5/16"-18 x 5/8" Zinc Plated Steel Coarse Thread Brad Hole Tee Nuts (12 pcs.)

Diameter: 5/16"
Length: 5/8"
Material: Steel
Finish: Zinc
Drill Size: 25/64"
Thread Size: 18 (Coarse)
Shape: Round
Style: Brad Hole
Type: Tee Nut

Box of 12.

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