Menu
0 Cart
SKU GGRXTB37 Building Maintenance System

Facade Access Restraint Pin

BMU Restraint Anchor

Product description

Facade Access Restraint Pin | GGRXTB37 Heavy-Duty Alignment Pin
The Groxx Restraint Pin (GGRXTB37) is a precision-engineered 3/8 inch structural positioning and restraint component designed for reliable load containment across facade systems, curtain walls, and industrial temporary fixtures. Manufactured with exact dimensional tolerances and a multi-axis bail assembly, the GGRXTB37 ensures uniform force distribution and consistent mechanical engagement.
Core Performance & Design
  • Multi-Directional Load Capability: Engineered to maintain structural integrity under axial and off-axis vector loading, providing identical maximum force containment across primary loading planes (F1, F2, and F3).
  • Precision Machined Tolerance: Features a tightly controlled shank diameter of 0.3735 inches (with a tolerance of plus 0.000 inches to minus 0.002 inches) to ensure zero-play insertion into critical structural receivers.
  • Integrated Swivel Anchor Loop: Fitted with an articulated shackle bow for seamless connection to lanyards, rigging hardware, or tie-off assemblies.
  • Heavy-Duty Retention Mechanism: Built with lower engagement detents/pins to lock the unit securely in place once passed through the substrate.
Technical Specifications
Feature Specification
Model Number
GGRXTB37
Nominal Size
3/8 inch
Pin Diameter (Diameter A)
0.3735 inches (plus 0.000 in / minus 0.002 in)
Bushing Outer Diameter (B)
0.440 inches (plus 0.005 in / minus 0.005 in)
Maximum Clearance Gap (X max)
3/16 inch
Bushing Height (D)
1.46 inches
Shackle Outer Width (E)
1.20 inches
Vertical Load Capacity (F1 max)
2.7 kN
Angular Load Capacity (F2 max)
2.7 kN
Lateral Load Capacity (F3 max)
2.7 kN
Available Grip Length Options
Part Variant Grip Length (C) Total Shank Clearance Tolerance
GGRXTB37-075
1.00 inch
plus 0.030 in / minus 0.000 in
GGRXTB37-100
1.50 inches
plus 0.030 in / minus 0.000 in
GGRXTB37-200
2.00 inches
plus 0.030 in / minus 0.000 in
GGRXTB37-300
3.00 inches
plus 0.030 in / minus 0.000 in
Installation & Loading Profile
  • 3-Axis Force Containment:
    • F1 (Pure Tension / Axial Pull): Rated up to 2.7 kN.
    • F2 (45-Degree Angular Tension): Rated up to 2.7 kN.
    • F3 (90-Degree Shear / Lateral Loading): Rated up to 2.7 kN.
  • Maximum Standoff Gap: To maintain the rated 2.7 kN load rating, the structural gap (X max) between the bushing base and receiver plate must not exceed 3/16 inch.
The Groxx Advantage
The GGRXTB37 Restraint Pin combines precision machining with multi-axis load capability. By maintaining a full 2.7 kN rating across direct tension, angular pull, and pure shear vectors, Groxx provides a fail-safe alignment solution that simplifies field rigging while eliminating multi-directional load penalties.

Downloads and manuals

PDF Data Sheet

Related products

0 Cart