COB345KSV Reusable 5K Concrete Anchor Bolt with Swiveling D-Ring
The COB345KSV takes Frontline's most popular reusable concrete anchor bolt and adds a swiveling D-ring at the connection point, so the lifeline stays aligned with the worker instead of twisting the anchor as the job moves around the tie-off. Drill a 3/4 inch hole, insert the bolt, and the anchor sets in a matter of seconds - then removes just as fast for the next location.
The anchor carries a 5,000 lbf breaking strength, a 1,000 lb working load, and a 310 lb user capacity at just 0.4 lbs, built from stainless steel, zinc plated and aluminum components, and aircraft cable. Per the Frontline spec sheet it conforms to ANSI Z359.1-2007 and ANSI Z359.7-2011 and aligns with OSHA 1926.502, OSHA 1910.66, and EN 795.
Who Needs This Product
This product is a reusable anchorage connector - the anchor point of a personal fall arrest system on concrete. Crews that work around the anchor point choose the swivel version so the connecting device follows them without side-loading the bolt. Each worker still needs a full body harness and a compatible connecting device attached to the swiveling D-ring.
Features
Swiveling D-ring
The D-ring connection point rotates with the worker, keeping the lifeline aligned and reducing twist at the anchor.
Seconds to install
Once the 3/4 inch hole is drilled, the anchor bolt sets in a matter of seconds - no adhesives, no cure time.
Fully removable and reusable
Pull the anchor when the work moves and reinstall it at the next location, job after job.
1,000 lb working load
Rated working load on top of the 5,000 lbf breaking strength for everyday duty.
Vertical or horizontal
Works in walls, decks, and soffits wherever hole placement meets the manual requirements.
Featherweight
At 0.4 lbs, a pouch of anchors goes anywhere the crew goes.
Technical Specifications
| SKU | COB345KSV |
|---|---|
| Type | Reusable concrete anchor bolt with swiveling D-ring (removable anchorage connector) |
| Material | Stainless steel, zinc plated copper, aluminum, aircraft cable; swiveling D-ring |
| Breaking strength | 5,000 lbf / 22 kN |
| Working load | 1,000 lbs / 454 kg |
| Max user weight | 310 lbs / 140 kg (one worker) |
| Hole requirement | 3/4 in (20 mm) diameter; 6 in min edge distance with 12 in thick concrete, or 12 in edge distance with 5 in thick concrete |
| Anchor weight | 0.4 lbs (product page) |
| Application | Concrete, vertical or horizontal, removable and reusable |
| Standards | ANSI Z359.1-2007; ANSI Z359.7-2011; OSHA CFR 1926.502; OSHA CFR 1910.66; EN 795 |
The concrete carries the load. The concrete substrate must be verified by a qualified person for the intended fall protection load before use, and the hole must meet the manual requirements - 6 inches minimum from an edge in 12 inch thick concrete, or 12 inches from an edge in 5 inch thick concrete. One worker per anchor at 310 lbs maximum.
Compliance Standards
ANSI Z359.1-2007
American National Standard safety requirements for personal fall arrest system components, including anchorage connectors.
ANSI Z359.7-2011
Qualification and verification testing of fall protection products by accredited third-party laboratories.
OSHA 29 CFR 1926.502
Federal construction fall protection criteria, including anchorage strength requirements.
OSHA 29 CFR 1910.66
OSHA powered platform regulation whose Appendix C personal fall arrest criteria are cited on the Frontline spec sheet.
EN 795
European standard for personal fall protection anchor devices.
Typical Applications
Installation Overview
Follow the manufacturer's manual. The sequence below is an overview only.
- Inspect. Check the cable, locking mechanism, swiveling D-ring, and label before each installation.
- Verify structure. Have a qualified person confirm the concrete carries the intended fall protection load.
- Drill. Drill a 3/4 inch diameter hole to the manual depth at the required edge distance, and clean it out.
- Insert. Insert the anchor bolt and set it per the manual - installation takes a matter of seconds.
- Check the swivel. Confirm the D-ring rotates freely with no binding and the anchor is fully seated.
- Connect. Attach the connecting device to the D-ring and verify fall clearance before work begins.
Inspection and Retirement
Inspect before each use, with a documented competent-person inspection at least every 6 months. Pull the equipment from service for any of the conditions below.
- Aircraft cable: broken wires, kinks, birdcaging, or corrosion.
- Locking mechanism: deformation, cracks, wear, or debris that prevents full engagement.
- Swiveling D-ring: binding, play, bending, nicks, or wear at the connection point.
- Hardware: corrosion or damage to the plated and aluminum components.
- Markings: missing or illegible product label.
Retire the anchor immediately after any fall arrest event, any deformation, cable damage, or any condition where it cannot be verified as safe for service.
Fall ProtectionDistributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k).
Frequently Asked Questions
Frontline COB345KSV Submittals and Documentation
Frontline COB345KSV Spec Sheet (PDF)Strengths, materials, hole requirements, and the compliance summary. Frontline COB345K Family User Manual (PDF)Installation, removal, inspection, and retirement for the COB345K anchor bolt family, including the SV.Compatible and Related Products
- Frontline COB345K Reusable 5K Concrete Anchor Bolt. The standard fixed-eye version of the same reusable anchor bolt platform.
- Frontline COB01SW Concrete Swiveling Anchor. A forged steel bolt-on concrete anchor with a 360 degree swivel D-ring.
- Frontline COM345K MEGA Swivel Concrete Anchor. The MEGA Swivel 5K anchor for concrete with a replaceable bolt.
Want a Swiveling Tie-Off on Concrete?
Need help specifying the right system for your jobsite? Confirm your application, anchorage, and clearance with us and we will walk through the kit list so the right equipment ships together.
Call 863-703-4522 to talk to a fall protection specialist.
