A Torx-Plus drive has more points of contact than a hex drive, allowing you to tighten these screws with less slippage or damage to the recess. With a tensile strength of 180,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Their black-oxide finish provides mild corrosion resistance in dry environments. They can be used with both Torx-Plus and standard Torx tools (see Torx bits and Torx keys and drivers). Screws meet ASTM A574 specifications and testing requirements for 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.

Head

Lg. Threading Min.

Thread Lg. Thread

Spacing Dia. Ht. Drive

Size Tensile

Strength, psi Specifications

Met Pkg.

Qty. Pkg.

Black-Oxide Alloy Steel

4-40

1/4" Fully Threaded __ Coarse 0.183" 0.112" IP10 180,000 ASTM A574 100 92610A108 $9.55

3/8" Fully Threaded __ Coarse 0.183" 0.112" IP10 180,000 ASTM A574 100 92610A106 10.62

1/2" Fully Threaded __ Coarse 0.183" 0.112" IP10 180,000 ASTM A574 100 92610A110 10.79

5/8" Fully Threaded __ Coarse 0.183" 0.112" IP10 180,000 ASTM A574 50 92610A112 11.29

3/4" Fully Threaded __ Coarse 0.183" 0.112" IP10 180,000 ASTM A574 50 92610A114 10.70

5-40

3/8" Fully Threaded __ Coarse 0.205" 1/8" IP10 180,000 ASTM A574 50 92610A126 9.07

1/2" Fully Threaded __ Coarse 0.205" 1/8" IP10 180,000 ASTM A574 50 92610A128 9.78

6-32

1/4" Fully Threaded __ Coarse 0.226" 0.138" IP15 180,000 ASTM A574 100 92610A144 10.59

3/8" Fully Threaded __ Coarse 0.226" 0.138" IP15 180,000 ASTM A574 100 92610A146 10.85

1/2" Fully Threaded __ Coarse 0.226" 0.138" IP15 180,000 ASTM A574 100 92610A148 11.22

5/8" Fully Threaded __ Coarse 0.226" 0.138" IP15 180,000 ASTM A574 50 92610A150 11.29

3/4" Fully Threaded __ Coarse 0.226" 0.138" IP15 180,000 ASTM A574 50 92610A152 10.69

8-32

1/4" Fully Threaded __ Coarse 0.27" 0.164" IP25 180,000 ASTM A574 100 92610A190 10.85

3/8" Fully Threaded __ Coarse 0.27" 0.164" IP25 180,000 ASTM A574 100 92610A192 11.25

1/2" Fully Threaded __ Coarse 0.27" 0.164" IP25 180,000 ASTM A574 100 92610A194 11.72

5/8" Fully Threaded __ Coarse 0.27" 0.164" IP25 180,000 ASTM A574 50 92610A911 11.89

3/4" Fully Threaded __ Coarse 0.27" 0.164" IP25 180,000 ASTM A574 50 92610A198 10.79

1" Fully Threaded __ Coarse 0.27" 0.164" IP25 180,000 ASTM A574 50 92610A202 13.04

10-24

1/2" Fully Threaded __ Coarse 5/16" 0.19" IP27 180,000 ASTM A574 100 92610A242 13.09

5/8" Fully Threaded __ Coarse 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A243 10.56

3/4" Fully Threaded __ Coarse 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A245 11.42

1" Fully Threaded __ Coarse 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A247 13.68

10-32

3/8" Fully Threaded __ Fine 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A912 9.59

1/2" Fully Threaded __ Fine 5/16" 0.19" IP27 180,000 ASTM A574 100 92610A842 12.99

5/8" Fully Threaded __ Fine 5/16" 0.19" IP27 180,000 ASTM A574 100 92610A517 14.03

3/4" Fully Threaded __ Fine 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A845 11.40

1" Fully Threaded __ Fine 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A523 14.01

1 1/4" Partially Threaded 7/8" Fine 5/16" 0.19" IP27 180,000 ASTM A574 50 92610A527 15.58

1 1/2" Partially Threaded 7/8" Fine 5/16" 0.19" IP27 180,000 ASTM A574 25 92610A528 9.29

1 3/4" Partially Threaded 7/8" Fine 5/16" 0.19" IP27 180,000 ASTM A574 25 92610A531 9.89

2" Partially Threaded 7/8" Fine 5/16" 0.19" IP27 180,000 ASTM A574 25 92610A533 10.94

1/4"-20

3/8" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A335 9.72

1/2" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A537 9.53

5/8" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A339 14.31

3/4" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A540 11.12

7/8" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A913 16.51

1" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A542 12.04

1 1/4" Fully Threaded __ Coarse 3/8" 1/4" IP30 180,000 ASTM A574 50 92610A344 15.80

1 1/2" Partially Threaded 1" Coarse 3/8" 1/4" IP30 180,000 ASTM A574 25 92610A346 8.76

2 1/2" Partially Threaded 1" Coarse 3/8" 1/4" IP30 180,000 ASTM A574 25 92610A352 14.59

3" Partially Threaded 1" Coarse 3/8" 1/4" IP30 180,000 ASTM A574 10 92610A353 8.44

1/4"-28

1/2" Fully Threaded __ Fine 3/8" 1/4" IP30 180,000 ASTM A574 25 92610A914 7.56

3/4" Fully Threaded __ Fine 3/8" 1/4" IP30 180,000 ASTM A574 25 92610A611 7.36

1" Fully Threaded __ Fine 3/8" 1/4" IP30 180,000 ASTM A574 25 92610A619 8.41

5/16"-18

3/4" Fully Threaded __ Coarse 15/32" 5/16" IP45 180,000 ASTM A574 50 92610A581 15.11

7/8" Fully Threaded __ Coarse 15/32" 5/16" IP45 180,000 ASTM A574 25 92610A915 8.11

1" Fully Threaded __ Coarse 15/32" 5/16" IP45 180,000 ASTM A574 25 92610A583 8.26

1 1/4" Fully Threaded __ Coarse 15/32" 5/16" IP45 180,000 ASTM A574 25 92610A385 9.14

1 1/2" Fully Threaded __ Coarse 15/32" 5/16" IP45 180,000 ASTM A574 25 92610A387 9.98

5/16"-24

1 1/4" Fully Threaded __ Fine 15/32" 5/16" IP45 180,000 ASTM A574 25 92610A711 10.24

3/8"-16

1" Fully Threaded __ Coarse 9/16" 3/8" IP50 180,000 ASTM A574 25 92610A624 10.86

1 1/2" Fully Threaded __ Coarse 9/16" 3/8" IP50 180,000 ASTM A574 25 92610A628 11.85

2 1/4" Partially Threaded 1 1/4" Coarse 9/16" 3/8" IP50 180,000 ASTM A574 10 92610A428 9.99