# 81100 ERA 210mm Galvanised Steel Eccentric Lock with Mounting Plate – Heavy-Duty Trailer Side Wall Tension Clasp Wholesale

- Link: https://www.eravehicle.com/?products=81100-2
- Published: 2026-05-25T10:35:00+08:00
- Author: admin

|  **Technical Specification** |  **Parameters & Engineering Details** |  
   |  Brand Name |  ERA |  
 |  Product Type |  Heavy-Duty Eccentric Lock / Over-Center Tension Clasp / Lever Fastener |  
 |  Overall Length (Size) |  210mm (Approx. 8.27 Inches) Total Reach |  
 |  Net Weight |  230g Lightweight High-Strength Construction |  
 |  Material Composition |  Heavy-Gauge Stamped Structural Carbon Steel |  
 |  Surface Protection |  Hot-Dip Galvanised / Heavy Zinc-Plated Weather-Resistant Finish |  
 |  Included Components |  1 Eccentric Lever Clasp, 1 Integrated Pre-Drilled Mounting Base Plate |  
 |  Clamping Mechanism |  Mechanical Over-Center Eccentric Cam Action for High Clamping Force |  
 |  Operation Style |  Ergonomic One-Handed Smooth Lever Action |  
 |  Mounting Configuration |  Multi-Hole Pre-Punched Base Flange for Bolt-On or Rivet Attachment |  
 |  Anti-Vibration Security |  Positive Over-Center Lock Geometry (Resists Accidental Opening on Rough Roads) |  
 |  Target Applications |  Box Trailers, Caravans, Dropside Trucks, Horse Floats, Commercial Vehicle Side Walls |  
 |  B2B Supply Capabilities |  Custom Catch Plate Options, Rubber Handle Sleeves, Pallet Export Packaging |

**Key Features**

 * Positive Over-Center Locking Geometry: Features a precision eccentric cam mechanism
   that pulls side walls and tailgates tight, locking securely past the center point
   to eliminate road rattle and prevent unlatching under heavy chassis vibration.
 * Robust 210mm Reach Profile: Provides an extended 210mm clamping arm reach to 
   bridge gaps across drop-side panels, trailer tailgates, and coaming rails with
   ample mechanical advantage.
 * Galvanised Weather-Resistant Armor: Coated in a heavy protective zinc layer that
   withstands corrosive road salt, rainwater, mud spray, and harsh coastal humidity
   without rusting.
 * Lightweight 230g Structural Design: Engineered with high strength-to-weight optimization,
   delivering rigid, deformation-resistant clamping power without adding unnecessary
   deadweight to lightweight trailer dropsides.
 * Integrated Base Plate for Hassle-Free Mounting: Includes a pre-punched steel 
   mounting bracket plate that allows quick alignment and bolt-on or pop-rivet installation
   on aluminum or steel trailer side walls.
 * Effortless One-Handed Operation: The ergonomic lever arm allows operators to 
   quickly lock and release truck drop sides and utility trailer gates with smooth,
   single-motion control.