HeadLOK Structural Wood Screws

Headlok Structural Wood Screws are engineered for heavy duty wood construction tasks such as SIP Panel construction, nail board attachment, and multi-ply beam connections. HeadLOK flat head fasteners require no predrilling and offer higher design shear than 3/8" lag screws.
SKU: HPF278
$139.95

Typically ships in 1-2 business days
Details

The FastenMaster HeadLOK Structural Wood Screw is a flat head screw engineered for a wide range of heavy duty wood construction applications including:
• Structural Insulated Panel construction
• Stress Skin/Timber frame connections
• Deck framing
• Stair stringers
• Two, three and four ply beam connections
• Hanging cabinets

HeadLOK Screw Features
• Sharp gimlet point for fast, one step installation into wood and OSB.
• Aggressive 2” thread for holding and withdrawal strength.
• Spider Drive design provides 8 points of contact, which reduces the potential of stripping.
• One Spider Drive bit is included per pail.
• Wafer head eliminates the need for a washer and offers dramatically increased pull through strength.
• Self drilling for most applications.
• Low profile head does not "Telegraph" through cover layer.
• Chamfer under head for increased strength.
• Highly corrosion resistant.
• American Made.

HeadLOK Benefits
• HeadLOK fasteners replace 3/8" lag screws for many applications.
• Complies with national building codes.
• Suitable for both pressure treated applications and exterior applications.• Wide Head for increased loads without the need for a washer.
• Specifically heat treated to maximize strength while maintaining ductility.
• 2" of thread for greater holding strength.
• Spiderdrive offers great bit engagement.

HeadLOK Screw Installation Tips
• HeadLOK should be installed using a high torque, 1/2" variable speed drill (18V if cordless).
• Drive the HeadLOK head flush to the surface.
• No predrilling required when proper end and edge distances are maintained.

HeadLOK Screw Guarantee
• HeadLOK is guaranteed not to rust or corrode for the life of the project. The fastener has also been tested and approved for use in ACQ.
• HeadLOK is not recommended for saltwater applications.

Product Resources
HeadLOK Screw Product Guide
FastenMaster HeadLOK Catalog Page
OMG FastenMaster HeadLOK Guarantee of Performance
Technical Report - Use of HeadLOK Fasteners to Attach Cladding to Wood Framing through Foam Sheathing
Technical Report - Use of HeadLOK Fasteners to Provide Stud to Top and Bottom Plate Uplift Attachment
ICC ES Evaluation Report
Safety Data Sheet - Fastenmaster Fasteners

Specifications
Reviews Write a Review
Customer Reviews
4.8 Based on 17 Reviews
5 ★
94% 
16
4 ★
0% 
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3 ★
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2 ★
6% 
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Filter Reviews:
SJ
05/16/2024
Sherri J.
United States
I recommend this product

We call them "pan cake" screws

Had a roof repair job come up had to use "pan cake" screws from our job site which left us short. Places an order and these were here on site less than 36hrs later. Love the screws hate to use anything else.

A
12/30/2024
Anonymous
United States

HeadLok Wood Screws

i have been using these wood screws for many years. worth every penny.

PH
06/23/2024
Penny H.
United States
I recommend this product

10” headlock screws

Rapid service from ordering to delivery, and exactly what we wanted.

A
03/18/2024
Anonymous
United States
I recommend this product

HeadLOK Structural Wood Screws

Great Product and quick shipping reasonably priced.

A
02/04/2024
Anonymous
United States
I recommend this product

Headlock fasteners

Great worked as expected , timely order and delivery

W
01/23/2024
Wayne SVG verified by SHOP
United States

Awesome first experience with Twin Creeks. Thank you

A
12/29/2023
Anonymous
United States
I recommend this product

Thank you.

These folks are great. Great price... fast shipping

A
11/30/2023
Anonymous
United States
I recommend this product

Headlok 9”

I’ve ordered the same product in the 250 pal numerous times and they’ve been great. However, this bucket was horrible. They must have had a bad manufacturing run as 2 out of 3 strip out even when pre drilled.

MS
11/11/2023
mark s.
United States
I recommend this product

Twin Creeks sourced hard to find fasteners for my project !

Top notch experience; Twin Creeks sourced hard to find fasteners, with an easy to use - no hassle website, at a fair price. The order showed up at my door exactly as specified, and quicker than I anticipated. Thanks !

JL
10/22/2023
Joffrey L.
United States
I recommend this product

👍👍

Best price and fast delivery

SN
10/11/2023
Salvatore N.
United States
I recommend this product

Great product!

These things are great! I made a retaining wall with upright logs and these are holding them together with no problem and drove in like a drill bit!

WS
05/19/2023
William S.
United States
I recommend this product

Great customer service!

Product was defective from factory, but they went out of their way to make it right. Will be doing business with them from now on. Also helps that they had the best prices of any competitor.

Product Questions2 questions

Product Questions

  • Can I still get 16" Headlok screws?

    Unfortunately, Fastenmaster recently discontinued the 9-1/2", 15", 16", and 18" Headlok screws.

  • What's the difference between the HeadLOK screw and the TimberLOK screw?

    The head is the biggest difference between the Headlok and Timberlok screws.  The Headlok has a flat head that lays flat on top of the surface of the board.  The Timberlok has a hex head that countersinks into the board.  Other attributes such as the shank diameter, coating, and thread length are the same.