Tighten these screws by turning them to the left; once fastened, they prevent loosening from counterclockwise motion. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. All are passivated for added protection against oxidation and corrosion. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.

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

Lg. Threading Head

Dia. Head Ht. Drive

Size Tensile

Strength, psi Pkg.

Qty. Pkg.

18-8 Stainless Steel

4-40

1/4" Fully Threaded 0.255" 0.083" 1/16" 70,000 5 91512A110 $8.35

1/2" Fully Threaded 0.255" 0.083" 1/16" 70,000 5 91512A120 11.09

6-32

1/4" Fully Threaded 0.307" 0.097" 5/64" 70,000 5 91512A130 8.58

1/2" Fully Threaded 0.307" 0.097" 5/64" 70,000 5 91512A140 9.62

8-32

1/2" Fully Threaded 0.359" 0.112" 3/32" 70,000 5 91512A150 10.54

3/4" Fully Threaded 0.359" 0.112" 3/32" 70,000 5 91512A160 13.21

10-32

1/2" Fully Threaded 0.411" 0.127" 1/8" 70,000 1 91512A170 2.54

3/4" Fully Threaded 0.411" 0.127" 1/8" 70,000 1 91512A180 2.84

1/4"-20

1/2" Fully Threaded 0.531" 0.161" 5/32" 70,000 1 91512A190 3.01

1" Fully Threaded 0.531" 0.161" 5/32" 70,000 1 91512A210 3.52