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CONFAST Zinc-Plated Wedge Anchor for Concrete
The CONFAST Zinc-Plated Wedge Anchor is a concrete anchor engineered to deliver a secure, dependable mechanical connection point in solid concrete for fixtures, equipment, framing, and other structural hardware. This wedge anchor features a zinc-plated finish that helps protect against corrosion during storage and use, and it is manufactured in the US to help ensure consistent quality from anchor to anchor. CONFAST packages this anchor for sale by the box, with the exact box quantity shown for each individual size, making it simple for contractors, tradespeople, and DIY builders to order the right amount of concrete anchors for the scope of their project. Whether you're securing a ledger board, mounting a base plate, or anchoring equipment to a concrete floor or wall, this wedge anchor is designed to be a straightforward, reliable fastening solution on the jobsite. Every anchor in this line is made in the USA.
Key Features
- Concrete Anchor: Purpose-built wedge anchor engineered to create a secure, load-bearing mechanical connection directly into solid concrete substrates, such as floors, walls, and foundations.
- Zinc-Plated Finish: The zinc-plated coating is applied to help resist surface corrosion, supporting more consistent long-term performance in typical construction and jobsite environments.
- Sold by the Box: CONFAST packages this wedge anchor for bulk purchasing by the box, with the specific box quantity shown for each individual anchor size so you can order exactly what the job requires.
- Domestic Manufacturing: Made in the US, offering contractors and builders a domestically produced concrete anchor option with consistent manufacturing quality.
- Versatile Fastening: Suited for a wide range of concrete anchoring tasks where a dependable mechanical hold is needed for fixtures, brackets, and structural components.
Technical Specifications
- Product Type: Concrete Anchor
- Country of Origin: US
Typical Applications
- Anchoring Fixtures and Equipment to Concrete
- Structural Connections in Concrete Slabs and Walls
- Mounting Base Plates and Brackets
- Ledger Board and Framing Attachment to Concrete
- General Construction and Renovation Projects
Why CONFAST?
CONFAST wedge anchors are built for contractors, tradespeople, and builders who need a dependable concrete fastening solution they can count on for everyday jobsite use. The zinc-plated finish is intended to help the anchor resist corrosion, while domestic US manufacturing supports consistent quality control from batch to batch. Because CONFAST sells this wedge anchor by the box with quantities matched to each individual anchor size, it's easy to keep the right amount of concrete anchors on hand for framing, mounting, and structural connection work on any concrete anchoring project.
Specifications by Size
| Size | Pull-Out (lbs.) | Shear (lbs.) | Bit Size | Box Qty | Length ID Code | Max. Fixture Thickness | Max. Torque | Min. Edge Distance | Min. Embedment | Min. Fixture Hole Ø (Hole Spotted) | Min. Fixture Hole Ø (In Place) | Min. Spacing | Thread Length | Thread Type | Wrench Size | UPC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/4" x 1-3/4" (Box of 100) | 877 | 1082 | 1/4" | 100 | A | 3/8" | 5 - 10 ft./lbs. | 1-1/4" | 1-1/8" | 1/4" | 5/16" | 2-1/2" | 3/4" | 1/4" - 20 | 7/16" | 820274002162 |
| 1/4" x 2-1/4" (Box of 100) | 877 | 1082 | 1/4" | 100 | B | 7/8" | 5 - 10 ft./lbs. | 1-1/4" | 1-1/8" | 1/4" | 5/16" | 2-1/2" | 1-1/4" | 1/4" - 20 | 7/16" | 820274002179 |
| 1/4" x 3-1/4" (Box of 100) | 877 | 1082 | 1/4" | 100 | D | 1-7/8" | 5 - 10 ft./lbs. | 1-1/4" | 1-1/8" | 1/4" | 5/16" | 2-1/2" | 2-3/4" | 1/4" - 20 | 7/16" | 820274002193 |
| 3/8" x 2-1/4" (Box of 50) | 1223 | 3238 | 3/8" | 50 | B | 3/8" | 25 - 30 ft./lbs. | 1-7/8" | 1-1/2" | 3/8" | 1/2" | 3-3/4" | 1" | 3/8" - 16 | 9/16" | 820274002308 |
| 3/8" x 2-3/4" (Box of 50) | 1223 | 3238 | 3/8" | 50 | C | 7/8" | 25 - 30 ft./lbs. | 1-7/8" | 1-1/2" | 3/8" | 1/2" | 3-3/4" | 1-1/2" | 3/8" - 16 | 9/16" | 820274002315 |
| 3/8" x 3" (Box of 50) | 1223 | 3238 | 3/8" | 50 | D | 1-1/8" | 25 - 30 ft./lbs. | 1-7/8" | 1-1/2" | 3/8" | 1/2" | 3-3/4" | 1-3/4" | 3/8" - 16 | 9/16" | 820274002322 |
| 3/8" x 3-3/4" (Box of 50) | 1223 | 3238 | 3/8" | 50 | E | 1-7/8" | 25 - 30 ft./lbs. | 1-7/8" | 1-1/2" | 3/8" | 1/2" | 3-3/4" | 2-1/2" | 3/8" - 16 | 9/16" | 820274002346 |
| 3/8" x 5" (Box of 50) | 1223 | 3238 | 3/8" | 50 | H | 3-1/8" | 25 - 30 ft./lbs. | 1-7/8" | 1-1/2" | 3/8" | 1/2" | 3-3/4" | 3-3/4" | 3/8" - 16 | 9/16" | 820274002353 |
| 1/2" x 2-3/4" (Box of 25) | 2999 | 5564 | 1/2" | 25 | C | 1/8" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 1-1/4" | 1/2" - 13 | 3/4" | 820274002100 |
| 1/2" x 3-3/4" (Box of 25) | 2999 | 5564 | 1/2" | 25 | D | 1" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 2-1/4" | 1/2" - 13 | 3/4" | 820274002117 |
| 1/2" x 4-1/4" (Box of 25) | 2999 | 5564 | 1/2" | 25 | F | 1-1/2" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 2-3/4" | 1/2" - 13 | 3/4" | 820274002124 |
| 1/2" x 5-1/2" (Box of 25) | 2999 | 5564 | 1/2" | 25 | I | 2-3/4" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 4" | 1/2" - 13 | 3/4" | 820274002131 |
| 1/2" x 7" (Box of 25) | 2999 | 5564 | 1/2" | 25 | L | — | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 4" | 1/2" - 13 | 3/4" | 820274002148 |
| 1/2" x 8-1/2" (Box of 25) | 2999 | 5564 | 1/2" | 25 | O | 5-3/4" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 4" | 1/2" - 13 | 3/4" | 820274002155 |
| 1/2" x 10" (Box of 25) | 2999 | 5564 | 1/2" | 25 | R | 7-1/4" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 4" | 1/2" - 13 | 3/4" | 820274002087 |
| 1/2" x 12" (Box of 25) | 2999 | 5564 | 1/2" | 25 | T | 9-1/4" | 50 - 60 ft./lbs. | 2-1/2" | 2-1/4" | 1/2" | 5/8" | 5" | 4" | 1/2" - 13 | 3/4" | 820274002094 |
| 5/8" x 3-1/2" (Box of 25) | 3749 | 6198 | 5/8" | 25 | E | 1/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 1-3/4" | — | 15/16" | 820274002407 |
| 5/8" x 4-1/2" (Box of 25) | 3749 | 6198 | 5/8" | 25 | G | 1-1/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 2-3/4" | — | 15/16" | 820274002414 |
| 5/8" x 5" (Box of 20) | 3749 | 6198 | 5/8" | 20 | H | — | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 3" | — | 15/16" | 820274002421 |
| 5/8" x 6" (Box of 20) | 3749 | 6198 | 5/8" | 20 | J | 2-5/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 4" | — | 15/16" | 820274002438 |
| 5/8" x 7" (Box of 20) | 3749 | 6198 | 5/8" | 20 | L | 3-5/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 4" | — | 15/16" | 820274002445 |
| 5/8" x 8-1/2" (Box of 20) | 3749 | 6198 | 5/8" | 20 | O | 5-1/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 4" | — | 15/16" | 820274002452 |
| 5/8" x 10" (Box of 10) | 3749 | 6198 | 5/8" | 10 | R | 6-5/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 4" | — | 15/16" | 820274002384 |
| 5/8" x 12" (Box of 10) | 3749 | 6198 | 5/8" | 10 | T | 8-5/8" | 75 - 90 ft./lbs. | 3-1/8" | 2-3/4" | 5/8" | 7/8" | — | 4" | — | 15/16" | 820274002391 |
| 3/4" x 4-1/4" (Box of 20) | 4978 | 9378 | 3/4" | 20 | F | 1/4" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 2" | 3/4" - 10 | 1-1/8" | 820274002247 |
| 3/4" x 4-3/4" (Box of 20) | 4978 | 9378 | 3/4" | 20 | G | 3/4" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 2-1/2" | 3/4" - 10 | 1-1/8" | 820274002254 |
| 3/4" x 5-1/2" (Box of 20) | 4978 | 9378 | 3/4" | 20 | I | 1-1/2" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 3-1/4" | 3/4" - 10 | 1-1/8" | 820274002261 |
| 3/4" x 6-1/4" (Box of 20) | 4978 | 9378 | 3/4" | 20 | J | 2-1/4" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 4" | 3/4" - 10 | 1-1/8" | 820274002278 |
| 3/4" x 7" (Box of 10) | 4978 | 9378 | 3/4" | 10 | L | 3" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 4" | 3/4" - 10 | 1-1/8" | 820274002285 |
| 3/4" x 8-1/2" (Box of 10) | 4978 | 9378 | 3/4" | 10 | O | 4-1/2" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 4" | 3/4" - 10 | 1-1/8" | 820274002292 |
| 3/4" x 10" (Box of 10) | 4978 | 9378 | 3/4" | 10 | R | 6" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 4" | 3/4" - 10 | 1-1/8" | 820274002223 |
| 3/4" x 12" (Box of 10) | 4978 | 9378 | 3/4" | 10 | T | 8" | 150 - 175 ft./lbs. | 3-3/4" | 3-1/4" | 3/4" | 1" | 7-1/2" | 4" | 3/4" - 10 | 1-1/8" | 820274002230 |
| 1" x 6" (Box of 5) | 7329 | 17712 | 1" | 5 | J | 1/2" | 250 - 300 ft./lbs. | 5" | 4-1/2" | 1" | 1-1/4" | 10" | 3" | 1" - 8 | 1-1/2" | 820274002209 |
| 1" x 9" (Box of 5) | 4397 | 10627 | 1" | 5 | P | 3-1/2" | 250 - 300 ft./lbs. | 5" | 4-1/2" | 1" | 1-1/4" | 10" | 4" | 1" - 8 | 1-1/2" | 820274002216 |
| 1" x 12" (Box of 5) | 7329 | 17712 | 1" | 5 | T | 6-1/2" | 250 - 300 ft./lbs. | 5" | 4-1/2" | 1" | 1-1/4" | 10" | 4" | 1" - 8 | 1-1/2" | 820274002056 |
| 1-1/4" x 9" (Box of 5) | 13162 | 24206 | 1-1/4" | 5 | P | 2-1/4" | 400 - 450 ft./lbs. | 6-1/4" | 5-1/2" | 1-1/4" | 1-1/2" | 12-1/2" | 4" | 1-1/4" - 7 | 1-7/8" | 820274002070 |
| 1-1/4" x 12" (Box of 4) | 13162 | 24206 | 1-1/4" | 5 | T | 5-1/4" | 400 - 450 ft./lbs. | 6-1/4" | 5-1/2" | 1-1/4" | 1-1/2" | 12-1/2" | 4" | 1-1/4" - 7 | 1-7/8" | 820274002063 |
Manufacturer Resources
Product Specs
- Product Brand:
- CONFAST
- Product Type:
- Concrete Anchor
- Country Of Origin:
- United States
- Department:
- Fasteners
- Product Group:
- Concrete Anchors
- Product Subgroup:
- Concrete Anchors
- Product Material:
- Zinc Plated
- Location Rating:
- Dry
- Base Material:
- Concrete only
- Product Attribute:
- Male (threaded stud)
CONFAST WA38214A – Frequently Asked Questions
1) What size drill bit do I use for a CONFAST wedge anchor?
With a wedge anchor the bit size matches the anchor diameter, and CONFAST lists it that way: a 1/4 inch anchor takes a 1/4 inch bit, 3/8 takes 3/8, 1/2 takes 1/2, 5/8 takes 5/8, 3/4 takes 3/4, and the 1 inch and 1-1/4 inch anchors take 1 inch and 1-1/4 inch bits. Drill with a carbide bit in concrete only.
2) Can I use these wedge anchors in block, brick or mortar?
No. CONFAST rates these wedge anchors for concrete only, so hollow or grouted block, brick and mortar joints are out. In those substrates use a sleeve anchor or a screw anchor rated for masonry instead.
3) How long an anchor do I need for a 1/2 inch thick base plate on a concrete slab?
Add your fixture thickness to the minimum embedment and leave room for the nut and washer. For 1/2 inch diameter CONFAST anchors the minimum embedment is 2-1/4 inches, and the size chart gives the max fixture thickness each length supports: the 1/2 x 2-3/4 handles 1/8 inch of fixture, 1/2 x 3-3/4 handles 1 inch, 1/2 x 4-1/4 handles 1-1/2 inches. So for a 1/2 inch plate the 1/2 x 3-3/4 is the working choice.
4) How close to the edge of a concrete slab can I set a 1/2 inch wedge anchor?
Minimum edge distance on the 1/2 inch CONFAST anchor is 2-1/2 inches, with 5 inch minimum spacing between anchors. Other diameters: 1-1/4 inch edge distance on 1/4 inch anchors, 1-7/8 inch on 3/8, 3-1/8 inch on 5/8, 3-3/4 inch on 3/4, 5 inch on 1 inch, and 6-1/4 inch on 1-1/4 inch. Set closer than that and you risk spalling the edge as the wedge expands.
5) How much torque should I put on a CONFAST wedge anchor when tightening the nut?
Torque by diameter: 5 to 10 ft-lbs on 1/4 inch, 25 to 30 on 3/8, 50 to 60 on 1/2, 75 to 90 on 5/8, 150 to 175 on 3/4, 250 to 300 on 1 inch, and 400 to 450 on 1-1/4 inch. Overtorquing can strip the cone out of the hole, so a torque wrench is worth using on the larger diameters.
6) Can I drill the hole through the fixture already in place, or does the fixture have to come off?
Either way works, but the hole in the fixture has to be bigger if you drill through it in place, because the anchor's expansion clip needs clearance. On a 1/2 inch anchor the fixture hole needs 1/2 inch if you spot the hole and remove the fixture, or 5/8 inch if you set the anchor through the fixture in place. Same pattern across sizes: 1/4 versus 5/16 on a 1/4 inch anchor, 3/8 versus 1/2 on a 3/8, 5/8 versus 7/8 on a 5/8, 3/4 versus 1 inch on a 3/4, and 1 inch versus 1-1/4 on a 1 inch anchor.
7) Are zinc-plated wedge anchors OK outdoors or in a wet environment?
CONFAST rates this zinc-plated anchor for dry locations. The zinc plating resists surface corrosion during storage and normal jobsite use, but for exterior, damp or coastal work you want a stainless or hot-dip galvanized wedge anchor instead.
8) What wrench or socket size fits the nut on these concrete anchors?
Nut sizes run 7/16 inch on the 1/4 inch anchor, 9/16 on 3/8, 3/4 on 1/2, 15/16 on 5/8, 1-1/8 on 3/4, 1-1/2 on 1 inch, and 1-7/8 on 1-1/4 inch. Worth checking before you head to the roof with only a 1/2 inch drive set.
9) What thread size are CONFAST wedge anchors so I can match nuts and threaded fittings?
They are UNC coarse threaded studs: 1/4-20, 3/8-16, 1/2-13, 3/4-10, 1-8, and 1-1/4-7. The projecting end is a male threaded stud, so any standard coarse nut, washer or threaded connector in that size will thread on.
10) What pull-out and shear values do CONFAST wedge anchors carry?
Published ultimate values by diameter: 1/4 inch at 877 lbs pull-out and 1082 lbs shear, 3/8 inch at 1223 and 3238, 1/2 inch at 2999 and 5564, 5/8 inch at 3749 and 6198, 3/4 inch at 4978 and 9378, 1 inch at 7329 and 17712, and 1-1/4 inch at 13162 and 24206. These are test values, not allowable design loads, so apply your own safety factor for a structural connection.
11) How many wedge anchors come in a box, and does it change by size?
Box quantity drops as the anchor gets bigger: 100 per box in 1/4 inch, 50 in 3/8 inch, 25 in 1/2 inch, 25 or 20 or 10 across the 5/8 inch lengths, 20 or 10 in 3/4 inch, 5 in the 1 inch sizes, and 5 or 4 in 1-1/4 inch. The quantity is shown with each size, for example 1/2 inch x 3-3/4 inch is a box of 25 and 3/4 inch x 12 inch is a box of 10.
12) What is the shortest 1/4 inch wedge anchor that will still hold in concrete?
1/4 inch CONFAST anchors need 1-1/8 inches of embedment, and the shortest length offered is 1/4 x 1-3/4 inch, which leaves 3/8 inch for the fixture. If your bracket is thicker than that, step up to 1/4 x 2-1/4 inch (7/8 inch fixture) or 1/4 x 3-1/4 inch (1-7/8 inch fixture).
13) Are CONFAST wedge anchors made in the USA for a Buy American job?
Country of origin on this line is the US. That is the fact we hold on record; for a federally funded project your submittal will still need the manufacturer's own documentation.
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Does the CONFAST WA38214A come with a warranty?
Absolutely. The CONFAST WA38214A is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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