3
A.
To a D-ring to which another connector is attached.
B.
In a manner that would result in a load on the gate.
NOTE:
Large throat snap hooks should not be connected to standard size D-rings or similar objects which will result in a load
on the gate if the hook or D-ring twists or rotates. Large throat snap hooks are designed for use on fixed structural elements
such as rebar or cross members that are not shaped in a way that can capture the gate of the hook.
C.
In a false engagement, where features that protrude from the snap hook or carabiner catch on the
anchor, and without visual confirmation seems to be fully engaged to the anchor point.
D.
To each other.
E.
Directly to webbing or rope lanyard or tieback (unless the manufacturer’s instructions for both the
lanyard and connector specifically allows such a connection).
F.
To any object which is shaped or dimensioned such that the snap hook or carabiner will not close and
lock, or that roll-out could occur.
G.
In a manner that does not allow the connector to align properly under load.
Figure 2 - Unintentional Disengagement (Rollout)
If the connecting element to which a snap hook (shown) or carabiner attaches is undersized or irregular in
shape, a situation could occur where the connecting element applies a force to the gate of the snap hook
or carabiner. This force may cause the gate (of either a self-locking or a non-locking snap hook) to open,
allowing the snap hook or carabiner to disengage from the connecting point.
Small ring or
other non-
compatibly
shaped element
1. Force is applied to the snap hook.
2. The gate presses against the
connecting ring
3. The gate opens allowing the snap
hook to slip off
Figure 3 - Inappropriate Connections
