Diameter: #10
Length: 7/16"
Material: Steel
Finish: Zinc
Drill Size: 15/64"
Thread Size: 24 (Coarse)
Shape: Round
Style: Long Pronged
Type: Tee Nut
Prongs: 3

Box of 12.

Tee nuts are generally used in soft wood to provide a stronger surface for a screw or bolt to mount into.