We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black rubber dock bumper with three bolt holes

Value Brand

Value Brand Dock Bumper 20x4-1/2x10-1/2 In. Rubber

SKU CH-D6X9-PVSAT

Rectangular rubber dock bumper measures 20 inches high by 10-1/2 inches wide with three bolt-on mounting holes

  • Durable rubber construction withstands harsh marine environments
  • Rectangular 20 in height covers broad impact zones
  • Bolt-on mounting with three 13/16 in holes ensures secure attachment
  • 8 in on-center hole spacing simplifies alignment on dock frames
  • ZORO SELECT brand delivers reliable dock protection

Dock Bumper Dimensions

This rectangular rubber dock bumper measures 20 inches in overall height and 10 1/2 inches in overall width. The bumper itself is 20 inches high, 7 1/2 inches wide and 4 1/2 inches deep. It is designed for marine docking applications where impact protection is required. The unit mounts directly to the dock structure using bolts.

Bolt-On Mounting Upgrade

The bumper features three mounting holes with a 13/16 inch diameter spaced 8 inches on centre across the width. This pattern replaces older two-hole or weld-on styles when a more secure mechanical fastening is needed. The jump is worth it when the existing dock face is flat, sound and drilled to match the three-hole layout. No adhesive or welding is required for installation.

Pre-Installation Checks

Verify that the mounting surface can accept three bolts on an 8 inch centre spacing and that the 13/16 inch holes align with your hardware. Confirm the dock face is flat enough for the 4 1/2 inch bumper depth to sit evenly. Note the California Proposition 65 warning regarding chemicals known to cause cancer and reproductive harm before handling or installing the product.

Highlights

  • Durable rubber construction withstands harsh marine environments
  • Rectangular 20 in height covers broad impact zones
  • Bolt-on mounting with three 13/16 in holes ensures secure attachment
  • 8 in on-center hole spacing simplifies alignment on dock frames
  • ZORO SELECT brand delivers reliable dock protection

Specifications

BrandZORO SELECT

Questions about this item

What are the mounting hole dimensions and spacing for the 20-inch dock bumper?

The bumper has three bolt-on mounting holes, each 13/16 inch in diameter, spaced 8 inches on centre across the 10-1/2 inch width.

Which tools and hardware are required to bolt the bumper to a dock face?

Use 13/16 inch clearance bolts with washers and nuts; drill three holes matching the 8-inch on-centre pattern, then tighten evenly to avoid warping the rubber.

How should the rubber be inspected and when does it need replacing?

Check annually for cracks, UV hardening, or torn mounting holes; replace the bumper if the rubber loses elasticity or if any mounting hole elongates beyond 13/16 inch.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.