3/16" A36 Steel Triangle Gusset Plate – Select Size

3/16" Steel Triangle Gusset Plates – Precision Cut & Ready to Weld

Our 3/16" triangle gusset plates are precision CNC plasma cut from premium ASTM A36 low carbon steel and are designed to strengthen welded joints, reinforce frames, and provide additional structural support. Available in sizes from 4" to 30", these gusset plates are perfect for fabrication shops, trailer builders, agricultural equipment, structural steel projects, and DIY fabrication.

Each gusset plate is cut with precision for consistent dimensions and clean, weld-ready edges, helping you save time while achieving professional results.

Whether you're building a trailer, reinforcing equipment, fabricating brackets, or tackling a custom project, our gusset plates provide the strength and reliability you need.

Features

• Premium ASTM A36 Low Carbon Steel
• 3/16" (0.188") Thick
• Equal Leg Triangle Design
• Sizes Available from 4" to 30"
• Precision CNC Plasma Cut
• Clean, Weld-Ready Edges
• Raw Mill Finish
• Excellent Weldability
• Made in USA
• Free Shipping
• Ships in 1–5 Business Days

Specifications

Material: ASTM A36 Low Carbon Steel

Thickness: 3/16" (0.188")

Shape: Equal Leg Triangle

Available Sizes: 4"–30"

Manufacturing Process: CNC Plasma Cut

Tolerance: ±0.025"

Finish: Raw Mill Finish

Country of Origin: USA

Common Uses

• Trailer Frames
• Structural Reinforcement
• Welding Projects
• Equipment Repair
• Agricultural Equipment
• Machine Frames
• Bracing
• Off-Road Builds
• Metal Fabrication
• Custom Steel Projects

Why Buy From JWM Metal Supply?

• Precision Cut in Kansas
• Premium American Steel
• No Minimum Order
• Fast Turnaround
• Free Shipping
• Ships in 1–5 Business Days
• Bulk Pricing Available
• Family-Owned Fabrication Shop

Frequently Asked Questions

Are these gusset plates weldable?
Yes. ASTM A36 low carbon steel is ideal for MIG, TIG, and Stick welding.

Do the edges require grinding before welding?
Most customers can weld them as received, though light cleanup can be performed if desired for your application.

Can I order large quantities?
Yes! Contact us for bulk pricing on production orders.

What finish do they have?
They are supplied with a raw mill finish.