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CONFAST HD Hammer Drive Concrete Anchor, 1/4" x 1-1/4" (Box of 100)
The CONFAST HD Hammer Drive Anchor is a 1/4" x 1-1/4" concrete anchor engineered for fast, secure fastening into concrete, block, and masonry substrates. Each box contains 100 anchors, providing a reliable bulk supply for commercial and residential anchoring projects. Manufactured in Taiwan, this hammer drive anchor is also available in additional sizes ranging from 3/16" x 7/8" up to 1/4" x 3" to suit a variety of installation depths and load requirements.
Key Features
- Anchor Size: 1/4" x 1-1/4" hammer drive anchor sized for standard concrete fastening applications.
- Additional Size Options: Also available in 3/16" x 7/8", 1/4" x 3/4", 1/4" x 1", 1/4" x 1-1/2", 1/4" x 2", 1/4" x 2-1/2", and 1/4" x 3" to match project depth and load requirements.
- Bulk Box Packaging: Sold in a box of 100 anchors for efficient bulk purchasing on commercial and residential jobs.
- Concrete Anchor Design: Purpose-built as a hammer drive anchor for secure fastening into concrete, block, and masonry substrates.
- Country of Origin: Manufactured in Taiwan for consistent quality control.
- Direct Value Pricing: Offered direct for competitive pricing on every box without sacrificing quality.
Technical Specifications
- Product Type: Concrete Anchor
- Country of Origin: Taiwan
- Box Quantity: 100
- Product Size: 3/16" x 7/8"
- Product Size: 1/4" x 3/4"
- Product Size: 1/4" x 1"
- Product Size: 1/4" x 1-1/2"
- Product Size: 1/4" x 2"
- Product Size: 1/4" x 2-1/2"
- Product Size: 1/4" x 3"
Typical Applications
- Commercial Construction Projects
- Concrete and Masonry Fastening
- Industrial and Warehouse Facilities
- Residential Renovation and Repair
- Electrical and Mechanical Contracting
- General Contracting and Building Maintenance
Why CONFAST HD?
CONFAST hammer drive anchors are manufactured to deliver dependable, secure holding power in concrete and masonry applications. With multiple sizes available and bulk box packaging, CONFAST provides contractors and builders a consistent, cost-effective anchoring solution for demanding job site conditions.
Specifications
- Box Qty: 100
- Head Type: Mushroom
Specifications by Size
| Size | Pull-Out (lbs.) | Shear (lbs.) | Bit Size | Max. Fixture Thickness | Min. Edge Distance | Min. Embedment | Min. Fixture Hole Ø (Hole Spotted) | Min. Fixture Hole Ø (In Place) | Min. Spacing | UPC |
|---|---|---|---|---|---|---|---|---|---|---|
| 3/16" x 7/8" | 214 | 311 | 3/16" | 1/8" | 15/16" | 3/4" | 1/4" | 1/4" | 1-7/8" | 820274000663 |
| 1/4" x 3/4" | 307 | 330 | 1/4" | 1/8" | 1-1/4" | 5/8" | 5/16" | 5/16" | 2-1/2" | 820274000656 |
| 1/4" x 1" | 405 | 450 | 1/4" | 1/4" | 1-1/4" | 3/4" | 5/16" | 5/16" | 2-1/2" | 820274000595 |
| 1/4" x 1-1/4" | 405 | 450 | 1/4" | 1/2" | 1-1/4" | 3/4" | 5/16" | 5/16" | 2-1/2" | 820274000618 |
| 1/4" x 1-1/2" | 405 | 450 | 1/4" | 3/4" | 1-1/4" | 3/4" | 5/16" | 5/16" | 2-1/2" | 820274000601 |
| 1/4" x 2" | 405 | 450 | 1/4" | 1-1/4" | 1-1/4" | 3/4" | 5/16" | 5/16" | 2-1/2" | 820274000625 |
| 1/4" x 2-1/2" | 405 | 450 | 1/4" | 1-3/4" | 1-1/4" | 3/4" | 5/16" | 5/16" | 2-1/2" | 820274000632 |
| 1/4" x 3" | 405 | 450 | 1/4" | 2-1/4" | 1-1/4" | 3/4" | 5/16" | 5/16" | 2-1/2" | 820274000649 |
Manufacturer Resources
Product Specs
- Product Type:
- Hammer Drive Anchor
- Product Brand:
- CONFAST
- Country of Origin:
- Taiwan
- Box Quantity:
- 100
- Department:
- Fasteners
- Product Group:
- Concrete Anchors
- Product Subgroup:
- Concrete Anchors
- Product Material:
- Zamac
- Location Rating:
- Dry
- Product Attribute:
- Male (threaded stud)
CONFAST HD31678 – Frequently Asked Questions
1) What sizes do CONFAST hammer drive anchors come in?
CONFAST HD hammer drive anchors run 3/16" x 7/8", then 1/4" diameter in 3/4", 1", 1-1/4", 1-1/2", 2", 2-1/2", and 3" lengths. Eight size choices total, all sold as a box of 100. Pick the length by how thick the fixture is plus the embedment you want in the concrete.
2) Can I use a hammer drive anchor in concrete block and brick, or only poured concrete?
The CONFAST HD is built for concrete, block, and masonry base material. In hollow block, set it in the solid web rather than the void, and in any of these the hole has to be drilled to full depth before the pin is driven.
3) What is a hammer drive anchor and when should I use one instead of a sleeve or wedge anchor?
A hammer drive anchor is a one-piece body with a pin you drive with a hammer to expand it in the hole. No wrench, no torque setting, no thread. It's the fast choice for light to medium fixings you don't plan to remove, like conduit straps, channel, furring, or nameplates. If the fixture has to come back off, or you need a heavier tension load, a wedge or sleeve anchor with a nut is the better call. CONFAST offers the HD in 3/16" and 1/4" diameters only, which tells you where it sits on the load scale.
4) What size hole do I drill for a 1/4 inch CONFAST hammer drive anchor?
Match the drill bit to the anchor diameter: a 1/4" carbide bit for the 1/4" anchors and a 3/16" bit for the 3/16" x 7/8". Drill the hole deeper than the anchor length so the pin has somewhere to go and the dust doesn't bottom it out. CONFAST supplies these in 3/16" and 1/4" diameters only.
5) Which length hammer drive anchor should I pick for attaching conduit strap to a concrete wall?
Add the thickness of what you're fastening to the embedment you want in the concrete. For thin items like a one-hole conduit strap, the 1/4" x 1" or 1/4" x 1-1/4" is usually the working size. Go to 1/4" x 2", 2-1/2", or 3" when you're shooting through furring, plywood, or a thicker bracket and still need real depth in the concrete. The 3/16" x 7/8" is the smallest of the eight and suits light signage and low-profile clips.
6) Can a hammer drive anchor be removed or reused later?
No. Once the pin on a CONFAST HD is driven home the body is expanded in the hole permanently. Removal means grinding or cutting the head flush and abandoning the body, or drilling it out. If the fixture needs to come off for service, use a threaded anchor with a nut instead.
7) Are these anchors suitable for drywall or wood without concrete behind them?
No. A hammer drive anchor needs solid base material, concrete, block, or masonry, for the expanded body to grip. There is nothing for it to bite in hollow drywall or wood framing, so use a toggle or a wood screw there instead.
How fast can I get the CONFAST HD31678 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the CONFAST HD31678 come with a warranty?
Absolutely. The CONFAST HD31678 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the CONFAST HD31678?
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installation tips, and troubleshooting. Contact Us
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