Strength Meets Speed. ThruLOK offers the speed of a LOK fastener with the strength of a through-bolted connection. No need for pre-drilling or a wrench, simply install with a drill in seconds. The ThruLOK's galvanized coating makes it compatible with ACQ treated lumber. ThruLOK is backed by a lifetime performance guarantee.

ThruLOK is the newest addition to the FastenMaster LOK Line of structural wood-to-wood fasteners. ThruLOK offers the speed of a LOK Line Product and the strength of a through bolted connection.

ThruLOK is a three part assembly including a ThruLOK fastener featuring the patent pending Paddle Point, engineered washer, and LOK-Nut.

ThruLOK comes in specific lengths that allow contractors to replace their 1/2 inch carriage and through bolts in three primary deck applications:
- 6-1/4 inch fastener - Single 2x to 4x Decking Posts
- 7 inch fastener - Notched 6x Carrying Beams
- 8 inch fastener - Double 2x to Single 4x Decking Posts