RO2W 2-Way Standing Seam Roof Anchor
The Frontline RO2W is a 2-way standing seam roof anchor that clamps to the seam instead of puncturing the panel. Wide and thin brackets close on the seam profile, four 1/2 in Grade 5 bolts with lock springs draw them tight, and a welded 1/2 in steel O-ring stands ready as your tie-off point - no holes, no sealant, no leaks.
Machined from ASTM A36 rated steel with galvanized and zinc plated finishes, the RO2W measures 2 in x 4 in x 6 in, weighs 8 lbs, and carries a 5,000 lbf tensile strength with a 310 lb max user capacity. Intertek tested it to ANSI/ASSP Z359.18-2017 as a Type T anchorage connector, and it aligns with OSHA 1926 and 1910. Bolts and washers are included.

Who Needs This Product
This product is a non-penetrating anchorage connector for personal fall arrest or restraint systems on standing seam metal roofs. Metal roofing crews, HVAC techs, and solar installers clamp it to the seam, tie off, and remove it without leaving a mark on the panel. Each worker still needs a full body harness and a compatible connecting device attached to the O-ring. For single-point seam clamping with round-point seams, compare the SSRA1 Standing Seam Roof Anchor.
Features
Non-penetrating clamp
The 2-way bracket pair grips the seam profile - the panel is never drilled.
Welded O-ring tie-off
A 1/2 in welded steel O-ring presents a generous connection point.
Grade 5 hardware included
Four 1/2 in x 2-1/2 in Grade 5 bolts with washers and lock springs ship in the box.
ASTM A36 rated steel
Galvanized and zinc plated for life on a metal roof.
Minutes to set
Position, torque the four bolts, pull-test, work.
Independently tested
Intertek Z359.18-2017 Type T test report included in Submittals.
Technical Specifications
| SKU | RO2W |
|---|---|
| Type | 2-way standing seam roof anchor (non-penetrating anchorage connector, Type T) |
| Anchor size | 2 in L x 4 in W x 6 in H |
| Weight | 8 lbs |
| Top | 1/2 in welded steel O-ring |
| Fasteners | (4) 1/2 in x 2-1/2 in Grade 5 bolts with 1/2 in washers and lock springs (included) |
| Device material | ASTM A36 rated steel |
| O-ring | Galvanized steel |
| Finish | Galvanized and zinc plated |
| Tensile strength | 5,000 lbf / 22 kN |
| Max user capacity | 310 lbs (one worker) |
| Standards | ANSI Z359.18-2017 Type T (Intertek tested); OSHA 1926; OSHA 1910 |
Match the clamp to the seam. The RO2W earns its rating clamped on a compatible standing seam profile with all four Grade 5 bolts torqued per the Frontline manual. Verify panel and seam condition with a qualified person before anyone ties off. One worker per anchor at 310 lbs maximum.
Compliance Standards
ANSI Z359.18-2017 Type T
American National Standard for anchorage connectors. Intertek tested the RO2W: design, static, dynamic, residual, and serviceability static load requirements all PASS - see the test report in Submittals.
OSHA 29 CFR 1926.502
Federal construction fall protection criteria, including anchorage strength requirements.
OSHA 29 CFR 1910.140
General industry personal fall protection system requirements.
Typical Applications
How to Install the RO2W Seam Anchor
Follow the manufacturer's manual. The sequence below is an overview only.
- Verify the roof. Have a qualified person confirm the seam profile, panel gauge, and attachment can support anchorage loads.
- Inspect the anchor. Check brackets, O-ring, weld, bolts, and lock springs before installation.
- Position on the seam. Set the wide and thin brackets over the seam at the work location.
- Torque the bolts. Tighten all four 1/2 in Grade 5 bolts per the Frontline manual.
- Connect. Attach your connecting device to the O-ring and perform a pull test.
- Verify clearance. Confirm fall clearance below the work surface 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.
- O-ring and weld: deformation, cracks, nicks, or corrosion.
- Brackets: bending, cracks, or gouging at the seam interface.
- Bolts and lock springs: thread damage, missing washers, loss of torque.
- Seam and panel: deformation or tearing at the clamp location.
- Markings: labels must be present and legible.
Retire the anchor immediately after any fall arrest event or if any inspection point fails. Destroy retired equipment so it cannot return to service.
Frequently Asked Questions
Frontline RO2W Submittals and Documentation
Frontline RO2W Spec Sheet (PDF)Anchor dimensions, materials, fasteners, and strength ratings for the 2-way seam anchor. Frontline RO2W User Manual (PDF)Installation, torque requirements, inspection requirements, and inspection log. Frontline RO2W Test Report (PDF)Intertek third-party test results to ANSI/ASSP Z359.18-2017 Type T. Frontline Catalog (PDF)The full Frontline Fall Protection product catalog with the complete anchor, lanyard, and SRL range.Compatible and Related Products
- SSRA1 Standing Seam Roof Anchor. Our flagship seam anchor - fits 95 percent of today's standing seam profiles.
- Frontline RPGCLE Leading Edge Cable SRL. A leading-edge rated SRL to pair with seam anchorage.
- Frontline 100CTB Combat Construction Harness. The construction harness to pair with any anchorage connector.
Working on Standing Seam Metal Roofs?
Seam profiles vary, and the right anchor depends on yours. Confirm your panel profile, application, 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.
