• Cortex Fascia Hidden Fastening System - Hide the heads of deck screws on market-leading deck boards 
• TrapEase Fascia - The ultimate color matched fascia fastening system.
• TrapEase 3 Composite Deck Screw - For all three types of synthetic decking: composite, PVC, and capstock  
• GuardDog Exterior Wood Screw - For use in pressure treated, cedar, redwood and chemically treated lumber
• TrapEase3 AutoFeed Composite Deck Screws - TrapEase3 AutoFeed Composite Deck Screws drive productivity on the jobsite while creating a great finished look in Trex Transcend®, Trex Select®, and AZEK® PVC decking.
• LedgerLOK Structural Wood Screw - For attaching deck ledger boards to the rim joist of a house with no predrilling
• LedgerLOK Flat Head Structural Wood Screw - For attaching deck ledger boards to the rim joist of a house with no predrilling
• ThruLOK Through-Bolt Replacement - The strength of a through-bolted connection for multi-ply beams, deck posts, carrying beams and more

GRK's line-up of multi-purpose & structural fasteners include:

• GRK's finish trim head screws offer a professional look with a professional finish. Designed for most fine carpentry applications, as well as window extension jambs, joining cabinets, and more.
• GRK’s Low Profile Cabinet™ Cabinet screws are designed for fast cabinet installation with a washer-style head that seats flush which increases holding power.
• The RT Composite™ Exterior Trim Head screw is a specially designed fastener for attaching composite and cellular PVC materials.
• GRK's Finish Trim Head 305 Stainless Steel Screws are designed for applications that require superior corrosion resistance in outdoor environments with high moisture content including boardwalks, piers and docks on lakes.
• GRK's Finish Trim Head 316 stainless-steel screws are designed and recommended for applications where extreme corrosion resistance is necessary, such as environments with high exposure to chlorides and in coastal applications within 1 mile of the coast.
• GRK’s White Low Profile Cabinet™ screws are designed for fast cabinet installation with a washer-style head that seats flush which increases holding power.
• The White RT Composite™ Exterior Trim Head screw is a specially designed fastener for attaching composite and cellular PVC materials.
• RT Composite™ 305 Stainless Steel Screws are designed for applications that require superior corrosion resistance in exterior environments with high moisture content, such as boardwalks, piers and docks on lakes.

GRK Fasteners offer a line of specialty fasteners and accessories that include:

• Top Star™ Adjustable shim screw is a screw within a screw that allows you to install wooden doors or windows without the use of shims.
• Caliburn™ Concrete Screws heavy duty concrete and masory fasteners are professionally engineered with a patented thread design for ease of driving the screw into concrete and similar applications.
• MSS™ Metal Siding Screw has powder-coated head for a clean, finished look, this screw has an integrated washer-head and is complimented by a rubber washer below the screw head. This feature also helps protect the washer from prolonged exposure to the sun for long-lasting, secure siding installations.
• GRK Star Drive Bits provide six points of contact with our star drive head screws. The star drive helps to eliminate stripping for improved productivity.