Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

3/8-in x 6-in Black Galvanized/Coated Flat -Head Exterior Structural wood screws 50 -Pack

Ratings & Reviews for FastenMaster 3/8-in x 6-in Black Galvanized/Coated Flat -Head Exterior Structural wood screws 50 -Pack

4.7
101
Review
 4.7 out of 5
101 Reviews

2 Star
0%

94% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The HeadLOK structural screws are a high-quality product that performs well for a variety of outdoor and construction projects. Many reviewers praised the screws' strong holding power, ease of use, and ability to securely fasten thick lumber without the need for pre-drilling. Several customers noted the screws' effectiveness in applications like building retaining walls and constructing heavy-duty shelving. However, some drawbacks were mentioned, such as the included driver bit being prone to stripping and the screw threads not being wide enough for countersinking. Additionally, some customers felt the screws are quite expensive compared to other fastener options.

Customer review summary generated by AI, including incentivized reviews.
101 Customer Reviews

Gaurd your bit

Lost bit, can't find a replacement anywhere at Lowes, has 8 points, not 6 like most torx.

December 4, 2021
From 6-in Black Ecoat Flat -Head Exterior Structural wood screws 50 -Pack Verified Purchaser
Was this Review Helpful ?
Response from FastenMaster team

Thank you for your review. The spider drive bits are typically located with the Fasten Master products in the isle, not with the other bits. If you s...

FastenMaster teamDecember 6, 2021

fastenmaster

Easy to use. Doesn't split wood.

Haven't had to predrill holes. So far none the screws have not cracked one stud. I used them to mount heavy duty shelves and so far no issues.

October 26, 2021
From 6-in Black Ecoat Flat -Head Exterior Structural wood screws 50 -Pack Verified Purchaser
Was this Review Helpful ?

Connecting 4x4 side by side - no muss, no fuss

Would Recommend

I needed to connect three 4"x4" pressure treated posts side by side. All I needed to do is align the posts and screw in. I first aligned 2 posts and screwed in from one side, then added the 3rd post, Screwed in from the other side. Although I didn't have to, drilled a 3/16" pilot hole through the outer post. I was able to screw them in with heads flush to the posts. These posts will not warp or twist. No splitting of wood. I plan to use these screws in more projects. Easy peasy.

Was this Review Helpful ?

Would Recommend

The screws worked well to secure landscaping timbers for 3 beds. I would use them again, if needed.

Was this Review Helpful ?

These are aweful

Would Not Recommend

The head WILL strip if you dont drill a pilot hole. 65% of thr ones i had were bent so that the head travelled in circles around the shaft. I had to back out 6 of them with vice grips due to issues. And the included bit does not seat well to the screw head

Was this Review Helpful ?
Response from FastenMaster team

Thank you for your review of our HeadLOK screw. Please contact us at your convenience to better assist you. You can email us at techsupport@faste...

FastenMaster teamMarch 23, 2021

fastenmaster

great for reinforcing old beams and joists

seem pricey, but great for tying together my 100 year old, triple 2x8's that are holding up my house

February 22, 2021
From 6-in Black Ecoat Flat -Head Exterior Structural wood screws 50 -Pack Verified Purchaser
Was this Review Helpful ?

They rust

Would Not Recommend

I did a lengthy study of code and construction while rehabbing a detached garage into a major man cave. I was very disappointed to see them corrode. Backing some out of treated lumber (rather wet treated lumber) I found many screw threads corroded. I also used other FastenMaster screws for ceiling rafters, and those hex heads corroded. I am within 1000 feet of salt water on the East coast oceanfront, but inland from the ocean.

Was this Review Helpful ?