Hercules SLR Inc.
Grade 80 – Alloy Steel
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Slings are designated throughout the industry by these symbols:
First Symbols (Basic Type)
S Single chain sling with master link and hook or hook each end.
C Single choker chain with master link each end, no hooks.
D Double chain sling with standard master links and hooks.
T Triple chain sling with standard master link and hooks.
Q Quadruple chain sling with standard master link and hooks.
Second Symbol (Type of master link or end)
O Standard oblong master link – recommended for all.
P Pear shaped master link – available on request.
R Round link – not recommended.
S Sling hook
Third Symbol
S Sling hook
G Grab hook
F Foundry hook
