Sleeve Anchors vs. Wedge Anchors
Comparing 2 standards across 12 specifications. 12 key differences identified.
The Concrete Sleeve Anchor (Dynabolt) is a versatile medium-to-heavy duty masonry anchor comprising an internal threaded bolt, a flared cone mandrel tip, and a full-length tubular expanding metal sleeve. As the bolt or nut is tightened, the cone is pulled into the sleeve, expanding it along its full length to grip securely in solid concrete, solid brick, hollow block, and stone.
The Concrete Wedge Anchor (Through-Bolt / Expansion Stud Anchor / Trubolt) is a heavy-duty structural masonry fastener consisting of a solid threaded steel stud with a reverse-tapered conical mandrel and an independent stainless steel expansion clip collar. Driven into solid cured concrete, tightening the upper nut draws the mandrel up into the clip, locking the anchor permanently under thousands of pounds of structural load.
Specification Comparison Table
12 Parameters| Parameter / Spec | ||
|---|---|---|
|
Primary Applications
|
Door/window security grilles, garage door tracks, handrails, electrical conduit brackets | Automotive 2-post lifts, structural steel column baseplates, seismic heavy machinery hold-downs |
|
Standard Specifications
|
ASTM E488 / Federal Spec FF-S-325 Group II | — |
|
Sleeve Geometry
|
Full-length cylindrical zinc-plated steel sleeve with pre-cut expansion slits at bottom | — |
|
Head Style Variants
|
Hex Nut, Acorn Cap Nut, Flat Countersunk (Phillips/Torx), or Round Head | — |
|
Substrate Versatility
|
Solid concrete, clay brick, mortar-filled CMU, hollow concrete block, stone | — |
|
Drill Bit Size Match
|
Borehole diameter matches anchor outer sleeve diameter exactly | — |
|
Structural Certification
|
— | ICC-ES (International Code Council) cracked & uncracked concrete approval / ACI 318 |
|
Anchor Diameter Range
|
— | 1/4", 3/8", 1/2", 5/8", 3/4", 1" (or M6, M8, M10, M12, M16, M20, M24) |
|
Substrate Limitation
|
— | Solid uncracked/cracked cured concrete ONLY (Unsuitable for brick, hollow block, or mortar) |
|
Installation Style
|
— | 'Through-fixture' installation (Drill hole directly through the metal baseplate into concrete) |
|
Expansion Mechanism
|
— | Tapered conical stud mandrel expands stainless steel clip ring into concrete borehole |
|
Ultimate Tension Capacity (1/2" Anchor)
|
— | 4,000 to 6,500+ lbs (18 to 29 kN) in 4,000 psi concrete |