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CONFAST CSF Flat Phillips Concrete Screw Anchor with Drill Bit
The CONFAST CSF Flat Phillips Concrete Screw Anchor is a self-tapping fastener engineered for fast, secure anchoring into concrete and masonry. Available in 3/16" and 1/4" diameters with lengths ranging from 1-1/4" up to 6", this concrete screw includes a compatible drill bit for accurate pilot-hole drilling. Each box contains 100 screws and is manufactured in Taiwan. Items ship immediately from stock.
Key Features
- Wide Size Range: Offered in 3/16" and 1/4" diameters with lengths from 1-1/4" to 6", covering sizes such as 3/16" x 1-3/4", 3/16" x 4", 1/4" x 3-1/4", and 1/4" x 6" for varied concrete anchoring depths.
- Includes Drill Bit: Each screw is paired with a properly sized drill bit to simplify pilot-hole preparation and ensure a secure hold.
- Flat Phillips Head: Flat countersunk head with a Phillips drive delivers a flush, finished appearance once installed.
- Bulk Box Packaging: Sold in boxes of 100 (Box Quantity: 100), making it practical for contractors and larger installation jobs.
- Taiwan Manufacturing: Produced in Taiwan under consistent quality control for reliable fastener performance.
- Ready to Ship: Item is in stock and ships immediately from CONFAST inventory.
Technical Specifications
- Country of Origin: Taiwan
- Box Quantity: 100
- Product Size: 3/16" x 1-3/4"
- Product Size: 3/16" x 2-1/4"
- Product Size: 3/16" x 2-3/4"
- Product Size: 3/16" x 3-1/4"
- Product Size: 3/16" x 3-3/4"
- Product Size: 3/16" x 4"
- Product Size: 1/4" x 1-1/4"
- Product Size: 1/4" x 1-3/4"
- Product Size: 1/4" x 2-1/4"
- Product Size: 1/4" x 2-3/4"
- Product Size: 1/4" x 3-1/4"
- Product Size: 1/4" x 3-3/4"
- Product Size: 1/4" x 4"
- Product Size: 1/4" x 5"
- Product Size: 1/4" x 6"
Typical Applications
- Concrete and Masonry Anchoring
- Commercial Construction Projects
- Electrical and HVAC Mounting
- Cabinetry, Shelving, and Fixture Installation
- Fence and Railing Installation
- Industrial and Warehouse Facilities
- General Contractor and DIY Projects
Why CONFAST CSF?
CONFAST concrete screw anchors are built for dependable performance in demanding concrete and masonry fastening applications. With a wide range of available sizes, an included drill bit for accurate installation, and consistent Taiwan-based manufacturing, the CSF Flat Phillips Concrete Screw is a practical choice for contractors and builders who need reliable anchoring hardware on hand and ready to ship.
Specifications
- Box Qty: 100
- Head Type: Flat Phillips
- Min. Embedment: 1"
- Thread Type: High-Low
Specifications by Size
| Size | Pull-Out (lbs.) | Shear (lbs.) | Bit Size | Driver Size | Max. Fixture Thickness | Min. Edge Distance | Min. Fixture Hole Ø (Hole Spotted) | Min. Fixture Hole Ø (In Place) | Min. Spacing | Thread Length | UPC |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/16" x 1-1/4" | 450 | 540 | 5/32" | #2 | 0" to 1/4" | 2-1/4" | 1/4" | 1/4" | 3" | 1-1/4" | 820274000083 |
| 3/16" x 1-3/4" | 450 | 540 | 5/32" | #2 | 1/4" to 3/4" | 2-1/4" | 1/4" | 1/4" | 3" | 1-3/4" | 820274000090 |
| 3/16" x 2-1/4" | 450 | 540 | 5/32" | #2 | 3/4" to 1-1/4" | 2-1/4" | 1/4" | 1/4" | 3" | 1-3/4" | 820274000106 |
| 3/16" x 2-3/4" | 450 | 540 | 5/32" | #2 | 1-1/4" to 1-3/4" | 2-1/4" | 1/4" | 1/4" | 3" | 1-3/4" | 820274000113 |
| 3/16" x 3-1/4" | 450 | 540 | 5/32" | #2 | 1-3/4" to 2-1/4" | 2-1/4" | 1/4" | 1/4" | 3" | 1-3/4" | 820274000120 |
| 3/16" x 3-3/4" | 450 | 540 | 5/32" | #2 | 2-1/4" to 2-3/4" | 2-1/4" | 1/4" | 1/4" | 3" | 1-3/4" | 820274000137 |
| 3/16" x 4" | 450 | 540 | 5/32" | #2 | 2-1/2" to 3" | 2-1/4" | 1/4" | 1/4" | 3" | 1-3/4" | 820274000144 |
| 1/4" x 1-1/4" | 562 | 675 | 3/16" | #3 | 0" to 1/4" | 3" | 5/16" | 5/16" | 4" | 1-1/4" | 820274000007 |
| 1/4" x 1-3/4" | 562 | 675 | 3/16" | #3 | 1/4" to 3/4" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000014 |
| 1/4" x 2-1/4" | 562 | 675 | 3/16" | #3 | 3/4" to 1-1/4" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000021 |
| 1/4" x 2-3/4" | 562 | 675 | 3/16" | #3 | 1-1/4" to 1-3/4" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000038 |
| 1/4" x 3-1/4" | 562 | 675 | 3/16" | #3 | 1-3/4" to 2-1/4" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000045 |
| 1/4" x 3-3/4" | 562 | 675 | 3/16" | #3 | 2-1/4" to 2-3/4" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000052 |
| 1/4" x 4" | 562 | 675 | 3/16" | #3 | 2-1/2" to 3" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000069 |
| 1/4" x 5" | 562 | 675 | 3/16" | #3 | 3-1/2" to 4" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274000076 |
| 1/4" x 6" | 562 | 675 | 3/16" | 5/16" | 4-1/2" to 5" | 3" | 5/16" | 5/16" | 4" | 1-3/4" | 820274003602 |
Manufacturer Resources
Product Specs
- Product Type:
- Flat Head Concrete Screw
- Product Brand:
- CONFAST
- Country of Origin:
- Taiwan
- Box Quantity:
- 100
- Department:
- Fasteners
- Product Group:
- Concrete Anchors
- Product Subgroup:
- Concrete Screws
- Product Material:
- Blue Coated
- Location Rating:
- Dry
- Product Attribute:
- Male (threaded stud)
CONFAST CSF316114 – Frequently Asked Questions
1) Does the CONFAST CSF concrete screw come with the drill bit, or do I need to buy one separately?
Each box of the CONFAST CSF flat Phillips concrete screw ships with a matching drill bit sized for the screw diameter, so no separate bit purchase is needed to drill the pilot hole. Boxes contain 100 screws.
2) Can I use these CONFAST screws in block and brick, or only in poured concrete?
The CSF is a self-tapping fastener for concrete and masonry, so block and brick are within its intended base materials as well as poured concrete. It cuts its own threads into a pre-drilled pilot hole rather than expanding like a sleeve or wedge anchor.
3) Is a concrete screw the right anchor here, or should I be using a wedge or sleeve anchor?
A concrete screw like the CSF is the choice when you want a removable, low-expansion fastener close to an edge, or when you are hanging fixtures, shelving, cabinetry, fence posts and railing bases that may need to come back off. Wedge anchors are the answer for sustained heavy structural loads, but they expand in the hole, can't be backed out cleanly, and need more edge distance. For general contractor mounting work in concrete and block, the screw installs faster and needs only a pilot hole.
4) What diameters and lengths does the CONFAST CSF flat head concrete screw come in?
Two diameters, 3/16 inch and 1/4 inch. In 3/16 inch the lengths run 1-1/4, 1-3/4, 2-1/4, 2-3/4, 3-1/4, 3-3/4 and 4 inches. In 1/4 inch you get those same lengths plus 5 inch and 6 inch. Pick the length so the screw embeds into the concrete past the thickness of whatever you are fastening down.
5) Will a flat Phillips concrete screw sit flush, or does the head stand proud of the surface?
The CSF has a flat countersunk head with a Phillips drive, so it pulls down flush into a countersunk hole or into softer material like wood furring and trim. If you are mounting steel strut, brackets or plates with clearance holes that are not countersunk, a hex washer head screw is the better bearing surface.
6) Do I need a hammer drill to install these, and can I run them in with an impact driver?
You drill the pilot hole with a hammer drill using the bit supplied with the box, then drive the screw with a Phillips bit. Because the CSF cuts its own threads in the hole, hole size and hole depth matter more than drive speed - drill the hole deeper than the embedment you want so cuttings have somewhere to go, and blow the dust out before driving.
7) Which size should I use for mounting electrical boxes and strut to a concrete wall?
Light electrical and HVAC mounting is what this screw is built for, and 3/16 inch is the usual choice for boxes, clips and conduit straps where the load is modest. Step up to 1/4 inch for strut, heavier equipment brackets, or anywhere you want more embedment - the 1/4 inch runs out to 5 and 6 inch lengths for fastening through thick standoff material.
8) How many CONFAST CSF screws are in a box, and is it a mixed size box?
One hundred screws per box, all one size. Diameter and length are chosen as a single option when you order, so a box of 1/4 x 3-1/4 is a hundred of that size only. If a job needs two lengths, order two boxes.
9) Where are CONFAST concrete screws made?
The CSF flat Phillips concrete screw is manufactured in Taiwan. Worth noting if you are bidding public or institutional work with country-of-origin requirements on the spec.
How fast can I get the CONFAST CSF316114 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 CSF316114 come with a warranty?
Absolutely. The CONFAST CSF316114 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 CSF316114?
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