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Rock Exotica RockSteel Carabiners

Product # M31 TL
Certifications: ANSI Z359, CE, NFPA G, UIAA

The rockSteel offers a surprising strength-to-weight ratio in a carabiner of its capacity. Most steel carabiners are made from 1/2 diameter steel. Rock Exotica use a lighter, 7/16” diameter steel that is heat treated for added strength. Available in Auto-Lock and Screw-Lock versions.

  • $37.00
  • $37.00



Like Rock Exotica's aluminum carabiners, the rockSteel frames are CNC machined for precise fittings and exact tolerances. The result is a carabiner with a high strength-to-weight ratio, keylock snag-resistant nose and a feel like no other steel carabiner in the world.

The rockSteel carabiner is ANSI Z359.12 (09) and NFPA G compliant. The gate/sleeve is rated at 16kN or 3600 lbs, to protect against inward force against gate.
  • Large frame, with large, 1.2" gate opening
  • Impressively strong, yet lightweight
  • Rated for inward gate force
  • ANSI Z359.12 (09) and NFPA G compliant
Gate rockSteel Auto rockSteel Screw
Ref # M31 TL M31 SL
Locking Mechanism # of Stages 3-Stage Mechanism 2-Stage Mechanism
Mechanism Opening Description Pull down toward palm, twist and open Spin gate downward and open
MBS-Major 50kN 48kN
MBS-Minor 16kN 15kN
MBS-Open 18kN 18kN
Gate Opening 1.2" (30 mm) 1.2" (30 mm)
Weight 8.80 oz (246 gm) 8.10 oz (226 gm)
Height 4.9" (125 mm) 4.9" (125 mm)
Width 2.95" (75 mm) 2.95" (75 mm)
Color Silver/Black Silver
Certification CE / ANSI / NFPA CE/NFPA
Part # Locking Mechanism Color
M31 TL Auto-Lock Standard
M31 TLN Auto-Lock Black
M31 SL Screw-Lock Standard