POWERED BY R&P CARRIAGES

Need A Trailer Part

3/8" Bolt On D Ring, 1 Hole, 2.4K Rated (Multipack of 8) (B21-8)

$21.33
Contact us for availability

Enter the quantity you need to check availability.

Not Sure It Fits? Ask a Pro
R&P PARTS GUIDE

At a Glance

  • SKU: B21-8
PRODUCT INFORMATION

Product Details

3/8" Bolt-On D-Ring – 1 Hole – 2,400 lb Capacity – Multi-Pack of 8 (B21-8)

Heavy-duty steel D-rings designed for secure cargo tie-downs on trailers, trucks, and utility haulers — 3/8" thick, single-hole mount, and rated at 2,400 lbs each.


Product Overview

The B21-8 Bolt-On D-Ring Kit includes eight heavy-duty forged steel tie-down rings for secure cargo restraint on flatbeds, utility trailers, and enclosed haulers. Each D-ring features a 3/8? thick steel loop with a single-bolt mounting design for quick installation on wood or steel surfaces. Rated for up to 2,400 lbs working load each, these rings deliver durable, long-term performance for professional or recreational use.


Features

  • Forged steel construction for maximum strength
  • Single-hole bolt-on mount for easy installation
  • 2,400 lb working load limit per ring
  • Ideal for cargo trailers, utility haulers, and truck beds
  • Protective zinc-plated finish resists corrosion
  • Includes eight D-rings per pack

Specifications

  • Part Number: B21-8
  • Material: Forged Steel
  • Mount Type: 1 Hole Bolt-On
  • Thickness: 3/8"
  • Finish: Zinc-Plated
  • Working Load Limit: 2,400 lbs (each)
  • Quantity: 8 per pack

Compatibility

  • Works with most trailers, trucks, and utility beds
  • Mounts to wood, steel, or aluminum frames
  • Compatible with standard cargo straps and tie-down hooks

Note: Always verify working load ratings and fastener strength for safe cargo securement. Mounting hardware not included.

Related Parts & Kits

Check fitment, measurements, and kit contents before ordering. Related parts may not be required for your repair.
Looking up part numbers in our catalog…
Your repair list1 item selected

Selected products are added together. Review the cart and verify kit contents to prevent duplicates. Prices and discounts are determined at checkout.

BEHIND THIS LISTING
PHOTOGRAPHY & RESEARCH Ariah Granados Ariah’s handwritten signature
DIGITAL PRESENTATION & DEVELOPMENT Ken Martin Ken’s handwritten signature
ONLINE SALES & QUALITY ASSURANCE Rayn Fisher
WE’RE HERE TO HELP

Not sure it fits?

Have your SKU or manufacturer part number, photos of the original part and mounting, and any critical measurements ready. Capacity, voltage, or bolt pattern can help too.

815-357-3292  ·  270 E Jackson St  ·  Seneca, IL 61360

CUSTOMER REVIEWS

Good people. Real trailer work.

Customer feedback summarized from Google and Yellow Pages. Dates are shown where available.

Leave a Google review
TRAILER PARTSGOOGLE

Ordered trailer repair parts repeatedly; praised fast service, careful packing, and accurate orders.

Luke HeiserOCT 2026
RV KEYSGOOGLE

Found the correct RV keys at a good price with free shipping; the keys worked as expected.

Vanessa ROCT 2026
AXLE & LEAF SPRINGSGOOGLE

Needed an unusual axle and leaf-spring size; the team listened and helped him sort out the fit.

Cory StrubertOCT 2026
Showing 3 of 50

Need help with this part? Send photos, part numbers, and measurements. We’ll help you narrow it down.