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Steel Torx Flat Head Screws for Wood and Composite Wood
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The thin head reduces surface damage and leaves a smooth, near-invisible finish on decking and trim. These screws are also known as trim head screws. With a deep six-lobe opening, their Torx drive handles more torque than slotted, Phillips, and hex drives. The flat head creates a discreet look in countersunk holes and deters snags.
Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from the top of the head.
Green Corrosion-Resistant-Coated Steel—The dark-green coating resists rust at the level of stainless steel. All of these screws have passed a 1,500-hour salt spray test.
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Lg. | Dia. | Ht. | Drill Bit Size | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Pkg. Qty. | Pkg. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Green Corrosion-Resistant-Coated Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 9 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 2 1/2" | 0.343" | 0.125" | 5/32" | Narrow | 9 | Partially Threaded | Thread Cutting | 50 | 91520A325 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3" | 0.343" | 0.125" | 5/32" | Narrow | 9 | Partially Threaded | Thread Cutting | 25 | 91520A326 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3 1/2" | 0.354" | 0.125" | 5/32" | Narrow | 8 | Partially Threaded | Thread Cutting | 25 | 91520A327 | 00000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Steel Torx Flat Head Drilling Screws for Joining Wood to Sheet Metal
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These Torx screws join wood to sheet metal by drilling, tapping, and fastening in one go. Their self-drilling tip clears the way while their threads tap into the material. With a deep six-lobe opening, the Torx drive handles more torque than slotted, Phillips, and hex drives. The flat head deters snags.
Length is measured from the top of the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
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Lg. | Dia. | Ht. | Drill Point Size | Drill Tip Lg. | For Wood Thk. Range | For Metal Thk. Range | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Pkg. Qty. | Pkg. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Zinc-Plated Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
No. 10 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1" | 0.48" | 0.136" | No. 3 | 1/4" | 0.25" to 0.375" | 0.11" to 0.21" | Standard | 16 | Fully Threaded | Thread Forming | 50 | 90425A460 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1 1/4" | 0.48" | 0.136" | No. 3 | 1/4" | 0.375" to 0.5" | 0.11" to 0.21" | Standard | 16 | Fully Threaded | Thread Forming | 50 | 90425A461 | 00000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
