Holosun 509t stainless replacement clamp screw

Dynamic Advantage LLC
SKU:
509TSCR2
$3.99
(1 review)
Current Stock:
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Replacement screw for the Holosun 509t and similar optic 

This screw replaces the crossbolt which clamps the optic to the optic plate/mount.

Hex drive

Black oxide is steel alloy

Stainless is 18-8 

Disclaimer: These have domed heads compared to OEM. It does not affect function but will fit into the recess with a different appearance than OEM screws.

No blue loctite is shipped pre-installed on these. This is to allow the user to apply a drop of blue loctite and torque to proper specs. Dried loctite affects torque values.

Reviews

  • 1
    Holosun 509T Replacement Screw

    Posted by Donald Leach on Jul 6th 2026

    This screw might work on something else but it sure doesn't come anywhere near to fitting the Holosun 509T.