• 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.