SPAX 1/4" x 3-1/2" Exterior Washer Head Structural Wood Lag Screws Powerlags Torx T-Star (50 EA) Bit Included Heavy Duty Rust Resistant

When I reported a problem with the delivery of my order, SPAX responded fast and took care of it immediately. Great service. Very happy with the outcome. Will be a repeat customer.

Tough product, unlikely to strip out like Phillips head screws. Big heads to hold strong without sinking too deep. These are my go to screws, but I also use them sparingly because of the relatively expensive cost.

Great product is the job right for me

Product description is somewhat vague - there is no such SKU as written, 4581820000000 (thus four stars).Ordered from Amazon, not a 3rd-party vendor, and got exactly what I wanted: a box of SPAX T-Star Washer Head HCR® PowerLags® (QTY: 50) 1/4 x 3-1/2 inch, manufacturer's SKU 4581820700905. Pretty much what I hoped to get, and priced right!

A faster lag bolt by SPAX. I assembled my chicken tractor using 'deck-screws from the lumber yard (not the big box store) and using wheels to move it. The joints started to "fade, move, become un-square". once I squared the 'tractor' I locked the joints with the SPAX screws.Should have used construction glue on all the joints. My missteak. SPAC solved a whole lot of my problems!

Used these screws to build a retaining wall. They seem to hold well and the star bit allows for a lot of torque

Work really well, fasten tight, no splitting. No need to pre-drill. They are alittle pricey.

Didn't perform as advertised, stripped easily