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Manual Mechanism w/ large bell 6 1/2" W x 17 1/2" screw to screw
Bulk-buy M4 Steel Hex Allen Button Head Socket Cap Screws for Office Chair price comparison
Office chair was missing screws. I feel stupid for asking, but are Serta screws standard, or proprietary? : r/DIY
Amazon.com: AAGUT Office Chair Armrest Replacement Arm Pads Caps Universal 4" Mounting Hole PU Office Chair Parts 1 Pair (Black, Set of 2) with Screws and Wrench : Office Products
Office Chair, High Back Ergonomic Mesh Desk Office Chair with Padding – BWICR
1pcs M16 corrugated handle Decorative Plastic Head Hand Screws Tightening Knob Screw Office furniture bolts 30 50mm length|Screws| - AliExpress