With a head one and a half times taller than a standard socket head, these screws are easier to install in deep counterbored holes and other hard-to-reach places. They're made from 18-8 stainless steel, which has good chemical resistance and may be mildly magnetic. Length is measured from under the head.

Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Fine threads are closely spaced to prevent loosening from vibration. They are not compatible with coarse threads.

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

Head

Lg. Threading Thread

Spacing Dia. Ht. Drive

Size Tensile

Strength, psi Pkg.

Qty. Pkg.

18-8 Stainless Steel

2-56

1/4" Fully Threaded Coarse 9/64" 0.129" 5/64" 70,000 5 90332A110 $10.46

4-40

1/4" Fully Threaded Coarse 0.183" 0.168" 3/32" 70,000 5 90332A111 10.51

5/16" Fully Threaded Coarse 0.183" 0.168" 3/32" 70,000 5 90332A112 11.56

3/8" Fully Threaded Coarse 0.183" 0.168" 3/32" 70,000 5 90332A113 11.62

1/2" Fully Threaded Coarse 0.183" 0.168" 3/32" 70,000 5 90332A114 12.74

6-32

1/4" Fully Threaded Coarse 0.226" 0.207" 7/64" 70,000 5 90332A115 11.57

3/8" Fully Threaded Coarse 0.226" 0.207" 7/64" 70,000 5 90332A116 11.71

1/2" Fully Threaded Coarse 0.226" 0.207" 7/64" 70,000 5 90332A117 11.84

5/8" Fully Threaded Coarse 0.226" 0.207" 7/64" 70,000 5 90332A118 12.97

3/4" Fully Threaded Coarse 0.226" 0.207" 7/64" 70,000 5 90332A119 13.10

8-32

3/8" Fully Threaded Coarse 0.27" 0.246" 9/64" 70,000 5 90332A120 12.36

1/2" Fully Threaded Coarse 0.27" 0.246" 9/64" 70,000 5 90332A121 12.60

5/8" Fully Threaded Coarse 0.27" 0.246" 9/64" 70,000 5 90332A122 13.83

3/4" Fully Threaded Coarse 0.27" 0.246" 9/64" 70,000 5 90332A123 14.06

1" Fully Threaded Coarse 0.27" 0.246" 9/64" 70,000 1 90332A124 3.11

10-32

3/8" Fully Threaded Fine 5/16" 0.285" 5/32" 70,000 5 90332A125 12.43

1/2" Fully Threaded Fine 5/16" 0.285" 5/32" 70,000 5 90332A126 12.67

5/8" Fully Threaded Fine 5/16" 0.285" 5/32" 70,000 5 90332A127 12.90

3/4" Fully Threaded Fine 5/16" 0.285" 5/32" 70,000 5 90332A128 14.14

1" Fully Threaded Fine 5/16" 0.285" 5/32" 70,000 5 90332A129 14.60

1/4"-20

3/8" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 5 90332A130 13.33

1/2" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 5 90332A131 13.66

5/8" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 5 90332A132 15.00

3/4" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 1 90332A133 3.06

7/8" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 1 90332A134 3.33

1" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 1 90332A135 3.40

1 1/4" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 1 90332A136 3.94

1 1/2" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 1 90332A137 4.07

2" Fully Threaded Coarse 3/8" 3/8" 3/16" 70,000 1 90332A138 4.54

5/16"-18

3/4" Fully Threaded Coarse 15/32" 15/32" 1/4" 70,000 1 90332A139 3.92

1" Fully Threaded Coarse 15/32" 15/32" 1/4" 70,000 1 90332A140 4.36

3/8"-16

1" Fully Threaded Coarse 9/16" 9/16" 5/16" 70,000 1 90332A141 4.85