What is the main difference between weld-on and bolt-on gate hinges?

Weld-on hinges are permanently welded to the gate frame and post, creating a high-strength connection that cannot be removed without cutting. Bolt-on hinges use bolts and nuts for attachment, allowing the gate to be removed for maintenance. Weld-on hinges are preferred for heavy-duty steel gates (500kg+) and high-security applications. Bolt-on hinges are preferred for gates that need to be removed periodically.

When should I use weld-on hinges instead of bolt-on hinges?

Use weld-on hinges when: the gate is heavy (over 200kg per leaf); the gate is for high-security or commercial applications; the gate frame is steel tube or flat bar; the gate will not need to be removed regularly. Use bolt-on hinges when: the gate needs to be removed for maintenance; the post is masonry, timber, or aluminium (cannot be welded); the installation requires adjustability after fitting.

What load capacity do weld-on gate hinges support?

HST Hardware's bearing weld-on hinges (BH1+BH2, BH7) support gates up to 300–500 kg per pair. Heavy-duty flag hinges (H2-66×100, H2-200×140) are rated for gates up to 800 kg per pair. For gates exceeding 800 kg, use 3 or 4 hinges per gate leaf.

Weld-On vs Bolt-On Gate Hinges: Which Is Right for Your Project?

Published: 5 June 2026 | Category: Technical Guide | Author: HST Hardware

Gate hinges are among the most mechanically stressed components in any gate system. They bear the full weight of the gate leaf, absorb wind and impact loads, and must operate reliably for decades with minimal maintenance. Choosing the wrong hinge type leads to gate sag, binding, premature wear, and in extreme cases, complete hinge failure.

What Are Weld-On Gate Hinges?

Weld-on hinges (also called weldable hinges or weld hinges) are designed to be permanently attached to the gate frame and post by welding. The hinge plates are welded directly to the steel tube or flat bar of the gate frame, creating a connection that is as strong as the base material itself. Weld-on hinges are available in several styles: flag hinges (H2-66×100, H2-200×140) for heavy-duty commercial and farm gates; bearing weld-on hinges (BH1+BH2, BH7) for smooth residential operation; and combination weld-on/bolt-on hinges (H3-83×104) that allow gate removal without cutting.

What Are Bolt-On Gate Hinges?

Bolt-on hinges (also called screw-on hinges or weld-on/bolt-on combination hinges) are attached to the gate frame and post using bolts and nuts. They allow the gate to be removed for maintenance without cutting. Bolt-on hinges are preferred for gates that need to be removed periodically, or for posts made of masonry, timber, or aluminium that cannot be welded.

Key Comparison: Weld-On vs Bolt-On

Load capacity: Weld-on hinges support up to 800 kg per pair (H2 series). Bolt-on hinges typically support up to 300 kg per pair.
Installation: Weld-on requires welding equipment. Bolt-on requires only a drill and spanners.
Removability: Weld-on hinges are permanent. Bolt-on hinges allow gate removal.
Applications: Weld-on for heavy steel gates, farm gates, commercial security gates. Bolt-on for residential gates, timber posts, aluminium frames.

HST Hardware Weld-On Hinge Range

HST Hardware manufactures weld-on gate hinges in carbon steel Q235/Q345. Available surface treatments: hot-dip galvanised (HDG), powder coat, zinc electroplated. MOQ: 300–1,000 pairs. OEM/ODM accepted. View Weld-On Gate Hinges range or contact us for a free quote.