Van Beest Green Pin 1-3/4" G-4163 Bolt Type Anchor Shackle - 25 Ton WLL

Green Pin® G-4163 Bolt-Type Safety Bow Shackle – Permanent Security for Critical Rigging

Some lifts don't allow for shortcuts. When your rigging needs to stay connected—through sustained loads, dynamic forces, and extended service periods—you need a shackle that won't work loose, won't fail, and won't let you down. The Green Pin® G-4163 Bolt-Type Safety Bow Shackle is built precisely for those applications, delivering the locked-in security of a full bolt, nut, and cotter pin assembly in a certified, heavy-duty package trusted across the world's most demanding industries.

When Screw Pins Aren't Enough

Where screw pins can back out under rotation or vibration, the G-4163's bolt, nut, and cotter pin configuration physically locks the pin in place—eliminating the risk of accidental disengagement under load. It's the hardware choice for configurations that need to stay put: long-duration suspensions, offshore structural connections, permanent mooring assemblies, and any application where pin rotation is a real operational risk.

Forged Strong. Built to Last.

The G-4163 is manufactured from Grade 6 high-tensile steel, quenched and tempered throughout for a uniform, high-performance metallurgical structure. This delivers exceptional tensile strength, impact resistance, and fatigue performance across the full working load range—from 0.5 metric tons to 85 metric tons, with bow diameters spanning 7 mm to 75 mm (1/4" to 3"). Every size is engineered to a 6:1 safety factor, meaning the minimum breaking load is six times the working load limit.

Hot-Dip Galvanized for Corrosion Defense

The hot-dip galvanized finish bonds a thick, metallurgically integrated zinc layer to the steel substrate, providing long-term corrosion resistance that outlasts paint, plating, and spray coatings in real-world service. For offshore, marine, coastal, and outdoor industrial applications, the G-4163's finish means fewer replacements, lower maintenance costs, and longer service intervals.

Extreme Temperature Capability

The G-4163 maintains full structural and mechanical performance across a -40°C to +200°C (-40°F to +392°F) temperature range—from cold-climate infrastructure and Arctic offshore projects to high-temperature processing plant environments.

Global Certifications. Project-Ready Documentation.

Conforming to EN 13889 as standard and ASME B30.26 for sizes 2 tons and above, the G-4163 satisfies certification requirements across both European and North American project environments. Optional certifications include DNV GL, CE marking, ABS PDA, and material test certificates.

Key Applications:

• Permanent and semi-permanent rigging assemblies
• Offshore platform structural connections and mooring systems
• Marine and subsea lifting hardware
• Construction crane rigging requiring locked-pin security
• Industrial plant, refinery, and infrastructure lifting operations

Specifications at a Glance: