Screws are 18-8 stainless steel for good chemical resistance. They may be mildly magnetic. For more vibration resistance than any other socket head screw, wire these screws together through the hole in the head (wire sold separately). All screws meet ASME B18.3 and ASTM F837 for dimensional standards and material quality. 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.

Screws

Head

Stainless

Steel Wire

Lg. Threading Min.

Thread Lg. Thread

Spacing Dia. Ht. Hole

Dia. Drive

Size Tensile

Strength, psi Specifications Met Pkg.

Qty. Pkg. Each

18-8 Stainless Steel

2-56

1/8" Fully Threaded __ Coarse 9/64" 0.086" 0.031" 5/64" 80,000 ASME B18.3, ASTM F837 5 90152A121 $9.43 8860K11 $13.55

3/16" Fully Threaded __ Coarse 9/64" 0.086" 0.031" 5/64" 80,000 ASME B18.3, ASTM F837 5 90152A122 9.05 8860K11 13.55

1/4" Fully Threaded __ Coarse 9/64" 0.086" 0.031" 5/64" 80,000 ASME B18.3, ASTM F837 5 90152A123 8.47 8860K11 13.55

3/8" Fully Threaded __ Coarse 9/64" 0.086" 0.031" 5/64" 80,000 ASME B18.3, ASTM F837 5 90152A124 8.67 8860K11 13.55

1/2" Fully Threaded __ Coarse 9/64" 0.086" 0.031" 5/64" 80,000 ASME B18.3, ASTM F837 5 90152A125 8.85 8860K11 13.55

4-40

1/8" Fully Threaded __ Coarse 0.183" 0.112" 0.036" 3/32" 80,000 ASME B18.3, ASTM F837 5 90152A101 8.47 8860K12 12.61

3/16" Fully Threaded __ Coarse 0.183" 0.112" 0.036" 3/32" 80,000 ASME B18.3, ASTM F837 5 90152A111 8.58 8860K12 12.61

1/4" Fully Threaded __ Coarse 0.183" 0.112" 0.038" 3/32" 80,000 ASME B18.3, ASTM F837 5 90152A110 6.35 8860K12 12.61

5/16" Fully Threaded __ Coarse 0.183" 0.112" 0.036" 3/32" 80,000 ASME B18.3, ASTM F837 5 90152A112 8.81 8860K12 12.61

3/8" Fully Threaded __ Coarse 0.183" 0.112" 0.038" 3/32" 80,000 ASME B18.3, ASTM F837 5 90152A113 6.19 8860K12 12.61

1/2" Fully Threaded __ Coarse 0.183" 0.112" 0.038" 3/32" 80,000 ASME B18.3, ASTM F837 5 90152A116 6.30 8860K12 12.61

6-32

3/16" Fully Threaded __ Coarse 0.226" 0.138" 0.036" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A141 9.54 8860K12 12.61

1/4" Fully Threaded __ Coarse 0.226" 0.138" 0.036" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A142 7.91 8860K12 12.61

5/16" Fully Threaded __ Coarse 0.226" 0.138" 0.036" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A143 8.69 8860K12 12.61

3/8" Fully Threaded __ Coarse 0.226" 0.138" 0.038" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A150 6.12 8860K12 12.61

1/2" Fully Threaded __ Coarse 0.226" 0.138" 0.038" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A153 6.24 8860K12 12.61

3/4" Fully Threaded __ Coarse 0.226" 0.138" 0.038" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A156 6.29 8860K12 12.61

1" Fully Threaded __ Coarse 0.226" 0.138" 0.036" 7/64" 80,000 ASME B18.3, ASTM F837 5 90152A159 9.28 8860K12 12.61

8-32

1/4" Fully Threaded __ Coarse 0.27" 0.164" 0.047" 9/64" 80,000 ASME B18.3, ASTM F837 5 90152A216 8.21 8860K13 12.15

3/8" Fully Threaded __ Coarse 0.27" 0.164" 0.047" 9/64" 80,000 ASME B18.3, ASTM F837 5 90152A215 6.12 8860K13 12.15

1/2" Fully Threaded __ Coarse 0.27" 0.164" 0.047" 9/64" 80,000 ASME B18.3, ASTM F837 5 90152A218 6.16 8860K13 12.15

3/4" Fully Threaded __ Coarse 0.27" 0.164" 0.047" 9/64" 80,000 ASME B18.3, ASTM F837 5 90152A221 6.29 8860K13 12.15

1" Fully Threaded __ Coarse 0.27" 0.164" 0.047" 9/64" 80,000 ASME B18.3, ASTM F837 5 90152A222 9.40 8860K13 12.15

10-24

3/8" Fully Threaded __ Coarse 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A231 7.35 8860K13 12.15

1/2" Fully Threaded __ Coarse 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A232 7.46 8860K13 12.15

5/8" Fully Threaded __ Coarse 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A233 7.68 8860K13 12.15

3/4" Fully Threaded __ Coarse 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A234 7.87 8860K13 12.15

1" Fully Threaded __ Coarse 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A235 8.02 8860K13 12.15

10-32

1/4" Fully Threaded __ Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A253 6.75 8860K13 12.15

3/8" Fully Threaded __ Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A254 6.73 8860K13 12.15

1/2" Fully Threaded __ Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A255 5.64 8860K13 12.15

5/8" Fully Threaded __ Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A256 7.03 8860K13 12.15

3/4" Fully Threaded __ Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A258 5.80 8860K13 12.15

1" Fully Threaded __ Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A261 5.96 8860K13 12.15

1 1/4" Partially Threaded 7/8" Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A262 8.13 8860K13 12.15

1 1/2" Partially Threaded 1 1/8" Fine 5/16" 0.19" 0.047" 5/32" 80,000 ASME B18.3, ASTM F837 5 90152A263 8.81 8860K13 12.15

1/4"-20

1/4" Fully Threaded __ Coarse 3/8" 1/4" 0.047" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A317 7.97 8860K13 12.15

5/16" Fully Threaded __ Coarse 3/8" 1/4" 0.047" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A318 8.08 8860K13 12.15

3/8" Fully Threaded __ Coarse 3/8" 1/4" 0.047" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A319 8.26 8860K13 12.15

1/2" Fully Threaded __ Coarse 3/8" 1/4" 0.063" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A320 5.80 8860K14 9.19

3/4" Fully Threaded __ Coarse 3/8" 1/4" 0.063" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A323 5.84 8860K14 9.19

1" Fully Threaded __ Coarse 3/8" 1/4" 0.063" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A326 6.36 8860K14 9.19

1 1/4" Fully Threaded __ Coarse 3/8" 1/4" 0.063" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A329 6.56 8860K14 9.19

1 1/2" Partially Threaded 1" Coarse 3/8" 1/4" 0.063" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A332 7.00 8860K14 9.19

2" Partially Threaded 1" Coarse 3/8" 1/4" 0.047" 3/16" 80,000 ASME B18.3, ASTM F837 5 90152A335 11.48 8860K13 12.15

5/16"-18

3/4" Fully Threaded __ Coarse 15/32" 5/16" 0.047" 1/4" 80,000 ASME B18.3, ASTM F837 5 90152A336 8.91 8860K13 12.15

1" Fully Threaded __ Coarse 15/32" 5/16" 0.047" 1/4" 80,000 ASME B18.3, ASTM F837 5 90152A337 9.15 8860K13 12.15

1 1/4" Fully Threaded __ Coarse 15/32" 5/16" 0.047" 1/4" 80,000 ASME B18.3, ASTM F837 5 90152A338 10.12 8860K13 12.15

1 1/2" Fully Threaded __ Coarse 15/32" 5/16" 0.047" 1/4" 80,000 ASME B18.3, ASTM F837 5 90152A339 10.72 8860K13 12.15

3/8"-16

3/4" Fully Threaded __ Coarse 9/16" 3/8" 0.064" 5/16" 80,000 ASME B18.3, ASTM F837 5 90152A341 9.49 8860K14 9.19

1" Fully Threaded __ Coarse 9/16" 3/8" 0.064" 5/16" 80,000 ASME B18.3, ASTM F837 5 90152A342 9.79 8860K14 9.19

1 1/4" Fully Threaded __ Coarse 9/16" 3/8" 0.064" 5/16" 80,000 ASME B18.3, ASTM F837 5 90152A343 10.32 8860K14 9.19

1 1/2" Fully Threaded __ Coarse 9/16" 3/8" 0.064" 5/16" 80,000 ASME B18.3, ASTM F837 5 90152A344 10.67 8860K14 9.19

1 3/4" Partially Threaded 1 1/4" Coarse 9/16" 3/8" 0.064" 5/16" 80,000 ASME B18.3, ASTM F837 5 90152A345 11.54 8860K14 9.19

2" Partially Threaded 1 1/2" Coarse 9/16" 3/8" 0.064" 5/16" 80,000 ASME B18.3, ASTM F837 5 90152A346 12.33 8860K14 9.19

1/2"-13

1" Fully Threaded __ Coarse 3/4" 1/2" 0.064" 3/8" 80,000 ASME B18.3, ASTM F837 5 90152A357 14.30 8860K14 9.19

1 1/4" Fully Threaded __ Coarse 3/4" 1/2" 0.064" 3/8" 80,000 ASME B18.3, ASTM F837 5 90152A358 14.56 8860K14 9.19