EC300 Replacement Screw & Hardware Kit

EC300 Replacement Accessory

EC300 Replacement Screw & Hardware Kit

A complete replacement hardware set designed for the ProtoArc EC300 Ergonomic Office Chair, including the essential screws and T-handle Allen wrench used for chair assembly and hardware replacement.

What's Included

The kit includes the replacement screws required for the main EC300 chair components.

G1 Five-Star Base Screws M8×16 · 5PCS G2-Long Armrest Screws 1/4×60 · 2PCS G2-Short Armrest Screws 1/4×50 · 4PCS G3 Tilt Mechanism Screws M8×35 · 4PCS G4 Lumbar Support Screws ST6×20 · 3PCS G5 Backrest Screws M8×20 · 3PCS G6 Headrest Screws M5×16 · 2PCS T-Handle Allen Wrench 1PC Package Contents: 23 Replacement Screws + 1 T-Handle Allen Wrench

Compatibility

This replacement hardware kit is designed specifically for the ProtoArc EC300 Ergonomic Office Chair.

Please confirm that your chair model is EC300 before placing your order. Compatibility with other ProtoArc models or third-party chairs is not guaranteed.

View EC300 Chair View EC300 User Manual

Before You Order

• Please confirm that your chair model is EC300 before purchasing.
• Check the EC300 User Manual to identify the screw type and installation location you need.
• This listing includes replacement screws and the T-handle Allen wrench only. Other chair components are not included.
• If you are unsure whether this hardware kit is suitable for your chair, please contact ProtoArc Customer Support before placing your order.

Final Sale Notice

This replacement hardware kit is a final-sale accessory and is not eligible for returns or exchanges, except where required by applicable law.

Please carefully confirm your chair model and the replacement hardware you need before purchasing.

Need Help?

Questions about compatibility, missing hardware, installation, or replacement parts? Our support team is here to help.

[email protected]