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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


DecksDirect # 6161

ThruLOK Product Literature (454 KB) 

ThruLOK Deck Rail Post to Rim Joist Technical Bulletin (379 KB) 

ThruLOK Carrying Beam to Notched Support Post Technical Bulletin (230 KB) 

Drive TypeHex
Head TypeHex
Screw Length6-1/4 in, 7 in, and 8 in
Screw Size1/4 in
Material TypeGalvanized steel
Pack Size6 pack and 24 pack
Coverage Estimaten/a
Included Accessories6 pack: (6) ThruLOK fasteners, (6) ThruLOK-Nuts, (6) ThruLOK-Washers, and (1) 5/16 in Hex driver bit
24 pack: (24) ThruLOK fasteners, (24) ThruLOK-Nuts, (24) ThruLOK-Washers, and (1) 5/16 in Hex driver bit
WarrantyLifetime performance guarantee
OtherNo predrilling required

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