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Simpson Strong-Tie 0.59″ x 4″ SDHR Metal-To-Wood Combo-Head Screw – Black E-Coat, Qty. 25

Original price was: $47.99.Current price is: $38.39.


The Simpson Strong-Tie SDHR Combo Head screw is built for speed, strength, and versatility in fastening cold-formed steel (CFS) to wood. Designed for indoor applications,...



The Simpson Strong-Tie SDHR Combo Head screw is built for speed, strength, and versatility in fastening cold-formed steel (CFS) to wood. Designed for indoor applications, this self-drilling screw features a #3 drill point that quickly penetrates steel up to 16-gauge thick, making it a reliable choice for contractors working in light framing, mechanical fastening, or general construction jobs.

Its combo head design allows installation with either a Phillips or square drive, giving crews the flexibility to use tools they already trust. The sharp threads grip fast and hold strong in wood, while the black E-coat finish provides a clean appearance and low-profile contrast on dark surfaces like brackets, hangers, or interior framing.

Offered in multiple lengths and packed for bulk jobs or project-ready needs, the SDHR screw combines strength-rated performance with ease of use.

Key Features:

  • Drives Fast
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