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CONFAST LSS Lag Shield Anchor Short
The CONFAST LSS Lag Shield Anchor Short is a 5/16" concrete anchor engineered for secure fastening into masonry and concrete surfaces. Sold by the box, with box quantity shown for each size, this lag shield anchor is in stock and ready for immediate delivery. Its short-length design suits applications where a standard anchor length is not required, offering dependable expansion anchoring for commercial and industrial installations. Ordering online through CONFAST also means avoiding inflated retail markups.
Key Features
- 5/16" Diameter: Sized for standard 5/16" lag bolt applications in concrete and masonry surfaces.
- Short-Length Design: Compact short profile for installations where a reduced anchor length is required compared to standard-length lag shields.
- Sold by the Box: Packaged and sold by the box, with the box quantity shown for each size for convenient bulk ordering.
- Concrete Anchor Construction: Purpose-built as a lag shield anchor for reliable expansion anchoring into concrete and masonry.
- In-Stock Availability: Maintained in stock and ready for immediate delivery without production lead times or backorder delays.
- Value Pricing: Available for purchase online at a savings versus high retail prices for the same anchor.
Technical Specifications
- Product Type: Concrete Anchor
- Country of Origin: China
Typical Applications
- Commercial Construction Projects
- Concrete and Masonry Installations
- Industrial and Warehouse Facilities
- Structural Fastening Applications
- General Contracting and Renovation Work
- Municipal and Infrastructure Projects
- Facility Maintenance and Repair Work
Why CONFAST LSS?
CONFAST concrete anchor products are built for dependable performance in demanding construction environments. The Lag Shield Anchor Short offers a trusted expansion anchoring solution for masonry and concrete fastening, backed by in-stock availability and fast shipping. Buying directly online also helps contractors and facility managers avoid the high retail prices often charged for the same anchor at brick-and-mortar suppliers. Choose CONFAST for reliable, ready-to-ship anchoring hardware for your next project.
Specifications
- Bolt Length: Fixture Thickness + Embedment Depth
- Max. Torque: 10 ft./lbs.
Specifications by Size
| Size | Pull-Out (lbs.) | Bit Size | Box Qty | Inside Anchor Ø-Bolt Ø | Internal Thread Length | Min. Edge Distance | Min. Embedment | Min. Fixture Hole Ø (Hole Spotted) | Min. Fixture Hole Ø (In Place) | Min. Spacing | Outside Anchor Ø | Thread Type | UPC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" (Box of 25) | 600 | 3/4" | 25 | 1/2" | 1-1/8" | 3-3/4" | 2" | 1/2" | 7/8" | 7-1/2" | 3/4" | 1/2" - 13 | 820274000724 |
| 1/4" (Box of 100) | 150 | 1/2" | 100 | 1/4" | 1/2" | 2-1/2" | 1" | 1/4" | 9/16" | 5" | 1/2" | 1/4" - 10 | 820274000731 |
| 3/4" (Box of 25) | 697 | 1" | 25 | 3/4" | 1-1/8" | 5" | 2" | 3/4" | 1-1/8" | 10" | 1" | 3/4" - 4-1/2 | 820274000748 |
| 3/8" (Box of 50) | 442 | 5/8" | 50 | 3/8" | 1" | 3-1/8" | 1-3/4" | 3/8" | 3/4" | — | 5/8" | 3/8" - 7 | 820274000755 |
| 5/16" (Box of 100) | 236 | 1/2" | 100 | 5/16" | 3/4" | 2-1/2" | 1-1/4" | 5/16" | 5/8" | 5" | 1/2" | 5/16" - 9 | 820274000762 |
| 5/8" (Box of 25) | 641 | 7/8" | 25 | 5/8" | 1" | 4-3/8" | 2" | 5/8" | 1" | 8-3/4" | 7/8" | 5/8" - 5 | 820274000779 |
Manufacturer Resources
Product Specs
- Product Type:
- Lag Shield Anchor
- Product Brand:
- CONFAST
- Country of Origin:
- China
- Department:
- Fasteners
- Product Group:
- Concrete Anchors
- Product Subgroup:
- Concrete Anchors
- Product Material:
- Zamac
- Location Rating:
- Wet
- Product Attribute:
- Female
CONFAST LSS12 – Frequently Asked Questions
1) What drill bit size do I need for a CONFAST lag shield anchor?
The bit size is larger than the bolt size, because the shield sits in the hole around the lag. Drill 1/2 inch for the 1/4 inch and 5/16 inch anchors, 5/8 inch for the 3/8 inch, 3/4 inch for the 1/2 inch, 7/8 inch for the 5/8 inch, and 1 inch for the 3/4 inch anchor. Ordering a bit that matches the bolt diameter is the most common mistake with these.
2) How deep does a lag shield anchor have to go into the concrete?
Minimum embedment runs 1 inch for the 1/4 inch, 1-1/4 inch for the 5/16 inch, 1-3/4 inch for the 3/8 inch, and 2 inches for the 1/2, 5/8 and 3/4 inch sizes. Bolt length should be figured as fixture thickness plus embedment depth, so buy the lag long enough to reach without bottoming out in the shield.
3) How much weight will a 3/8 inch CONFAST lag shield hold?
Published pull-out values are 150 lbs at 1/4 inch, 236 lbs at 5/16 inch, 442 lbs at 3/8 inch, 600 lbs at 1/2 inch, 641 lbs at 5/8 inch and 697 lbs at 3/4 inch. Those are ultimate pull-out figures, not working loads, so apply your own safety factor for the application.
4) How close to a slab edge can I set a CONFAST lag shield, and how far apart?
Minimum edge distance is 2-1/2 inches for the 1/4 and 5/16 inch, 3-1/8 inches for the 3/8 inch, 3-3/4 inches for the 1/2 inch, 4-3/8 inches for the 5/8 inch, and 5 inches for the 3/4 inch. Minimum spacing between anchors is 5 inches at 1/4 and 5/16 inch, 7-1/2 inches at 1/2 inch, 8-3/4 inches at 5/8 inch, and 10 inches at 3/4 inch. Set anchors closer than that to an edge and you risk blowing out the concrete when the shield expands.
5) What lag bolt thread fits inside these anchors?
Each shield is internally threaded to take a standard lag screw of the matching diameter: 1/4-10, 5/16-9, 3/8-7, 1/2-13, 5/8-5 and 3/4-4-1/2. Internal thread length is 1/2 inch on the 1/4 inch, 3/4 inch on the 5/16, 1 inch on the 3/8 and 5/8, and 1-1/8 inch on the 1/2 and 3/4 inch anchors. The anchor is female only, so lag bolts are bought separately.
6) How tight should I torque a lag bolt into these shields?
Maximum torque is 10 ft-lbs. Zamac expands against the hole wall, and over-torquing strips the internal thread or spins the shield in the hole rather than adding holding power. Snug to 10 ft-lbs and stop.
7) Can lag shield anchors be used outdoors or in wet areas?
Yes, the CONFAST LSS carries a wet location rating, so exterior concrete, loading docks and damp mechanical rooms are within scope. It is a Zamac alloy shield, so pair it with a lag bolt suited to the same exposure.
8) What size hole does the fixture need for a lag shield?
Two different numbers apply depending on how you drill. If the hole is spotted through the fixture, the fixture hole matches the anchor size (1/4, 5/16, 3/8, 1/2, 5/8 or 3/4 inch). If the fixture is set in place over an already drilled hole, you need the larger clearance: 9/16 inch for 1/4 inch, 5/8 inch for 5/16 inch, 3/4 inch for 3/8 inch, 7/8 inch for 1/2 inch, 1 inch for 5/8 inch and 1-1/8 inch for 3/4 inch.
9) What is the difference between a short and a long lag shield anchor?
The short body needs less embedment for the same bolt diameter, which is what you want in thinner slabs, block face shells or where you cannot drill deep. The long version buries further and picks up more holding surface in base material. If your concrete is thin or you are anchoring into hollow block webs, the short LSS is the one that fits; if you need maximum pull-out in solid concrete, go long.
10) How many CONFAST lag shields come in a box?
Box quantity varies with size: 100 per box in 1/4 inch and 5/16 inch, 50 per box in 3/8 inch, and 25 per box in 1/2 inch, 5/8 inch and 3/4 inch. All six sizes are sold by the full box.
How fast can I get the CONFAST LSS12 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 LSS12 come with a warranty?
Absolutely. The CONFAST LSS12 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 LSS12?
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