SKU: CSS-400

.275" x 4" Conquest Structural Screw - T-30 Star Drive, Pkg 50

.275" x 4" Conquest Structural Screw - T-30 Star Drive, Pkg 50!

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SKU: CSS-400

.275" x 4" Conquest Structural Screw - T-30 Star Drive, Pkg 50

$25.26
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Specifications

Diameter: 0.275"
Length: 4"
Thread Length: 2-3/4"
Head Diameter: 0.74"
Drive Type: T30 Star Drive
Head Type: Flat Head
Point Type: Type 17 Point
For Treated Lumber: No
Material: Carbon Steel
Finish: Plain
Manufacturer Name: Conquest Fasteners
Quantity: 50
Description

.275" x 4" Conquest Structural Screw - T-30 Star Drive, Pkg 50

Designed for demanding structural wood applications, the .275" x 4" Conquest Structural Screw provides strong holding power and dependable installation performance. The T-30 star drive ensures solid bit engagement under high torque conditions. Well-suited for heavy framing, ledger fastening, and multi-member wood assemblies.

Note: ICC-ES code listed for approved structural use.

.275" x 4" T-30 Star Drive Structural Wood Screw

With its .275" diameter and extended 4" length, this screw penetrates deeply into lumber while maintaining secure clamping strength across structural joints.

Key Features

  • 4" Length: Ideal for multi-layer wood connections.
  • .275" Heavy-Duty Diameter: Engineered for structural performance.
  • T-30 Drive System: Minimizes cam-out and improves control.
  • Aggressive Thread Pattern: Promotes fast starts in dense wood.

Common Applications

  • Ledger Attachments: Secures boards to structural framing.
  • Deck Beam Connections: Fastens load-bearing components.
  • Wood-to-Wood Structural Joints: Reinforces framing assemblies.
  • Outdoor Structures: Suitable for pergolas and heavy builds.
  • General Framing: Ideal for high-strength wood fastening.

Installation Tips

  • Use Proper Bit Size: T-30 star drive required.
  • Maintain Alignment: Keep screw straight during installation.
  • Stop at Flush Seating: Avoid excessive torque.
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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

Based on 6 reviews
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J
John Bailey

These are awesome screws for big rough cut lumber

H
Hayne Drake
Screws are flawless

I was shocked with the cost of shipping, but the 50 screws I ordered were exactly what I needed for my deck rebuild. Shipping was almost as much as the screws themselves. I could understand that for a larger order, but for 50 screws, I felt that was unnecessary. A few dollars would cover the real shipping cost for the small box of screws.

J
J.C.
very competent screws

These torx flathead screws appear to be of high quality. I have sunk about 200 so far and
not had a single break or torx strip. Some screws were driven so hard that the geared driver drill required a right-angle brace to keep control of it.