Construction Screw · #8 x 2-1/2 in - Yellow Zinc - Robertson Drive - 8X2.50WOSC
Wood-to-wood deck screw in #8 x 2-1/2 in size with yellow zinc coating and Robertson drive for reduced cam-out during installation. Commonly used for decking, rails, and general exterior wood fastening where a square-drive screw is preferred; yellow zinc is typically chosen for general outdoor use, but coating suitability should be confirmed for the specific lumber and exposure conditions.
What this product is for
This is a #8 x 2-1/2 in (approximately 64 mm) wood deck screw for fastening wood to wood in decking and general exterior carpentry. The yellow zinc finish and Robertson drive match common deck screw formats used for square-drive installation.
Use for
Use for deck boards, rails, fencing, and other wood members where a #8 screw and 2-1/2 in length are appropriate. A Robertson recess helps hold the screw on the bit and typically reduces cam-out during repetitive fastening.
Avoid for
Avoid using this screw where a project specifically requires structural screws, stainless steel fasteners, or a coating approved for highly corrosive environments. Do not treat yellow zinc as interchangeable with structural or marine-grade corrosion protection.
Best for
Best for contractors and installers looking for a common square-drive deck screw format for wood-to-wood fastening. The 2-1/2 in length is typically selected when more thread engagement is needed than shorter deck screws provide.
Installed in
Typically installed in residential decks, stairs, rails, fences, and outdoor wood repairs. Actual suitability depends on lumber type, exposure, and local code requirements.
Why this product exists
This screw format exists to provide a practical wood fastening option with easier bit engagement than slotted or Phillips styles. In trade use, Robertson drive is commonly chosen for faster handling and better driver control.
Compared with similar products
Compared with shorter #8 deck screws, a 2-1/2 in screw is commonly used where thicker material or deeper embedment is needed. Compared with exterior-coated or stainless deck screws, yellow zinc is generally a more basic corrosion-resistant finish and should be matched carefully to the application.
Specifications
- Product type: Deck screw
- Size: #8 x 2-1/2 in (approximately 64 mm)
- Drive style: Robertson (square drive)
- Finish: Yellow zinc
- Application: Wood-to-wood fastening
- Product class: Fastener
- Part number: 8X2.50WOSC
Typical buying guidance only: screw length selection depends on material thickness and required embedment. Actual performance depends on installation conditions, lumber species, treatment chemistry, exposure, and local electrical or building code where applicable.
- ApplicationWood-to-wood fastening
- Size#8 x 2-1/2 in (approximately 64 mm)
- FinishYellow zinc
- Drive StyleRobertson (square drive)
- Product ClassFastener
- BrandsWhite Label
- Stock in Elmira1
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