3500248 – Nano-Lok edge (SRL) Self Retracting Lifeline – 8ft. (2.4m) – Steel lifeline w/ steel rebar hook – Single leg – For horizontal use / leading edge – Single-pin connector

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  •  8ft. (2.4m) of 3/16″ (5mm) galvanized steel wire rope lifeline
  • Single-pin connector for attachment to harness
  • Steel rebar hook for attachment to structure
  • Provides fall clearance as low as 4 ft.
  • Standards/Approvals: ANSI A10.32, ANSI Z359.14, OSHA 1910.66, OSHA 1926.502
  • Equipped with 3M™ Connected Safety ID (CSID)
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8 ft. (2.4m) lifeline with 3/16″ (5mm) galvanized steel wire rope and steel rebar hook, quick connector for harness mounting.

  • Personal self retracting lifeline – min. 4ft. fall clearance up to 310 lbs.
  • Single leg – 8 ft. (2.4m) lifeline with 3/16″ (5mm) galvanized steel wire rope
  • Steel rebar hook on lifeline for attachment to structure
  • Built-in connector for attachment to harness

Leading Edge SRL's

Leading Edge SRL's are intended for use when no overhead anchor point is available and foot-level tie-off is your only option.

This type of SRL is ideal for users working at more 6ft. fall clearance and along leading and sharp edges. When users are tied-off at foot level they are at risk for a greater fall, but these devices are designed to limit a fall within 18-24 inches; minimizing the chance of injury. Leading-edge SRL's are also equipped with deal with 'sharp edges' which are razor thin corners small enough to cut through traditional lifelines.

Leading-edge Vs. Regular SRL's
  • Leading edge SRL's are designed for foot-level tie-off
  • Leading edge SRL lifelines are designed for use on sharp edges
  • Works well with the self-rescue system


Self-retracting lifelines (SRL's)

An SRL is an alternative to traditional shock absorbing lanyards and work a lot like a seat-beat - pull out slowly and extend the line; but don;t you try to run with it.

These devices are specifically designed for professionals who work way up high - stopping falls within inches to allow great mobility.

Real quick - whats an SRL?
  • Retractable lifelines designed to stop a fall within inches.
  • Constantly under tension, but extends or retracts as the user moves up and down.
  • Offers greater protection then a shock absorbing lanyard.

TL;DR - Self-retracting lifelines connect a harness to an anchor and offers great fall protection than a simple lanyard.


Nano-lok SRL

These little devices make a big difference when it comes to working at height.

The new Nano-lok SRL's are easy to install, smaller and even take more of a beating than the previous model could.

Next-gen Features
  • Installation is 60% quicker
  • Rubber cover lasts 4x longer than the previous model
  • 4ft. overhead fall clearance per OSHA 1910
  • ANSI Class A/B models limit falls within 24"
  • 6ft. fall clearance required on Class B SRL's
  • Knee-level of higher tie-off.

"Nano-lok SRL's are the lightest ANSI certified SRL that allows for knee level tie-off."


Additional information

Weight4.80 lbs
Dimensions6 × 6 × 6 in
Connection Material

Galvanized steel

Hook type to Harness

Single-pin connector

Hook type to structure

Rebar Hook

Overall Length

8 ft. (2.4m)


Product Family

Lifeline Material

Synthetic Webbing

SRL Application

For horizontal use

Lanyard Leg Count



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