SPAX 1/4" x 3" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant

I used several hundred of these screws on a small cattle barn and corral I built. They have plenty of holding power. Only one broke and I’m pretty sure that was my fault. Be sure to use with a good impact driver!!

Great structural screw for use in treated lumber and composite lumber. I used in building a large deck with composite lumber, has great pullout resistance and corrosion resistance and the washer head holds pieces together tight.

Excellent product!! No predrilling required - will not split the wood.

Extra sturdy and the washer head keeps your screw from sinking through without pulling the boards together like deck screw tend to do. I’m building a barn with them and haven’t regretted using them. Fantastic product for a low price.

Excellent product prompt shipping

Bought some 8 years ago, more in Dec 2022. Used to buld and/or repair rose beds made with 4x4 'ground contact timbers'. Some of the timbers have been eaten by carpenter ants and/or rotted. While deconstructing these beds to do timber replacements, I have retreived many of the Spax screws. I cleaned them of debris and found them to be in as-new condition. Some of them I had to cut with a sawzall (darn!) in order to get the old timbers out when the heads weren't accessible. This was very difficult work using the best metal cutting blades! I will never use any other fasteners for these beds and other exterior projects! Thank you SpaxUS for a superior product.

Love these ! Wish I could get them local!!

Works fine, I like the Spax better than the Fastenmaster HD carries. The Spax finish is flat so it should hold paint , the HD finish is high gloss and there are a lot of nicks in the finish for rust to start.