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All HeadLoks: 0.625" dia. Spider Drive;
Point Style: Gimlet; Coating CR-10

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Headlok
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We  stock  specialty  and hard-to-find  items
  Large-diameter/long-length galvanized LAG SCREWS up to 1" in diameter and up to 24" in length  

 
  Large-diameter/long-length galvanized CARRIAGE BOLTS up to 1" in diameter and up to 24" in length

 
  Large-diameter/long-length galvanized HEX BOLTS up to 1" in diameter and up to 48" in length  
 
See our Specialty Items page for details.
 
 
Please note that a reseller permit is required for California sales.
 
Last update: Febuary 15th 2017
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USEFUL TIP: Use HeadLok in Place of a Small-Diameter Long-Length Lag Screw!

ACQ-Approved; FM-Approved
Stronger than 3/8" lags!

PRODUCT DESCRIPTION
The HeadLok is a specialized flathead fastener engineered for a wide range of panel applica-tions, including Structural Insulated Panels, Prefabricated Wall Panels, and Nailboard. It can be used in wood, structural concrete, and corrugated- and structural-steel substrates. Comes in lengths up to 18".

 

FEATURES & BENEFITS
Aggressive thread, for holding power and withdrawal strength.
Chamfer under head, for increased strength.
Extra-large wafer head dramatically increases pull-through resistance and eliminates the need for additional washers.
ACQ-tested and approved.
Patent-pending Spider Drive system eliminates cam-out. Free drive bits in every bucket.

COATING
OMG CR-10 corrosion-resistant coating exhibits less than 15% red rust after 30 Kesternich cycles. CR-10 coating exceeds FM Approval Standard 4470.

APPLICATION
Install HeadLok using a high-torque low-rpm 1/2" corded screw gun or 18-volt cordless drill. Bring underside of the washer head flat to the surface. Do not over-drive. No pre-drilling required in wood.