#14 or 1/4" Diameter Screws

Welcome to the “14-Diameter Screws” collection at Old West Iron. This group is organized by shank (or major-thread) diameter — specifically screws sized #14 — rather than by head size or style. For reference, a #14 screw has a thread (outer) diameter of about 0.242 inches (≈ ¼ inch, ~6.35 mm). 

These #14 screws are heavy-duty fasteners, built for demanding tasks — ideal for structural woodwork, decking, framing, heavy furniture, hanging solid-core doors, or any application where strong, reliable fastening is critical. Given their larger diameter, they offer much greater holding power and durability than lighter-gauge screws.

FAQ

Q: What does “#14” mean on a screw?
A: “#14” is the screw’s gauge size — referring to the diameter of the screw’s threads (major diameter), not the head size or style. 

Q: Why group screws by shank diameter instead of head size?
A: Because the shank (or major-thread) diameter determines how much load the screw can carry, how strong the hold will be, and what size pilot-hole may be required. Head size or style affects only how the head sits or appears, not the structural strength. 

Q: What kinds of projects are #14 screws suited for?
A: #14 screws are best for heavy-duty construction: structural framing, heavy furniture, exterior work like decking, securing solid-core doors, or anywhere that calls for maximum holding strength and durability. 

Q: Will screws under the #14 grouping have different head types?
A: Yes. Because these are grouped by diameter only, you may see a variety of head styles — flat, round, decorative, etc. Head style affects appearance and how the screw sits, but not its gauge or strength.

Q: Do #14 screws require pre-drilling pilot holes?
A: For many wood projects, yes — pre-drilling pilot holes sized correctly for the screw’s diameter helps prevent splitting and ensures stronger, more reliable joins, especially when working with dense or hardwoods.