Unifix Hexagon Setscrews - Silver

A2-304 refers to the grade of stainless steel, which offers high corrosion resistance and is the standard for most general-purpose outdoor and indoor hardware.

While A2-304 is rust-resistant, it is generally recommended to use A4-316 grade stainless steel for direct exposure to saltwater or marine environments.

You will need a standard M12 compatible spanner or socket wrench.

Yes, hexagon setscrews of this type typically feature threads along the entire length of the shank.

These are machine screws intended for metal-to-metal or pre-tapped applications. For wood, you would typically need a nut or a threaded insert.

This specific model is 40mm in length, measured from the underside of the head.

Check the thread pitch of the hole to ensure it matches the M12 standard. Ensure the hole is clear of rust or metal shavings.

Ensure the wrench or socket size matches the hexagon head perfectly and is seated fully before applying pressure.

Clean the threads on both the screw and the mating hole. Apply a drop of lubricant to reduce friction and prevent galling.