Read our Privacy Policy.
Using most masonry fasteners can be such a hassle. First you drill a clearance hole in the lumber, then a hole in the masonry for the anchor sleeve, (meanwhile making sure everything is still lined up). Finally, everything comes back apart so you can drop the anchor sleeve in the hole. Hopefully, the sleeve will grab when the screw is tightened.These great new concrete screws don’t use any type of anchor sleeve at all. In fact, all you do is drill a hole into the concrete through the part you are anchoring and drive the screw. Because of the special thread pattern and extra hard steel, the screw cuts its own threads in the concrete. These screws aren’t just painted for looks. Their color comes from a special epoxy coating, so they pass a 25 cycle Kesternich corrosion test with less than 15% red rust! Give them a try - they are perfect for attaching framing lumber, electrical boxes, brackets, or almost anything else to concrete. Not recommended for use in brick or cinder block. This item requires a non-standard 5/32" diameter pilot hole.
CONCRETE SCREW ENGINEERING DATA
Independent testing of the 3/16" masonry screws was performed in a similar manner in 3,725 psi hard rock concrete. The pull-out values shown below are the average for ten tests:
REVIEW SNAPSHOT®
(based on 1 review)
Reviewed by 1 customer
Displaying review 1
Back to top
I like square drive screws
By roger
from princeton, NJ
Comments about 3/16'' x 1-3/4'' Flat Head Steel Epoxy Coated Concrete Screws:
I have both phillips and these McFeely's combo drive screws. The square drive is much better, rarely slips. And since these are combination, you can even use a phillips driver if you don't have the square drive.