Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

80/20 Inside Corner Bracket: Inside-Corner Bracket, 15 Series, 3 in x 2 13/16 in x 3 in - Inside Corner Brackets
80/20Inside Corner Brackets

80/20 Inside Corner Bracket: Inside-Corner Bracket, 15 Series, 3 in x 2 13/16 in x 3 in

The 80/20 Inside Corner Bracket (MPN 4304-BLACK) is an aluminum, anodized inside corner bracket for 15 Series framing. It measures 3 in x 2 13/16 in x 3 in and features 8 holes. This black-finished bracket is…

SKU 3G-OTH-348303

Also listed as: 4304BLACK · 4304 BLACK

Brand
80/20
Item
Inside Corner Bracket: Inside-Corner Bracket, 15 Series, 3 in x 2 13/16 in x 3 in
Category
Inside Corner Brackets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

80/20
Manufacturer Part Number
4304-BLACK
Series
15
Type
3 in x 2 13/16 in x 3 in, Black
Material
Aluminum
Holes
8
Finish
Anodized

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

80/20 Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The 80/20 Inside Corner Bracket (MPN 4304-BLACK) is an aluminum, anodized inside corner bracket for 15 Series framing. It measures 3 in x 2 13/16 in x 3 in and features 8 holes. This black-finished bracket is designed for structural corner connections in industrial framing systems.

Frequently Asked Questions

What is the 80/20 Inside Corner Bracket used for?

The 80/20 Inside Corner Bracket (MPN 4304-BLACK) is used to create rigid 90-degree inside corner connections in 15 Series aluminum framing structures. It is commonly applied in industrial machine guards, workstations, conveyors, and automation frames where structural integrity and alignment are required.

What are the specifications of the 80/20 Inside Corner Bracket?

The 80/20 Inside Corner Bracket (MPN 4304-BLACK) is made of anodized aluminum for the 15 Series. It measures 3 in x 2 13/16 in x 3 in and has 8 holes for fastening. The black finish provides corrosion resistance. This bracket is designed for inside corner joints in structural framing systems.

Where to buy the 80/20 Inside Corner Bracket worldwide?

You can source the 80/20 Inside Corner Bracket (MPN 4304-BLACK) through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this 15 Series anodized aluminum bracket.

How to install the 80/20 Inside Corner Bracket?

To install the 80/20 Inside Corner Bracket, align it inside the corner of two 15 Series profiles. Insert fasteners through the 8 holes and tighten to the recommended torque for 80/20 T-slot framing. Use a square to ensure a 90-degree angle before final tightening. Always follow standard industrial framing assembly practices.

80/20 Products

3G Electric supplies 80/20 inside corner brackets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Inside Corner Bracket: Inside-Corner Bracket, 15 Series, 1 1/2 in x 1 5/16 in x 1 1/2 in, 2 Holes (MPN 4302-BLACK)
80/20
Inside Corner Bracket: Inside-Corner Bracket, 15 Series, 1 1/2 in x 1 5/16 in x 1 1/2 in, 2 Holes (MPN 4302-BLACK)
Inside Corner Bracket: Wide Inside-Corner Bracket, 15 Series, 1 1/2 in x 2 13/16 in x 3 in, 6 Holes (MPN 4375-BLACK)
80/20
Inside Corner Bracket: Wide Inside-Corner Bracket, 15 Series, 1 1/2 in x 2 13/16 in x 3 in, 6 Holes (MPN 4375-BLACK)
Inside Corner Bracket: Wide Inside-Corner Bracket, 15 Series, 1 1/2 in x 2 13/16 in x 1 1/2 in (MPN 4303-BLACK)
80/20
Inside Corner Bracket: Wide Inside-Corner Bracket, 15 Series, 1 1/2 in x 2 13/16 in x 1 1/2 in (MPN 4303-BLACK)
Inside Corner Bracket: Slotted Inside-Corner Bracket, 10 Series, 1 in x 7/8 in x 1 in, 2 Holes (MPN 4265-BLACK)
80/20
Inside Corner Bracket: Slotted Inside-Corner Bracket, 10 Series, 1 in x 7/8 in x 1 in, 2 Holes (MPN 4265-BLACK)
Inside Corner Bracket: Gusseted Inside-Corner Bracket, 15 Series, 3 in x 2 13/16 in x 3 in, 8 Holes (MPN 4338-BLACK)
80/20
Inside Corner Bracket: Gusseted Inside-Corner Bracket, 15 Series, 3 in x 2 13/16 in x 3 in, 8 Holes (MPN 4338-BLACK)
Inside Corner Bracket: Tall Gusseted Inside-Corner Bracket, 15 Series, 3 in x 1 5/16 in x 3 in (MPN 4336-BLACK)
80/20
Inside Corner Bracket: Tall Gusseted Inside-Corner Bracket, 15 Series, 3 in x 1 5/16 in x 3 in (MPN 4336-BLACK)

More from 80/20

View all 80/20 parts
Inside Corner Bracket: Slotted Inside-Corner Bracket with Dual Support, 30 Series, 2 Holes, Gray (MPN 14073)
80/20
Inside Corner Bracket: Slotted Inside-Corner Bracket with Dual Support, 30 Series, 2 Holes, Gray (MPN 14073)
Inside Corner Bracket: Tall Inside-Corner Bracket, 15 Series, 3 in x 1 5/16 in x 3 in, 4 Holes (MPN 4301)
80/20
Inside Corner Bracket: Tall Inside-Corner Bracket, 15 Series, 3 in x 1 5/16 in x 3 in, 4 Holes (MPN 4301)
Inside Corner Bracket: Tall Inside-Corner Bracket, 10 Series, 2 in x 7/8 in x 2 in, 4 Holes, Silver (MPN 4115)
80/20
Inside Corner Bracket: Tall Inside-Corner Bracket, 10 Series, 2 in x 7/8 in x 2 in, 4 Holes, Silver (MPN 4115)
Inside Corner Bracket: Inside-Corner Bracket, 40 Series, 80 mm x 76 mm x 80 mm, 8 Holes, Silver (MPN 40-4304)
80/20
Inside Corner Bracket: Inside-Corner Bracket, 40 Series, 80 mm x 76 mm x 80 mm, 8 Holes, Silver (MPN 40-4304)
Inside Corner Bracket: Wide Inside-Corner Bracket, 15 Series, 1 1/2 in x 2 13/16 in x 1 1/2 in (MPN 4303)
80/20
Inside Corner Bracket: Wide Inside-Corner Bracket, 15 Series, 1 1/2 in x 2 13/16 in x 1 1/2 in (MPN 4303)
Inside Corner Bracket: Slotted Inside-Corner Bracket, 15 Series, 1 1/2 in x 1 5/16 in x 1 1/2 in (MPN 4295-BLACK)
80/20
Inside Corner Bracket: Slotted Inside-Corner Bracket, 15 Series, 1 1/2 in x 1 5/16 in x 1 1/2 in (MPN 4295-BLACK)
Inside Corner Bracket: Tall Inside-Corner Bracket, 15 Series, 3 in x 1 5/16 in x 3 in, 4 Holes (MPN 4301-BLACK)
80/20
Inside Corner Bracket: Tall Inside-Corner Bracket, 15 Series, 3 in x 1 5/16 in x 3 in, 4 Holes (MPN 4301-BLACK)
Inside Corner Bracket: Wide Inside-Corner Bracket, 40 Series, 40 mm x 76 mm x 40 mm, 4 Holes, Silver (MPN 40-4303)
80/20
Inside Corner Bracket: Wide Inside-Corner Bracket, 40 Series, 40 mm x 76 mm x 40 mm, 4 Holes, Silver (MPN 40-4303)