Also known as flat-head Type 21 screws, these fasteners drive like nails but hold with screwlike strength. The zinc-plated finish provides rust resistance. Use them in drilled and punched holes. The hole size should be slightly smaller than the shank diameter.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Lg. Gauge Shank

Dia. Head

Dia. Head

Type Shank

Type Pkg.

Qty. Pkg.

Zinc-Plated Steel

3/8" 12 0.11" 1/4" Flat Screw 100 90085A110 $8.33

7/16" 10 0.14" 5/16" Flat Screw 100 90085A210 9.24

7/16" 8 0.16" 5/16" Flat Screw 100 90085A310 10.09

1/2" 7 0.18" 5/16" Flat Screw 100 90085A410 11.96