10 x 3-1/2 in. GRK Flat Head R4 Multi-Purpose, Climatek, Star, w/Nibs
10 x 3-1/2 in. GRK Flat Head R4 Multi-Purpose, Climatek, Star, w/Nibs
GRK’s R4™ screws have some of the most advanced technology around for faster screw driving with a whole lot less effort and no pilot holes required.
Pilot holes are only needed if the building-material manufacturer requires it. Always check with the manufacturer literature for installation recommendations.
FEATURES
- Patented nib design under the head acts like a saw blade with six self-contained cutting pockets enabling countersinking in even exotic hardwoods.
- Extremely aggressive threads enable screws to penetrate fibrous material like OSB.
- Screws 2 in. and longer have a four-threaded portion that enlarges the hole, reducing friction and increasing the drawing strength
- Screws can be used in all woods and plastic applications without shredding or cracking the surface.
- Screws can be used in all woods and plastic applications without shredding or cracking the surface. The 90° angle under the screw head fits perfectly into pre-countersunk holes for hardware brackets.
- Star Drive Recess
Stated lengths are soft conversions from metric lengths
| SIZE (#8, #10 ...) | #10 |
|---|---|
| LENGTH | 3-1/2 in. |
| MATERIAL | Corrosion Resistant Coated |
| RECESS TYPE | Star / Torx |
| HEAD | Flat |
| POINT TYPE | Self Drilling Wood |
| BRAND | GRK |
| RECESS SIZE | T-25 |
| RoHS Compliant? | No |
| SKU | 1034-R4 |
| Prop 65 |
|
WARNING: This product can expose you to chemicals including Zinc which is known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.
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