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GRK Fasteners are the highest grade of fasteners on the market. Their innovative design combined with a high quality German Steel produces a consistent, durable and time tested product. The only fastener on the market tested by ICC! GRK Fasteners have ratings on sheer strength, pull out, head pull through, tensile strength and more! The tips of the screws are 'W-Cut' & 'Zip-Tip'. 'W-Cut' is a patented thread design which act like a circular saw blade, cutting through any fibrous materials with ease. This unique design reduces the amount of torque required to install the screw and maintains a high pull-out strength. By cutting through rather than pressing fibers aside the 'W-Cut' also reduces material splitting. The 'W-Cut' design is available on all GRK screws 1-1/4" and longer, except Top Star. GRK's 'Zip-Tip' is designed for fast starts in all fibrous materials. The revolutionary Climatek coating is featured exclusively on GRK products. With a gold coated appearance it is the only suck plating which offers rust free protection of 29 Kesternich cycles. Climatek is ideal for your outdoor projects! GRK offers a Limited Lifetime Warranty to original retail purchaser, please come in to Dealers Lumber for additional details. |
| GRK's R4 Self-Countersinking Screw has six self contained cutting pockets which act like a router and transport the "drill dust" away! The GRK R4 is Climatek Coated and is also available in Stainless Steel. The R4 has over 60 sizes available, 4 x 3/8" to 12 x 12". Multi-use: wood, particle board, plastic, sheet metal, cement fiber board, composite decking, wood decking. |
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 | 100 pc 8 x 2" R4 All Purpose Screw 100 pc 9 x 2-1/2" R4 All Purpose Screw 100 pc 10 x 3-1/8" R4 All Purpose Screw 50 pc 12 x 6-3/4" R4 All Purpose Screw 50 pc 12 x 10" R4 All Purpose Screw 575 pc 9 x 2-1/2" R4 All Purpose Screw 350 pc 10 x 3-1/8" R4 All Purpose Screw 100 pc 10 x 2-1/2" R4 Stainless S Screw 100 pc 10 x 3-1/8" R4 Stainless S Screw |
| GRK's RSS Screw is made of special 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. The round head with built-in shield (washer type head) has no sharp edges like conventional lag screws. The added shoulder underneath the washer has the ability to center the screws in pre-drilled hardware like hinges and connector plates. Best of all, the RSS screw may be used as a lag screw replacement. |
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50 pc 10 x 2-3/4" RSS Structural Screw 100 pc 5/16 x 2-1/2" RSS Structural Screw 100 pc 5/16 x 3-1/8" RSS Structural Screw 100 pc 5/16 x 4" RSS Structural Screw 50 pc 5/16 x 6" RSS Structural Screw |
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GRK's Cabinet Screws were designed specifically for uses in cabinet construction and installation. Manufactured ina #8 gauge (4mm) diameter. These screws are thin enough to prevent most material from splitting while offering sufficient strength to provide a secure installation. The washer head design presses flush against any cabinet surface. Builders have also discovered new uses,GRK's Caninet Screws are good for vinly siding installation! |
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Stocked Items 100 pc 8 x 1-1/4" Cabinet Screw 100 pc 8 x 1-3/4" Cabinet Screw 100 pc 8 x 2-1/2" Cabinet Screw |
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GRK's Trim Head Screws are ideal for most fine carpentry applications, as well as window extesion jambs and more! These screws provide end users with the smallest screw head on the market. With sizes available from 1-1/2" (40mm) to 5" (125mm). GRK's Trim Head Screws exceptionally small head and its 'W-Cut' thread design prevent most material from splitting! |
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Stocked Items 100 pc 8 x 1-1/2" Trim Head 100 pc 8 x 2" Trim Head 100 pc 8 x 2-1/2" Trim Head 50 pc 9 x 4" Trim Head 50 pc 9 x 5" Trim Head |
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GRK's Composite Trim Head Screw offers all the features of the regular Trim Head Screw plus the addtional reverse threads for 'cleaning out' debree as the screw is installed. These additional reverse threads prohibit the 'mushroom' effect caused by regular screws. GRK's Composite Trim Head Screw is available in 'Climatec' coated and Stainless Steel. |
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Stocked Items 100 pc 8 x 2-1/2" Composite Trim Head 100 pc 9 x 2-1/2" Composite Trim Head 605 pc 8 x 2-1/2" Composite Trim Head 408 pc 9 x 2-1/2" Composite Trim Head 100 pc 8 x 2-1/2" Stainless Steel T.H. 100 pc 9 x 2-1/2" Stainless Steel T.H. |
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GRK's adjustable screw - the Top Star - reduces labor substantially of window and door frames, insulation and paneling, built- in wall units/cabinets. The Top Star Screw is perfectly suited to meet both professional and do-it-yourself needs. The Top Star allows fine jamb adjustments, in both directions, in seconds! |
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Stocked Items 6 pc 3/8 x 3-1/8" Top Star Screw 1 set Top Star Crown and Bit |
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