Tie-Off Adapters & Cross-Arm Straps

Fall protection is only as good as its anchor. When there isn’t a built-in anchor point, workers use anchorage connectors: straps, slings, beam clamps and similar devices that create a place to connect a lanyard or lifeline. Picking the wrong connector or rigging it badly can make the whole system fail when it’s needed.

• Steel & Roofing
• Utilities
• All Fall Protection Users

What these devices do

• An anchorage is a secure point where a fall arrest system attaches. An anchorage connector is a device that links the system to the anchorage, or creates the anchor point on a structure. See Anchorage Points.
• Tie-off adapters (anchor slings or straps) wrap around a beam, column or pipe and have a D-ring or loop to connect to.
• Cross-arm straps are heavy-duty straps made for wrapping around utility pole cross-arms and similar structures.
• Beam anchors and clamps attach to a flange or beam, and trolley anchors roll along a beam for work along its length.
• Choker slings can be wrapped and choked around a member, but only if made and rated as an anchorage connector.
• Temporary roof anchors screw or nail onto a roof, and reusable anchor plates bolt to concrete or steel. See Roof Work.

Strength requirements

• OSHA says anchorages for personal fall arrest systems must support at least 5,000 pounds per person attached, or be designed, installed and used under the supervision of a qualified person as part of a complete system with a safety factor of at least two (29 CFR 1926.502(d)(15)). General industry rules are similar (1910.140). See Personal Fall Arrest Systems.
• Anchorage connectors are tested under standards such as ANSI/ASSP Z359.18. Choose products marked as meeting the standard, with the rating on the label. See ANSI Z359 Fall Protection Standards.
• An anchorage for restraint (preventing a fall) needs less strength than for arrest, but still must be sound. See Fall Restraint.
• A connector can’t be stronger than the thing it’s attached to. A strap on a weak pipe, handrail, conduit or small member is useless. See the next section.

Choosing a good anchor point

• Pick a structural member that can carry the load: a beam, column or girder. Avoid guardrails, conduit, piping, ductwork, ladders, scaffold parts and bracing unless an engineer approves.
• Choose it above the dorsal D-ring when possible, to limit fall distance and swing. See Fall Clearance and Swing Falls.
• Make sure the connector fits the member without twisting, kinking or unsafe angles. Don’t force it.
• Use a connector rated for the job: check the manufacturer’s instructions for the use, such as choking, wrapping, flange widths and direction of load.
• Keep the load in line. Pull in the direction the connector is designed for. Side loads can cause a beam clamp to slip.
• Make a closed connection. Use locking snap hooks or carabiners that fit the D-ring, and connect straight (no side loading). See Connectors & Snap Hooks.

Sharp edges and hot work

• Protect webbing from sharp edges. Steel edges, concrete corners and metal decking can cut a strap in a fall. Use connectors with edge protection (such as steel or leather wear pads, or cut-resistant materials) rated for the edge, or add padding.
• Don’t use a standard webbing connector near hot work (welding, torch cutting or grinding sparks), since heat and sparks can burn through it. Use steel cable or flame-resistant versions designed for the work. See Welding & Cutting.
• Avoid chemicals, abrasives and UV damage, and keep straps away from sharp bolt heads and rough surfaces.

Rigging mistakes to avoid

• Choking a lanyard or lifeline around a member and hooking back onto itself, unless it is designed for it
• Using a strap with a damaged D-ring, cut stitching or frays
• Tying knots in webbing, which weaken it significantly
• Anchoring a lanyard to a guardrail, pipe or ladder rung
• Letting a connector slide along a sloped member, such as a rafter or pipe, where it can slip off
• Using a connector with a shock absorber when there isn’t enough clearance below to deploy it
• Sharing one anchor for several people unless it’s rated for each
• Using a damaged or homemade anchor

Inspection and care

• Inspect before every use: look for cuts, burns, frays, broken stitches, chemical damage, mildew, hard or stiff spots, bent or cracked hardware, rust, loose rivets and unreadable labels. Remove from service if you find damage. See Fall Gear Inspection.
• Have a competent person inspect formally at the interval the maker or program requires, and keep records.
• Remove from service any device that has arrested a fall. Mark it and destroy it, or send it to the maker for evaluation.
• Store clean and dry, away from heat, sun and chemicals, and not on a floor where they can be run over.
• Follow the manufacturer’s service life guidance.

Anchor connector checklist

• The anchor is on a solid structural member and rated for 5,000 pounds per person (or engineered)
• The connector is rated and made for this use, and fits without forcing
• It’s above the harness D-ring where possible, with enough fall clearance
• Sharp edges and hot work are addressed with the right materials
• Locking connectors are closed, with no side loading or knots
• It’s inspected before use, and removed after a fall or damage

Last updated: October 5, 2026