Stainless Steel Screws & Bolts

What are stainless steel screws and bolts? Stainless steel screws and bolts are corrosion-resistant threaded fasteners for wood, metal, masonry, and machine assembly. Made from 18-8, 304, or 316 stainless, they resist rust in wet, humid, coastal, and outdoor conditions where zinc-plated fasteners would corrode and stain.

Screws & Bolts, Stainless Steel

Stainless Steel Carriage Bolts

Corrosion-resistant round-head bolts in stainless with a square neck that grips wood, for decks, docks, and outdoor construction.

Stainless Steel Concrete Screws

Corrosion-resistant 410 stainless masonry screws that cut their own threads in concrete, brick, and block for a removable, anchor-free hold.

Stainless Steel Deck Screws

Corrosion-resistant wood screws in stainless with a self-countersinking head, built for decking, docks, and treated lumber.

Stainless Steel Wood Screws

Corrosion-resistant 18-8 stainless wood screws with a tapered point, for trim, carpentry, and tannin-rich woods like cedar and oak.

Stainless Steel Hex Head Bolts

Corrosion-resistant six-sided bolts in stainless for use with a nut or tapped hole in machinery, structural, and outdoor assembly.

Stainless Steel Hex Lag Screws

Corrosion-resistant heavy-duty wood screws in stainless with a hex head and coarse threads, for decks, docks, and structural wood connections.

Stainless Steel Hanger Bolts

Stainless Steel Machine Screws

Corrosion-resistant machine-threaded screws in stainless for use with a nut or tapped hole in electronics, machinery, and metal work.

Stainless Steel Sidewalk Bolts

18-8 Stainless Steel

Stainless Steel Sheet Metal Screws

Corrosion-resistant fully threaded screws in stainless with sharp threads that bite sheet metal, plastic, and fiberglass in wet and outdoor use.

Stainless Steel Self Drillers

Corrosion-resistant stainless self drilling screws in hardened 410 and premium Ultra Stainless that bore their own hole and thread in one pass.

Stainless Steel Set Screws

Headless machine-threaded screws driven with an internal wrench, used to lock a collar, gear, or knob against a shaft or in a tapped hole.

Stainless Steel Socket Cap Screws

Corrosion-resistant stainless machine screws with a cylindrical head and internal hex drive for high torque in machinery and tooling.

Stainless Steel Roofing Screws

Stainless Steel Shoulder Bolts

Bolts with a smooth, precise unthreaded shoulder between the head and threads, used as a shaft, pivot, or bearing surface for rotating parts.

18-8 Stainless Steel

How to pick the right stainless screw or bolt

Start with the job, then the grade. Match the fastener type to the material you are joining, wood screws and lag screws for wood, machine screws and hex bolts for tapped holes and nuts, concrete screws for masonry, and self-drilling screws for metal. Then choose the grade for the environment, with 18-8 or 304 for general indoor and outdoor use and 316 for coastal and saltwater exposure. Remember stainless is softer than hardened carbon steel, so for high-strength jobs size up or verify the grade rating.

Why choose stainless steel screws and bolts

Corrosion resistance: resists rust in wet, coastal, and outdoor use.
No coating to wear: resistance is in the metal, not a plating that chips.
Clean appearance: bright finish for visible hardware.
Wide selection: bolts, machine screws, wood screws, and more in one grade family.

Common applications for stainless screws and bolts

Decks, docks, fences, and outdoor structures
Marine and coastal builds (use 316)
Machinery, equipment, and tapped-hole assembly
Food-grade and wash-down environments

Browse by type across every material on the main hex head bolts, machine screws, and socket head cap screws categories, or pair these with matching stainless nuts and washers.