:

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Description
FAQ

Durable Countersunk Screws for Hobbyists

These M3x40 countersunk Allen screws are a practical choice when you need tidy, low-profile fixings. They help keep assemblies secure without protruding heads.

Low-profile heads to prevent interference

The countersunk form ensures the screw sits level with panels and moving surfaces to reduce snagging and preserve smooth operation of linkages and bodies.

General purpose M3x40 sizing

The M3x40 dimension works across many common RC fittings, making these screws handy spares for both new builds and maintenance tasks.

Can I leave them exposed to weather?

They are made from steel for general durability, but routine inspection after exposure to dirt or moisture will keep parts reliable.

Are they safe to use in 3D printed parts?

Yes, they can be used with printed plastics but use gentle torque and consider thread inserts for repeat removal to protect softer materials.

How do I avoid stripping the head?

Use a properly sized Allen key that seats fully in the head and apply steady pressure when turning to prevent rounding.