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CONFAST SDR Split Drive Round Concrete Anchor, 1/4" x 1-1/4" (Box of 100)
The CONFAST SDR Split Drive Round Concrete Anchor is a professional-grade fastening solution engineered for reliable, long-term anchoring into concrete substrates. Constructed from zinc plated steel and sized at 1/4" x 1-1/4", this split drive anchor is designed to provide a durable, corrosion-resistant hold for a wide range of commercial and industrial fastening needs. Each unit is sold in a box of 100, giving contractors, builders, and maintenance teams a convenient bulk supply of concrete anchors that are ready to use directly out of the box. Manufactured to professional-grade standards, the CONFAST SDR anchor is built to perform consistently across demanding jobsite conditions where dependable concrete fastening is required.
Key Features
- Anchor Size: Precision-sized at 1/4" x 1-1/4" for accurate, consistent fit in standard concrete anchoring applications.
- Zinc Plated Construction: Zinc plated steel body resists corrosion and helps maintain holding strength in concrete and masonry over time.
- Split Drive Design: The split drive style expands as it is driven into a pre-drilled hole, creating a secure, vibration-resistant mechanical hold.
- Round Anchor Profile: Round anchor design supports straightforward installation into standard round pre-drilled holes in concrete surfaces.
- Dedicated Concrete Anchor: Purpose-built as a concrete anchor for fastening fixtures, brackets, conduit, and hardware directly into concrete.
- Bulk Box Quantity: Packaged in boxes of 100 anchors, keeping crews stocked for ongoing commercial and industrial projects without frequent reordering.
- Professional-Grade Manufacturing: Produced to professional-grade standards for consistent sizing, reliable performance, and dependable field results.
- Jobsite-Ready Packaging: Box packaging keeps anchors organized and protected for easy transport and storage between job locations.
Technical Specifications
- Product Type: Concrete Anchor
- Country of Origin: China
- Box Quantity: 100
Typical Applications
- Commercial Construction Projects
- Concrete and Masonry Installations
- Industrial and Warehouse Facilities
- Structural Fastening and Bracket Mounting
- Renovation and Retrofit Projects
- Contractor and Builder Supply Inventory
- Facility Maintenance and Repair Work
Why CONFAST SDR?
CONFAST split drive anchors are manufactured from zinc plated steel to deliver dependable corrosion resistance and consistent, professional-grade performance for concrete fastening applications. The split drive design creates a secure mechanical hold once driven into a pre-drilled hole, making it a practical choice for fixtures, brackets, and hardware that need to be anchored directly into concrete. Packaged in convenient boxes of 100, the CONFAST SDR anchor gives contractors, builders, and maintenance professionals a reliable, ready-to-use supply for demanding jobsite conditions.
Specifications
- Pull-Out (lbs.): 990
- Shear (lbs.): 1248
- Bit Size: 1/4"
- Box Qty: 100
- Head Type: Round Head
- Min. Edge Distance: 1-1/4"
- Min. Embedment: 1-1/8"
- Min. Fixture Hole Ø (In Place): 3/8"
- Min. Spacing: 2-1/2"
Specifications by Size
| Size | Max. Fixture Thickness | UPC |
|---|---|---|
| 1/4" x 1-1/4" | 1/8" | 820274001882 |
| 1/4" x 1-1/2" | 3/8" | 820274001875 |
| 1/4" x 2" | 7/8" | 820274001899 |
| 1/4" x 2-1/2" | 1-3/8" | 820274001905 |
Manufacturer Resources
Product Specs
- Product Type:
- Split Drive Anchor
- Product Brand:
- CONFAST
- Product Material:
- Zinc Plated
- Box Quantity:
- 100
- Department:
- Fasteners
- Product Group:
- Concrete Anchors
- Product Subgroup:
- Concrete Anchors
- Location Rating:
- Dry
- Base Material:
- Concrete
- Product Attribute:
- Male (threaded stud)
CONFAST SDR14114 – Frequently Asked Questions
1) What size drill bit do I use for a CONFAST split drive anchor?
Drill with a 1/4 inch bit. The CONFAST SDR split drive anchor is a 1/4 inch diameter anchor and the hole is drilled to the same nominal size, since the split shank compresses as it is hammered in. Drill the hole deeper than the embedment you need so debris has somewhere to go.
2) How thick a fixture can I fasten with the 1/4 inch split drive anchor?
It depends which length you pick, because minimum embedment is 1-1/8 inches and whatever is left grips the fixture. The 1/4 x 1-1/4 handles up to 1/8 inch of material, the 1/4 x 1-1/2 up to 3/8 inch, the 1/4 x 2 up to 7/8 inch, and the 1/4 x 2-1/2 up to 1-3/8 inch. Measure your bracket or plate first, then choose the length.
3) Can I use split drive anchors in block or brick instead of concrete?
No. CONFAST SDR split drive anchors are rated for concrete only. Hollow block, brick and mortar joints do not give the split shank the uniform compression it needs, and in hollow sections there is nothing to grip. For block or brick use an anchor rated for those base materials, such as a sleeve anchor or a tapcon-style screw anchor.
4) How far from the edge of a concrete slab can I set a 1/4 inch split drive anchor?
Keep the anchor at least 1-1/4 inches from any free edge, and space anchors at least 2-1/2 inches apart. Set closer than that and driving the anchor can spall or crack the concrete, which costs you the hold. On thin slab edges or curbs, lay out your bracket holes to those figures before you drill.
5) Are these split drive anchors OK outdoors or in a wet area?
Zinc plated steel with a dry location rating, so keep them to interior, dry use. Zinc plating slows corrosion but it is not a coating for exterior exposure, standing water, or wash-down and freeze-thaw areas. For those conditions specify a stainless or hot dip galvanized anchor instead.
6) Can a split drive anchor be removed once it is driven in?
Treat it as permanent. The split shank spreads against the walls of the hole as you hammer it in, so there is no nut to back off and no way to withdraw it without damaging the anchor and the concrete. If you need a fixture you can take down and re-mount later, use a removable anchor such as a wedge or sleeve anchor with a nut, or a threaded insert.
7) What hole size do I need in the bracket or fixture I'm mounting?
3/8 inch minimum through the fixture. The round head on the SDR anchor is larger than the 1/4 inch shank, so the fixture hole has to clear the shank while the head bears on the material. Anything tighter than 3/8 inch and the anchor will not pass through the fixture in place.
8) Is the 1/4 x 1-1/4 split drive anchor long enough for anything useful?
Barely. With 1-1/8 inches of the anchor buried to meet minimum embedment, the shortest 1-1/4 inch version leaves only 1/8 inch for the fixture, so it suits thin sheet metal, straps, and clips against the slab. Anything thicker, step up: 1-1/2 inch for material to 3/8 inch, 2 inch to 7/8 inch, 2-1/2 inch to 1-3/8 inch.
9) Will split drive anchors back out under vibration from equipment or conduit runs?
The split drive design keeps constant spring pressure against the hole walls, which is why it is used where vibration is present, unlike a threaded anchor that can loosen at the nut. Common uses are conduit straps, brackets, and hardware fastened straight to concrete in industrial and warehouse spaces.
10) How many anchors come in a box of CONFAST SDR anchors?
100 per box, in one size per box. Sizes run 1/4 x 1-1/4, 1/4 x 1-1/2, 1/4 x 2, and 1/4 x 2-1/2, so crews carrying more than one fixture thickness should order a box of each length rather than expecting a mixed pack.
How fast can I get the CONFAST SDR14114 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 SDR14114 come with a warranty?
Absolutely. The CONFAST SDR14114 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 SDR14114?
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