Industrial Fastener · Anchors Series
Wedge Anchor
A wedge anchor (sometimes called a through-bolt or expansion stud anchor) is a heavy-duty concrete anchor consisting of a threaded stud, a small expanding wedge clip near the embedded end, a nut, and a washer. As the nut is tightened, the cone at the bottom pulls upward, expanding the clip...
Product Overview
Wedge Anchor sourcing essentials
A wedge anchor (sometimes called a through-bolt or expansion stud anchor) is a heavy-duty concrete anchor consisting of a threaded stud, a small expanding wedge clip near the embedded end, a nut, and a washer. As the nut is tightened, the cone at the bottom pulls upward, expanding the clip against the hole walls and creating high pull-out resistance.
Project or drawing specification
Carbon steel, Stainless 304/316
A wedge anchor (sometimes called a through-bolt or expansion stud anchor) is a heavy-duty concrete anchor consisting of a threaded stud, a small...
Inspection records, lot labels, certificate options, and destination-ready packing.
Technical Data
Specification range
Final dimensions, mechanical properties, finish, and packing are confirmed against the RFQ and applicable standard.
| Diameter | M6 – M24 (1/4" – 1") |
|---|---|
| Length | Multiple lengths per diameter — match concrete + fixture thickness + nut + washer |
| Material | Carbon steel, Stainless 304/316 |
| Surface Finish | Zinc plated, HDG, Mechanical galvanized, Stainless |
| Substrate | Cracked and uncracked concrete (per anchor design) |
| Approvals | Standard production typically not ETA-approved; ETA-approved variants available on request |
Common surface finishes
Select an option to review its sourcing note. Exact coating system, thickness, and corrosion requirement are confirmed with the order.
Quality Control
Checked before consolidation and export
Each order is matched to the specified standard and verified at practical control points before shipment.
RFQ confirmation
Standard, size, grade, pitch, finish, certificates, packing, and destination are locked before production.
Lot verification
Critical dimensions, thread fit, markings, finish appearance, and packing labels are sampled and recorded.
Shipment approval
Photos and required reports are organized before consolidated loading and export documentation.
Buyer Questions
Frequently asked questions
How is a wedge anchor installed?
Drill a hole of the specified diameter and depth. Clean the hole (very important — dust on the walls reduces holding strength). Insert the anchor with the nut and washer threaded on. Hammer flush. Tighten the nut to the specified installation torque — this draws the cone upward, expanding the wedge clip.
Can wedge anchors be used in hollow block?
No. Wedge anchors require solid concrete to work properly. In hollow block, the wedge has nothing to bear against. Use a sleeve anchor or chemical anchor in hollow block.
Ready to quote Wedge Anchor?
Send the standard, size, grade, finish, quantity, packing requirement, and destination. Availability and lead time are confirmed with the inquiry.