Customer Reviews for GRK Fasteners 5/16 in. x 4 in. Star Drive Round Head Rugged Structural Wood Screw (45-Piece per-Pack)

Somebody's stole the teeth 30 to comes with it and some of the screws out of the box.

Made the job easy and sturdy.

This is an amazing design. They were expensive, but a real time saver. The multi-stage shaft is brilliant.

Nice for helping repair a pergola at our home—almost like a small lag bolt. The star drive requires a special driver (included in box) and this works nicely. Great fastener!

Excellent grip, strong joins. Durable and won't rust. Self-drilling. Wide head serves as a washer to distribute the screw's holding power across a larger surface area.

These screws are great Home Depot should stock them in the store not just online .

The box was half empty. And, like, the store would believe me if I’d taken the time to go back and complain!

Excellent to secure shelving supports to the wall and to the shelving frames.

Screws were wonderful to use. Good head and easy to drive. Thanks.

Worked perfect to replace the security screws that come with metal security/ screen doors.

Needed to tighten up my deck. Removed all nails and replaced them with GRK screws. Need lag bolt to pull together my 2x6 boards to 4x6 posts. Purchased the Coated 5/16" x 4" and installed them using my impact driver. I could literally see the lumber being pulled together tight. I use Simpson Strong Tie for metal brackets (joist hangers). However, nothing is better for wood-to-wood fasteners than GRK.

Fasteners worked perfect. Made for easy work

Great dependable, impact-rated fasteners

Easy to use. Very strong. Perfect for my application.

Great solid exterior screw

Much nicer than lags with washers! Start easy, drive easy, look nice.

I’m not sure why they still sell lag bolts….The GRK drive great without

Worked great for what I wanted them for!!!

A good fastener but you have to really put your back into it to keep pressure on the head to prevent stripping of the head. This is true with most of these types of fasteners but seemed a little quick to strip out when the bit slipped out of the head.

Used in a PT wood deck for building beams from multiple 2x material. GRK website has a tech page describing requirements for various applications (flush beam, drop beam, etc). Screws are easy to start, easy to drive.