Labeled inside and out · hex keys in the lid · threads cut to the metric standard
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120-Piece 1/4-20 Threaded Insert Kit for Wood by Hapric
120-Piece 1/4-20 Threaded Insert Kit for Wood, view 2120-Piece 1/4-20 Threaded Insert Kit for Wood, view 3120-Piece 1/4-20 Threaded Insert Kit for Wood, view 4120-Piece 1/4-20 Threaded Insert Kit for Wood, view 5
Threaded Inserts

120-Piece 1/4-20 Threaded Insert Kit for Wood

$15.99

★★★★★ 4.6 out of 5 · 200 ratings

Sixty complete sets for the chair that wobbles and the bed rail that keeps loosening: a 1/4-20 x 15 mm knurled steel insert, a hex nut and two bolt lengths for each. The insert bites into pine, plywood or MDF once and gives the bolt a metal thread for the rest of the furniture's life.

  • 60 inserts (1/4-20 x 15 mm), 40 bolts 1/4-20 x 3/4", 20 bolts 1/4-20 x 1-1/4", hex wrenches
  • Zinc-plated steel inserts, 12.9 alloy bolts
  • External knurl grips the wood, internal thread stays smooth
  • Labeled case with both bolt lengths in their own slots
Shop 120-Piece 1/4-20 Threaded Insert Kit for Wood

Price and stock are shown on the partner store page that opens from the button.

Specifications
MaterialZinc-plated steel inserts, 12.9 bolts
Pieces120
Thread1/4-20
Included2 hex wrenches, labeled case

Reaches for it

Chairs, beds and sofa framesShelving and cabinetsSpeaker boxes and mounts

What is in the case

Kit contents by size
1/4-20 × 15 mm inserts (10.5 mm outer diameter)60
1/4-20 × 3/4" (22 mm) button-head bolts40
1/4-20 × 1-1/4" (35 mm) button-head bolts20
Hex keys2
Labeled inside and on the lid, thick fixed dividers, threads cut to the metric standard. Returns and replacements run through the order page of the partner store.
At the counter

Questions about this kit

Why two bolt lengths?

3/4 inch for a panel bolted flat to the insert, 1-1/4 inch where a leg plate or a second panel adds thickness.

How big is the insert?

10.5 mm outer diameter and 14.8 mm long; drill a 9.5 to 10 mm pilot in softwood.

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