1.50 weld on concave end cap on a white background
1/8 inch dom tube cap with measurement label on a white background
Close-up of a chassis frame with a off road bumper end cap on a white background
Table comparing features and specifications of different weld on tubing end caps with tube sizes, materials, styles, constructions, weld-readiness, part numbers, and &
1.50 weld on concave end cap on a white background
1/8 inch dom tube cap with measurement label on a white background
Close-up of a chassis frame with a off road bumper end cap on a white background
Table comparing features and specifications of different weld on tubing end caps with tube sizes, materials, styles, constructions, weld-readiness, part numbers, and &

1.50" Weld On Concave Tube End Cap

F021003

$1.04
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Shipping calculated at checkout.

The 1.50" Concave Tube Cap from Wide Open Design is a clean, strong, and visually appealing way to finish the end of steel tubing. Instead of a flat plug, these caps feature a rounded, concave tip, giving your fabrication work a more refined, professional look.

Pressed from 1/8" steel, these caps are durable, weld-friendly, and perfect for capping off open DOM or HREW tubes. Whether you’re building bumpers, cages, sliders, racks, or custom tube structures, these end caps provide the polished finishing detail every fabricator needs. 

Includes: 

  • (1) 1.50" Concave Tube Cap 
Specifications
  • Tube Size: 1.50" OD
  • Material: 1/8" Steel
  • Style: Concave, rounded tip
  • Construction: Pressed steel end cap
  • Condition: Weld-ready
  • Country of Origin: Made in the USA
Fitment
  • Ideal for finishing:
  • Bumpers
  • Roll cages
  • Sliders
  • Roof racks
  • Chassis tubes
  • Any open-ended tube in off-road or custom fabrication work
Tech Insight

Concave tube caps provide a more premium finish compared to flat caps. The rounded tip prevents moisture collection at the tube end and adds strength by distributing impact loads across the cap. The pressed steel design ensures consistent sizing for a perfect weld fit every time.

Feature / Spec 1.25" Concave Tube Cap 1.50" Concave Tube Cap 1.75" Concave Tube Cap
Tube Size 1.25" OD tubing 1.50" OD tubing 1.75" OD tubing
Material 1/8" Steel 1/8" Steel 1/8" Steel
Style Concave rounded tip Concave rounded tip Concave rounded tip
Construction Pressed steel Pressed steel Pressed steel
Weld-Ready Yes Yes Yes
Part Number F021000 F021003 F021006
Made in USA Yes Yes Yes
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