What is an RSS screw?

GRK’s RSS™ screw is made of specially hardened steel to provide you with high tensile, torque, and shear strength. The sharp threads and points bite instantly into the material (including hardwood), reducing the splitting effect due to smaller shanks.

What does GRK stand for in GRK screws?

Acronym. Definition. GRK. G Protein-Coupled Receptor Kinase. GRK.

What are GRK fasteners used for?

For use in heavy duty structural applications such as LVL and deck substructure, as a replacement for lag screws, and other remodeling applications. For use in interior and exterior conditions, and the GRK Climatek coating is approved for use in treated lumber.

Do GRK screws need a pilot hole?

You won’t need to bore a pilot hole, because these screws have serrated threads toward the tip that cut away wood like a saw. The GRKs also add a cut thread at the tip that helps get the screw started and another thread at the shank that enlarges the hole slightly to further reduce splitting.

What type of screws are strongest?

Structural screws (also called “construction” screws) are stronger than lags and make longer-lasting connections. You can just zip them in with any 18-volt drill (no pilot hole required).

Are GRK screws good for pressure treated wood?

GRK fasteners are ICC code approved for exterior use in ACQ pressure treated lumber and have the strength to meet all your general construction needs. A building inspector will be able to use an ESR report to code approve your construction projects.

Are GRK screws stronger?

GRK is a premium screw available only at contractor-oriented lumberyards and online. Structural screws (also called “construction” screws) are stronger than lags and make longer-lasting connections. The straight-sided Torx and Spider bits also hold the screw in place so you can “aim” and drill with one hand.

Are GRK screws self tapping?

They are self-tapping eliminating pre-drilling featuring the W-Cut™ threads for reduced torque, and our Climatek™ AC257 code approved coating. They are ESR code approved under ICC Report ESR-3201. No pre-drilling required for most GRK products, unless required or specified by building material.

Do GRK screws need pilot hole?

Are Hillman screws good?

These screws exceeded all expectations. They’re well-made, solid, and bite well. I would only recommend using them in pre-drilled holes since they’re so thick, I would expect lumber to split right away or over time when these are used without pre-drilling.

Are longer screws stronger?

How big are the GRK RSS series screws?

The GRK RSS series screws that are 3-1/8 in. and longer have 6-CEE threads which enlarge the screw hole for the non-threaded portion of the fastener, allowing the wood to settle easily and increases the screw’s drawing strength.

What do the GRK Screws do for You?

GRK’s feature-rich screws drive jobsite productivity and allow users to keep moving from one job to the next. Drive with Speed, Quality and Confidence with GRK Fasteners™!

What makes a GRK washer head RSS so good?

GRK RSS Rugged Structural Screw has a patented design and made of specially hardened steel to provide customers with high tensile, torque and shear strength. The sharp threads and points bite instantly into material, including hardwood, reducing the splitting effect due to smaller shanks.

What is the policy of Grk fasteners Ltd?

It is the policy of GRK Fasteners Ltd. to provide top quality fasteners that require no predrilling, suitable for all applications and provide strength and finishing that customers and construction codes require.