GRK Fasteners
Wood, Deck and Construction Screws, Star Bits
GRK Fasteners offers star drive wood, deck, construction, cabinet, trim, multi-purpose and concrete screws, plus a carbon steel star drive power bit. The range includes Deck Elite screws, RSS structural screws and Caliburn concrete screws. The T40 power bit suits Caliburn XL and RSS structural screws, so check the screw type before buying.
View GRK Fasteners Buying Guide & FAQs
Buying Guide: Choosing Screws and Star Drive Bits
Deck, Structural and Construction Screws
Deck Elite No. 9 x 3 in. L star screws are high corrosion resistant, and a silver star trim head deck screw is also offered. Star round head structural screws, such as No. 10 x 3-1/8 in. L, suit beams, ledger boards, stair rails and deck posts. Match the screw number and length to the material thickness and the depth into the base wood.
Trim, Cabinet and Multi-Purpose Screws
UberGrade No. 8 x 3-1/8 in. L trim head screws have a small head for a clean finished look and suit fine carpentry and window extension jambs. Star coated cabinet screws have a washer head that presses flush against the material. R4 multi-purpose screws are for woodworking and plastic work, and their CEE thread reduces splitting.
Star Drive Power Bits
The T40 star drive power bit is carbon steel with a blue finish, and it suits Caliburn XL and RSS structural screws. The bit has six points of contact with the screw head. Some R4 multi-purpose screws include a T25 bit, so match the bit size to the star drive on your screw head before driving.
Frequently Asked Questions
What does GRK Fasteners make?
GRK Fasteners makes star drive wood, deck, cabinet, construction, trim, multi-purpose and concrete screws, including Deck Elite screws, RSS structural screws, Caliburn concrete screws, Fin/Trim screws, UberGrade screws and coated R4 screws. It also makes a T40 star drive power bit.
How do I choose the right screw size or bit?
Start with the screw number and length, such as No. 9 x 3 in. L, and measure the material thickness plus the depth into the base wood. Match the bit to the star drive on the screw head, such as a T40 bit for Caliburn XL or RSS structural screws, and check the star size on the old screw before buying.
Which GRK screws resist corrosion?
Deck Elite No. 9 x 3 in. L star screws are high corrosion resistant, and Caliburn concrete screws are Climatek coated for high corrosion resistance. Coated R4 multi-purpose screws also carry Climatek corrosion protection. Check the finish of the screw you are replacing before using screws in damp or outdoor settings.
