FF-S-111 — Screw, Wood
FF-S-111 covers single and double-threaded wood screws with round, flat countersunk, and oval countersunk heads, driven by slotted or cross-recessed drives. Revision D dates to August 27, 1974; per Notice 1 (December 2000), the specification is now inactive for new design and retained for replacement purposes only.
At a Glance
Overview
FF-S-111 covers wood screws — externally threaded fasteners with a sharp gimlet point and coarse, deep thread designed to be driven directly into wood or similar material without a mating nut. The specification covered single and double-threaded configurations, with round, flat countersunk, and oval countersunk head styles, driven with either a slotted or cross-recessed drive.
Materials included carbon steel (grades 1010 through 1022, or 1108 through 1118, per various ASTM specifications), corrosion resistant steel (types 302, 303, 304, 305, 316, or 384), and copper-base alloys such as brass. Zinc coating, when specified, followed Type II Class 3 of QQ-P-416 or the equivalent MIL-C-81562 requirement — either electrodeposited per ASTM B633 or mechanically deposited.
As with several other Federal Specifications for basic wood and general hardware, FF-S-111 was marked inactive for new design by Notice 1 in December 2000, though it remains referenced for replacement and repair procurement on existing drawings and structures.
Material Options
| Material | Grades / Types |
|---|---|
| Carbon Steel | 1010–1022 or 1108–1118 (UNS designations, per ASTM A108/A545/A546/A547/A548/A549) |
| Corrosion Resistant Steel | Types 302, 303, 304, 305, 316, 384 |
| Copper-Base Alloy | Brass per QQ-B-626 / QQ-C-591 family |
FF-S-111 is inactive for new design. It remains referenced for replacement and repair procurement on existing drawings; for new designs, evaluate current commercial wood screw standards such as ANSI B18.6.1.
FF-S-111 — Frequently Asked Questions
What head styles does FF-S-111 cover?
Round head, flat countersunk head, and oval countersunk head, in both single and double-threaded configurations.
Is FF-S-111 still used?
It's inactive for new design as of the December 2000 notice, but remains referenced for replacement and repair procurement of existing hardware.
Need FF-S-111 Wood Screws for Repair Work?
Ananka Fasteners supplies FF-S-111 wood screws for legacy replacement procurement, with full material traceability.
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