COB5K-RB ALPHA Swivel 5K Concrete Anchor Replacement Bolt
The COB5K-RB is the genuine replacement concrete bolt for the Frontline COB5K ALPHA Swivel 5K concrete anchor. The ALPHA anchor ships with one bolt per anchor, and the anchor body itself is reusable - but when the crew installs at a new anchoring point, the bolt that was used has to be replaced with a new one. This is that bolt.
Keeping a supply of COB5K-RB bolts on hand is what makes the ALPHA system economical: the anchor body moves from tie-off point to tie-off point indefinitely, and each relocation costs only a bolt. It is the suitable replacement specified by Frontline for anchor part number COB5K. Sold as a 4-pack — four replacement bolts for $119, shipped together in one order.
Who Needs This Product
This product is a replacement component, not a standalone anchor. It belongs in the kit of every crew that runs COB5K ALPHA Swivel anchors on concrete - one fresh bolt for every new anchoring point. The anchor body, harness, and connecting device complete the system.
Features
Genuine Frontline part
The suitable replacement bolt specified by Frontline for the ALPHA Swivel 5K concrete anchor, part number COB5K.
Enables true reusability
The ALPHA anchor body is reusable; a fresh bolt at each new anchoring point is all it takes to relocate it.
One bolt, one set point
Frontline requires the initial bolt to be replaced with a new bolt when installing at a new anchoring point.
Economical by design
Each anchor relocation costs a bolt, not a new anchor.
Easy swap
The bolt exchanges quickly so the anchor body goes right back to work.
Stock-up friendly
Ships as a 4-pack - keep the spares in the gang box so a missing bolt never idles an anchor.
Technical Specifications
| SKU | COB5K-RB |
|---|---|
| Type | Replacement concrete bolt (component part) |
| Fits | Frontline COB5K ALPHA Swivel 5K Concrete Anchor |
| Usage | Install one new bolt at each new anchoring point; do not reuse a bolt |
| Shipping weight | Approx. 1 lb |
| Sold | Individually |
| Documentation | Covered by the COB5K spec sheet and user manual (linked below) |
| Sold As | 4-Pack (4 per order) |
Never reuse a spent bolt. When the COB5K anchor is moved to a new anchoring point, the bolt that was used must be replaced with a new COB5K-RB. Use only genuine Frontline replacement bolts, follow the COB5K user manual for installation and torque, and have a qualified person verify the concrete before use.
Compliance Standards
Component part
The COB5K-RB is a replacement bolt, not a standalone anchorage connector, and carries no separate compliance listing of its own. It functions as a component of the Frontline COB5K ALPHA Swivel anchor.
Genuine parts matter
Using the Frontline-specified replacement bolt and following the COB5K user manual is how the installed anchor keeps performing as designed. Substituting generic hardware is not authorized.
Typical Applications
Bolt Replacement Overview
Follow the manufacturer's manual. The sequence below is an overview only.
- Inspect. Check the new bolt for thread damage, corrosion, or defects before installation.
- Remove. Take the COB5K anchor body down from the previous anchoring point and discard the used bolt.
- Verify structure. Have a qualified person confirm the new concrete location carries the intended fall protection load.
- Drill. Prepare the new anchor hole to the COB5K manual requirements.
- Install. Mount the anchor body with the new COB5K-RB bolt and torque to the manual specification.
- Confirm. Verify the anchor is secure and the D-ring swivels freely before connecting.
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.
- Threads: damage, debris, or corrosion on the new bolt before installation.
- Shank and head: cracks, nicks, or deformation.
- Installed torque: loss of torque at the anchoring point during service.
- Service history: any bolt that has already secured an anchoring point must not be reinstalled.
- Pairing: confirm the bolt is the genuine COB5K-RB part for the COB5K anchor.
A bolt is single-set hardware: once it has been used to secure an anchoring point, replace it with a new COB5K-RB at the next installation. Discard any bolt with thread damage, corrosion, or deformation, and discard the bolt in service after any fall arrest event.
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Frequently Asked Questions
Frontline COB5K-RB Submittals and Documentation
Frontline COB5K Spec Sheet (PDF)Ratings and materials for the COB5K anchor this bolt serves. Frontline COB5K User Manual (PDF)Installation, bolt replacement, and torque procedures for the COB5K anchor system.Compatible and Related Products
- Frontline COB5K ALPHA Swivel 5K Concrete Anchor. The reusable ALPHA swivel anchor this replacement bolt keeps in service.
- Frontline COB01SW Concrete Swiveling Anchor. A forged steel swiveling concrete anchor alternative.
Stocking Up on ALPHA Bolts?
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.
