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R4™ multi purpose screws flat countersunk R4™ multi purpose screws
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Our R4™ multi purpose screws is a self-countersunk screw with saw-blade styled cutting teeth and six self-centered cutting pockets that functions similar to a circular saw blade. The screws transports the dust away from the edge of the screw hole while cutting a perfectly clean hole into even the most brittle materials without cracking any surface treatment. The design also further enhances versatility by allowing the fastener to be installed without countersinking in even the hardest of woods. The screw head closes the the hole off with precision leaving no damaged fibers around the head.

Sizes 2" and longer have a special CEE thread that enlarges the screw hole for the non-threaded portion of the fastener allowing the wood to to settle easily thus increasing the screw's drawing strength and reducing the friction on the screw shank that lowers the driving torque. The Zip-Tip™ is desgned for fast starts in any fibrous materials.

Applications for our multi purpose screw includes wood, particle board, plastic, sheet metal, cement fiberboard, composite decking, wood decking and melamine.   

The screws are Climatek™ coated and have been independently tested and approved for use in treated wood products. No pre-drilling is required except where building material limitations are specified. Stainless steel screws are recommended for tropical wood, cedar wood, pool, sauna and deck applications in areas with lage daily temperature variances.

Enter the exact quantity you require and we will do our best to accommodate you.

PART NO. NOMINAL SIZE METRIC SIZE MATERIAL FINISH ZIP-TIP FEATURE DRIVE BIT SIZE PRICE QTY REQ ACTION
GRKR4-3000 4 x 3/8" 3.0 mm x 10 mm hardened steel Climatek™ no 6 lobe (torx™) T-10 on application
GRKR4-3010 4 x 1/2" 3.0 mm x 12 mm hardened steel Climatek™ no 6 lobe (torx™) T-10 on application
GRKR4-3020 4 x 5/8" 3.0 mm x 16 mm hardened steel Climatek™ no 6 lobe (torx™) T-10 on application
GRKR4-3030 4 x 3/4" 3.0 mm x 20 mm hardened steel Climatek™ no 6 lobe (torx™) T-10 on application
GRKR4-3040 4 x 1" 3.0 mm x 25 mm hardened steel Climatek™ no 6 lobe (torx™) T-10 on application
GRKR4-3050 4 x 1-1/4" 3.0 mm x 30 mm hardened steel Climatek™ yes 6 lobe (torx™) T-10 on application
GRKR4-3060 6 x 1/2" 3.5 mm x 12 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3070 6 x 5/8" 3.5 mm x 16 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3080 6 x 3/4" 3.5 mm x 20 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3090 6 x 1" 3.5 mm x 25 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3100 6 x 1-1/4" 3.5 mm x 30 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3110 6 x 1-3/8" 3.5 mm x 35 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3120 6 x 1-1/2" 3.5 mm x 40 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3130 6 x 1-3/4" 3.5 mm x 45 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3140 6 x 2" 3.5 mm x 50 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3150 8 x 5/8" 4.0 mm x 16 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3160 8 x 3/4" 4.0 mm x 20 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3170 8 x 1" 4.0 mm x 25 mm hardened steel Climatek™ no 6 lobe (torx™) T-15 on application
GRKR4-3180 8 x 1-1/4" 4.0 mm x 30 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3190 8 x 1-3/8" 4.0 mm x 35 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3200 8 x 1-1/2" 4.0 mm x 40 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3210 8 x 1-3/4" 4.0 mm x 45 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3220 8 x 2" 4.0 mm x 50 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3230 8 x 2-1/2" 4.0 mm x 60 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3240 8 x 2-3/4" 4.0 mm x 70 mm hardened steel Climatek™ yes 6 lobe (torx™) T-15 on application
GRKR4-3250 9 x 3/4" 4.5 mm x 20 mm hardened steel Climatek™ no 6 lobe (torx™) T-25 on application
GRKR4-3260 9 x 1" 4.5 mm x 25 mm hardened steel Climatek™ no 6 lobe (torx™) T-25 on application
GRKR4-3270 9 x 1-1/4" 4.5 mm x 30 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3280 9 x 1-1/2" 4.5 mm x 40 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3290 9 x 1-3/4" 4.5 mm x 45 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3300 9 x 2" 4.5 mm x 50 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3310 9 x 2-1/2" 4.5 mm x 60 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3320 9 x 2-3/4 4.5 mm x 70 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3330 9 x 3-1/8 4.5 mm x 80 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3340 10 x 3/4" 5.0 mm x 20 mm hardened steel Climatek™ no 6 lobe (torx™) T-25 on application
GRKR4-3350 10 x 1" 5.0 mm x 25 mm hardened steel Climatek™ no 6 lobe (torx™) T-25 on application
GRKR4-3360 10 x 1-1/4" 5.0 mm x 30 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3370 10 x 1-1/2" 5.0 mm x 40 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3380 10 x 1-3/4" 5.0 mm x 45 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3390 10 x 2" 5.0 mm x 50 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3400 10 x 2-1/2" 5.0 mm x 60 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3410 10 x 2-3/4" 5.0 mm x 70 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3420 10 x 3-1/8" 5.0 mm x 80 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3430 10 x 3-1/2" 5.0 mm x 90 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3440 10 x 4" 5.0 mm x 100 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3450 10 x 4-3/4" 5.0 mm x 120 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3460 12/14 x 2" 6.0 mm x 50 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3470 12/14 x 2-1/2" 6.0 mm x 60 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3480 12/14 x 2-3/4" 6.0 mm x 70 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
GRKR4-3490 12/14 x 3-1/8" 6.0 mm x 80 mm hardened steel Climatek™ yes 6 lobe (torx™) T-25 on application
 
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