1/4-20 Threaded Insert for Wood Kit with screw in insert nuts, 150 piece assortment includes 10mm 15mm and 20mm lengths, hex drive design for easy install, strong internal threads for furniture, cabinets and woodworking projects

Threaded Insert for Wood 1/4-20 Screw In Insert Nut Kit 150 Pieces
✔️ Hex Drive Wood Inserts 10mm 15mm 20mm for Furniture and Woodworking

This threaded insert kit is made for creating strong, reusable internal threads in wood and composite materials. It’s commonly used in furniture building, cabinet work, jigs, fixtures, and repair jobs where machine screws need a solid hold in wood.

✅ Pack size includes 150 threaded inserts plus 1 hex key
✅ Internal thread size 1/4-20 UNC for standard machine screws
✅ Includes three insert lengths for flexible mounting options
✅ Hex drive design allows easy, controlled installation
✅ Screw-in style creates a permanent, vibration-resistant thread
✅ Works with soft wood, hard wood, plywood, and composites
✅ Durable metal construction for long-term holding strength

Pack Breakdown

1/4-20 x 20 mm inserts 44 pcs
1/4-20 x 15 mm inserts 44 pcs
1/4-20 x 10 mm inserts 62 pcs
Hex key 1 pc

Dimensions and Specifications

Internal Thread Size 1/4-20 UNC
Insert Lengths 10 mm 0.39 in
15 mm 0.59 in
20 mm 0.79 in

Insert Head Diameter 11.7 mm 0.461 in
Insert Body Diameter 8.0 mm 0.315 in

Outer Thread Diameter
for 10 mm insert 9.9 mm 0.389 in
for 15 mm insert 10.4 mm 0.410 in
for 20 mm insert 10.4 mm 0.410 in

Recommended Drill Sizes

Soft Wood 8.5 mm to 9 mm
3/8 in

Hard Wood 10 mm
3/8 in

💡 Why use 1/4-20 threaded inserts for wood furniture and fixtures?
Threaded inserts are used when wood needs a durable machine-thread connection that can handle repeated assembly and disassembly.

They create strong internal threads that resist pull-out
They spread load better than wood screws in softer materials
They reduce wear when bolts are removed and reinstalled
They improve joint strength in furniture and structural builds

This kit is a handy choice when you want reliable threads in wood, clean installs with a hex drive, and multiple insert lengths ready for different furniture and woodworking jobs.