210mm Galvanised Eccentric Lock Clasp

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

Commercial-Grade ERA 210mm Weather-Resistant Over-Center Lever Clasp with Base Plate for Trailer Tailgates, Caravan Drop Sides & Truck Side Walls | Direct Factory OEM & Bulk Supply

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.

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Q1: What is the main function of an eccentric lock clasp on utility trailers and trucks?

A: An eccentric lock (also known as an over-center tension latch) uses a cam lever mechanism to exert high clamping tension on trailer drop-side panels and tailgates, pulling them tight against rubber seals and frame posts to prevent rattling, cargo shifting, and accidental opening while driving.

Q2: Can this 210mm eccentric clasp be mounted on aluminum trailer side panels?

A: Yes. The included mounting plate can be bolted or fastened with heavy-duty structural pop rivets directly onto extruded aluminum dropsides, timber boards, or fabricated steel posts.

Q3: Is the galvanised steel finish suitable for marine boat trailers and outdoor winter fleets?

A: Absolutely. The heavy galvanised zinc coating forms a sacrificial barrier that repels moisture, saltwater spray, and winter de-icing chemicals, preventing rust and seized pivot pins.

Q4: Does the clasp remain locked over bumpy off-road tracks and washboard roads?

A: Yes. The geometry is specifically engineered so that tension pulls the lever firmly inward once engaged beyond center, ensuring vibrations and chassis flex only hold the latch more tightly in the locked position.

Q5: What OEM and wholesale customization options are provided by ERA for vehicle bodybuilders?

A: ERA provides comprehensive B2B supply solutions, including matched receiver catch hooks, custom mounting hole spacings, optional padlocking holes or safety catches, vinyl dipped handles, and bulk container-load master cartons.

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