The PROTECH™ Aluminum Key-Lock Carabiner is a lightweight, high-strength connector designed for rescue, rope access, industrial safety, and technical rope operations. Its patented key-lock nose design prevents snagging on rope, webbing, and hardware, allowing smooth clipping and unclipping even in demanding environments. The optimized D-shaped frame maximizes strength while maintaining a compact, easy-to-handle profile.

Constructed from anodized aluminum, the PROTECH™ series offers multiple gate configurations to suit a variety of operational requirements, including Screw-Lock, Manual-Lock, and Auto-Lock options. The wide 1-inch gate opening accommodates railings and anchor points uncommon for a carabiner of this size, while etched safety indicators support fast visual confirmation during use. Every carabiner is proof loaded and individually serialized for quality assurance and traceability.

Features

• Lightweight anodized aluminum construction
• Patented key-lock nose design prevents snagging during clipping and unclipping
• Optimized D-shape maximizes strength and load distribution
• Wide 1-inch (25 mm) gate opening for versatile anchor connections
• Available in Screw-Lock, Manual-Lock, and Auto-Lock configurations
• Auto-Lock with Keeper version helps maintain proper orientation when used with lanyards and escape systems
• Safety indicators etched on the gate for enhanced usability
• Compact, lightweight design ideal for rescue and rope access applications
• Proof loaded for quality assurance
• Individually serialized for traceability
• Technical Use rated
• Patented design

Features

• Lightweight anodized aluminum construction
• Patented key-lock design eliminates snagging on rope and webbing
• Wide gate opening fits over 1-inch diameter railings and anchor points
• Optimized D-shape provides excellent strength-to-weight ratio
• Available in multiple locking configurations to suit operational needs
• Proof loaded and individually serialized for quality assurance
• Technical Use rated for rescue and rope access applications

Specifications

Screw-Lock, Brite (Item #300161)

• Weight: 2.6 oz (74 g)
• Gate Opening: 1 in (25 mm)
• Interior Length: 3.53 in (89 mm)
• Gate Type: Screw-Lock
• Color: Brite (Silver)
• NFPA Rating: Technical Use
• Major Axis Strength: 25 kN (5,620 lbf)
• Minor Axis Strength: 9 kN (2,023 lbf)
• Gate Open Strength: 7 kN (1,574 lbf)
• Minimum Breaking Strength (MBS): 25 kN (5,620 lbf)

Screw-Lock, Black (Item #300165)

• Weight: 2.6 oz (74 g)
• Gate Opening: 1 in (25 mm)
• Interior Length: 3.53 in (89 mm)
• Gate Type: Screw-Lock
• Color: Black
• NFPA Rating: Technical Use
• Major Axis Strength: 25 kN (5,620 lbf)
• Minor Axis Strength: 9 kN (2,023 lbf)
• Gate Open Strength: 7 kN (1,574 lbf)
• Minimum Breaking Strength (MBS): 25 kN (5,620 lbf)

Screw-Lock, Orange (Item #300169)

• Weight: 2.6 oz (74 g)
• Gate Opening: 1 in (25 mm)
• Interior Length: 3.53 in (89 mm)
• Gate Type: Screw-Lock
• Color: Orange
• NFPA Rating: Technical Use
• Major Axis Strength: 25 kN (5,620 lbf)
• Minor Axis Strength: 9 kN (2,023 lbf)
• Gate Open Strength: 7 kN (1,574 lbf)
• Minimum Breaking Strength (MBS): 25 kN (5,620 lbf)

Manual-Lock, Slate (Item #300182)

• Weight: 2.8 oz (79 g)
• Gate Opening: 1 in (25 mm)
• Interior Length: 3.53 in (89 mm)
• Gate Type: Manual-Lock
• Color: Slate
• NFPA Rating: Technical Use
• Major Axis Strength: 25 kN (5,620 lbf)
• Minor Axis Strength: 10 kN (2,248 lbf)
• Gate Open Strength: 7 kN (1,574 lbf)
• Minimum Breaking Strength (MBS): 25 kN (5,620 lbf)

Auto-Lock, Red (Item #300193)

• Weight: 2.8 oz (79 g)
• Gate Opening: 1 in (25 mm)
• Interior Length: 3.53 in (89 mm)
• Gate Type: Auto-Lock
• Color: Red
• NFPA Rating: Technical Use
• Major Axis Strength: 25 kN (5,620 lbf)
• Minor Axis Strength: 10 kN (2,248 lbf)
• Gate Open Strength: 7 kN (1,574 lbf)
• Minimum Breaking Strength (MBS): 25 kN (5,620 lbf)

Auto-Lock, Red with Keeper (Item #300153)

• Weight: 3.6 oz (102 g)
• Gate Opening: 1 in (25 mm)
• Interior Length: 3.53 in (89 mm)
• Gate Type: Auto-Lock with Keeper
• Color: Red
• NFPA Rating: Technical Use
• Major Axis Strength: 28 kN (6,295 lbf)
• Minor Axis Strength: 11 kN (2,473 lbf)
• Gate Open Strength: 7 kN (1,574 lbf)
• Minimum Breaking Strength (MBS): 28 kN (6,295 lbf)