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https://www.mccoys.com/shop/p/5378468-052303-12/grk-fasteners-rss-series-95312-structural-screw-3-18-in-l-coarse-thread-washer-head-torx-drive-steel-zinc-plated
GRK Fasteners

RSS Series 95312 Structural Screw, 3-1/8 in L, Coarse Thread, Washer Head, Torx Drive, Steel, Zinc-Plated

Sku: 5378468-052303-12
$22.80
10 Available at SHIP TO STORE
Estimated Arrival On: 12/18/2025

RSS black structural screws are designed for outdoor and decking applications. The black coating provides a bold finish for structural connections.

  • Black coating matches decorative hardware for a cohesive looking deck build
  • Integrated washer head for maximum clamping force
  • Unique thread design draws two substrates together while its washer head allows zero gap joints
  • For use in heavy-duty structural applications and deck substructures as a replacement for lag screws and other remodeling applications

Length
3-1/8
Thread Type
Coarse
Head Type
Washer
Drive Type
Torx
Material
Steel
Finish
Zinc-Plated
Package Quantity
25
Thread Length
1.61
Drive Size
5/16
Grade
SAE
Color
Black
Applicable Materials
Wood
Shear Strength
123,592
Tensile Strength
178,051

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