Heavy-duty safety chain with multiple oval-shaped metal links and a clevis grab hook attached at one end. The chain is zinc-plated and measures 3/8" x 37", designed for trailer tethering and rated to 26,400 lbs. The hook includes a latch mechanism for secure attachment to towing hardware. Suitable for industrial and transportation applications requiring high-strength trailer safety connections.
C. R. Brophy Machine Works

Brophy Towing Chain HL45 3/8 Inch Grade 70 Steel Link (37 Inch Trailer Safety Tether Forged Clevis Hook 26400 lbs Capacity DOT Zinc Plated)

In stock
SKU: HL45
$19.99 USD

Description

Brophy HL45 Grade 70 3/8" x 37" Heavy-Duty Trailer Safety Chain

The C.R. Brophy HL45 heavy-duty trailer safety chain delivers certified secondary connection security up to an industrial 26,400-lb minimum breaking strength. Constructed from 0.375-inch (3/8") heat-treated Grade 70 transport alloy steel with a pre-attached forged clevis grab hook, this 37-inch tether prevents runaway trailer accidents in the event of coupler separation. Engineered to meet strict DOT highway compliance standards for commercial haulers, equipment trailers, and RV rigs, its corrosion-resistant zinc-plated finish ensures long-term operational durability under harsh road and weather conditions.

Best Used For:

  • Commercial Trailer Towing: Providing mandatory secondary safety tethering on heavy tandem-axle equipment trailers, dump trailers, and flatbed haulers.
  • DOT Safety Compliance: Upgrading agricultural, industrial, and fleet towing setups to meet legal Department of Transportation Grade 70 chain standards.
  • High-Capacity RV Transport: Securing fifth-wheel trailers, goosenecks, and heavy travel campers to vehicle receiver loops against unexpected hitch disconnects.

Key Performance & Safety Features

  • Grade 70 Transport Alloy Steel: Delivers superior strength-to-weight performance and exceptional tensile resistance under shock load conditions.
  • 26,400-lb Maximum Breaking Strength: Engineered to provide reliable retention capacity for heavy-duty commercial and industrial towing setups.
  • Pre-Attached Forged Hook: Features a rugged forged steel hook that anchors securely into vehicle hitch safety loops and chassis brackets.
  • Corrosion-Resistant Zinc Plating: Electroplated zinc coating shields the steel chain links against road salt, oxidation, grime, and moisture.
  • DOT Highway Compliance: Meets federal and state legal requirements for secondary trailer safety connection systems.
  • Compact 37-Inch Length: Offers ideal working slack for tight articulation without excessive drooping or ground dragging.

What's Included

  • (1) C.R. Brophy HL45 Grade 70 Safety Chain – 3/8" x 37"
  • (1) Forged Steel Hook (pre-attached)

Technical Specifications

Brand C.R. Brophy Machine Works
Model Number HL45
Product Type Heavy-Duty Trailer Safety Chain with Hook
Material Grade Grade 70 Transport Alloy Steel
Chain Trade Size 3/8 inch (0.375 in / 9.5 mm)
Overall Length 37.0 inches (939.8 mm)
Maximum Breaking Strength 26,400 lbs
Surface Finish Electroplated Zinc Plating
Attachment Hardware Pre-Attached Forged Steel Clevis Hook
Legal Compliance DOT Highway Safety Regulations Compliant
Primary Application Trailer Safety Tethering (Not for Overhead Lifting)
Packaging Quantity Sold Individually (1 Chain per Unit)

Pro-Tip: Always cross your safety chains beneath the trailer tongue when hooking up to form a supportive cradle that catches the coupler and keeps it off the pavement if the hitch disconnects.