Stainless Steel Anchors
What are stainless steel anchors? Stainless steel anchors are corrosion-resistant fasteners that create a secure hold in concrete, masonry, and block where a screw or bolt alone will not grip. Made from 304 and 316 stainless, they resist rust in wet, coastal, and outdoor installations where plated anchors would corrode and lose holding strength.
Anchors, Stainless Steel
Stainless Steel Wedge Anchors
Corrosion-resistant stud-type expansion anchors in 304 and 316 stainless for high-strength holds in solid concrete, wet and coastal use.
Stainless Steel Sleeve Anchors
Corrosion-resistant expansion anchors in 304 stainless that work in concrete, brick, and block for light to medium-duty holds.
Stainless Steel Drop-In/Threaded Anchors
Corrosion-resistant internally threaded anchors in 304 and 316 stainless, set flush in concrete to accept a bolt or threaded rod.
Stainless Steel Hammer Drive Anchors
Corrosion-resistant 18-8 stainless hammer-set anchors for fast, permanent fastening of fixtures to concrete and masonry.
When to use stainless steel anchors instead of plated
Anchors carry load long after they are installed, so corrosion at the anchor point is a structural risk, not just a cosmetic one. Stainless is the right choice for anything exposed to moisture or weather, such as dock ledgers, coastal railings, pool decks, and exterior fixtures. For coastal or saltwater exposure, choose 316 over 304 for the best resistance to pitting.
Why choose stainless steel anchors
- Corrosion resistance: holds its strength in wet and coastal conditions where plated anchors rust.
- Long service life: resistance is in the metal, so there is no coating to chip during installation.
- Clean appearance: bright finish suited to visible exterior mounting.
- Anchor styles: wedge, sleeve, and drop-in for solid concrete and masonry.
Types of stainless steel anchors
- Wedge anchors: stud-type expansion anchors for solid concrete with very high holding values (304 and 316).
- Sleeve anchors: versatile anchors for concrete, brick, and block in light to medium-duty work (304).
- Drop-in / threaded anchors: flush internally threaded anchors set with a tool, common for overhead fixtures (304 and 316).
- Hammer drive anchors: quick-set anchors driven with a hammer for light-duty masonry mounting (18-8).
Common applications for stainless steel anchors
- Docks, piers, and coastal construction (use 316)
- Pool decks, patios, and exterior railings
- Overhead fixtures, pipe, and conduit in damp areas
- Outdoor signage, fixtures, and equipment mounting
For masonry screws that need no anchor, see stainless concrete screws, and browse every anchor type and material on the main anchors category.
Stainless Steel Anchors FAQ
What grades do stainless anchors come in?
Wedge and drop-in anchors come in 304 and 316 stainless, and sleeve anchors in 304. Use 316 for coastal and saltwater exposure.
Are stainless steel anchors strong enough for concrete?
Yes. Stainless wedge and sleeve anchors provide strong holding values in solid concrete. Follow the maker's hole size and embedment depth for full strength.
Should I use 304 or 316 anchors outdoors?
304 handles most general outdoor and freshwater use. For coastal, saltwater, or road-salt exposure, choose 316 for the best resistance to pitting.