Aluminum screws are one-third the weight of steel and have good corrosion resistance. Length is measured from under the head.

Screws with a blue-anodized finish are easy to distinguish.

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

7075 Aluminum

Blue-Anodized

7075 Aluminum

Lg. Threading Thread

Spacing Dia. Ht. Drive Size Pkg.

Qty. Pkg. Pkg.

Qty. Pkg.

2-56

1/8" Fully Threaded Coarse 9/64" 0.086" 5/64" 10 98511A101 $11.99 10 98511A103 $11.99

3/16" Fully Threaded Coarse 9/64" 0.086" 5/64" 10 98511A111 12.16 10 98511A113 12.16

1/4" Fully Threaded Coarse 9/64" 0.086" 5/64" 10 98511A121 12.16 10 98511A123 12.16

5/16" Fully Threaded Coarse 9/64" 0.086" 5/64" 10 98511A711 13.96 __ ______ __

3/8" Fully Threaded Coarse 9/64" 0.086" 5/64" 10 98511A712 13.40 5 98511A727 8.48

1/2" Fully Threaded Coarse 9/64" 0.086" 5/64" 10 98511A131 13.09 10 98511A133 13.09

4-40

3/16" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A201 13.63 10 98511A203 13.63

1/4" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A211 12.81 10 98511A213 12.81

5/16" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A221 13.63 10 98511A223 13.63

3/8" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A231 12.81 10 98511A233 12.81

1/2" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A241 12.81 10 98511A243 12.81

5/8" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A251 14.45 10 98511A253 14.45

3/4" Fully Threaded Coarse 0.183" 0.112" 3/32" 10 98511A151 15.79 10 98511A152 15.79

1" Fully Threaded Coarse 0.183" 0.112" 3/32" 5 98511A161 11.48 5 98511A162 11.48

6-32

1/4" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A301 10.09 10 98511A303 10.09

5/16" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A713 11.63 __ ______ __

3/8" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A311 10.63 10 98511A313 10.63

1/2" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A321 10.80 10 98511A323 10.80

5/8" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A331 11.18 10 98511A333 11.18

3/4" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A341 11.45 10 98511A343 11.45

1" Fully Threaded Coarse 0.226" 0.138" 7/64" 10 98511A351 11.99 10 98511A353 11.99

M3

6mm Fully Threaded Coarse 5.68mm 3mm 2.5 mm 10 98511A728 13.91 __ ______ __

8mm Fully Threaded Coarse 5.68mm 3mm 2.5 mm 10 98511A729 14.13 __ ______ __

10mm Fully Threaded Coarse 5.68mm 3mm 2.5 mm 10 98511A731 14.35 __ ______ __

12mm Fully Threaded Coarse 5.68mm 3mm 2.5 mm 10 98511A732 14.78 __ ______ __

16mm Fully Threaded Coarse 5.68mm 3mm 2.5 mm 10 98511A733 14.78 __ ______ __

20mm Fully Threaded Coarse 5.68mm 3mm 2.5 mm 10 98511A734 14.78 __ ______ __

M4

8mm Fully Threaded Coarse 7.22mm 4mm 3 mm 5 98511A735 8.48 5 98511A736 8.48

10mm Fully Threaded Coarse 7.22mm 4mm 3 mm 5 98511A737 8.48 5 98511A738 8.48

12mm Fully Threaded Coarse 7.22mm 4mm 3 mm 5 98511A739 8.91 5 98511A741 8.91

14mm Fully Threaded Coarse 7.22mm 4mm 3 mm 5 98511A742 9.13 __ ______ __

16mm Fully Threaded Coarse 7.22mm 4mm 3 mm 5 98511A743 9.35 __ ______ __

20mm Fully Threaded Coarse 7.22mm 4mm 3 mm 5 98511A744 9.78 __ ______ __

M5

10mm Fully Threaded Coarse 8.72mm 5mm 4 mm 10 98511A745 15.22 __ ______ __

16mm Fully Threaded Coarse 8.72mm 5mm 4 mm 5 98511A746 10.87 __ ______ __

Head

2024 Aluminum

Blue-Anodized

2024 Aluminum

Lg. Threading Min.

Thread Lg. Thread

Spacing Dia. Ht. Drive

Size Pkg.

Qty. Pkg. Pkg.

Qty. Pkg.

8-32

1/4" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 5 98511A401 $12.82 5 98511A403 $12.82

3/8" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 10 98511A411 23.48 10 98511A413 23.48

1/2" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 5 98511A421 14.25 5 98511A423 14.25

5/8" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 5 98511A431 14.25 5 98511A433 14.25

3/4" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 10 98511A441 15.68 10 98511A443 15.68

1" Fully Threaded __ Coarse 0.27" 0.164" 9/64" 1 98511A451 3.08 1 98511A453 3.08

1 1/4" Partially Threaded 7/8" Coarse 0.27" 0.164" 9/64" 5 98511A714 13.00 __ ______ __

10-32

1/4" Fully Threaded __ Fine 5/16" 0.19" 5/32" 10 98511A501 23.48 10 98511A503 23.48

3/8" Fully Threaded __ Fine 5/16" 0.19" 5/32" 10 98511A511 24.00 10 98511A513 24.00

1/2" Fully Threaded __ Fine 5/16" 0.19" 5/32" 10 98511A521 24.52 10 98511A523 24.52

5/8" Fully Threaded __ Fine 5/16" 0.19" 5/32" 5 98511A719 14.13 __ ______ __

3/4" Fully Threaded __ Fine 5/16" 0.19" 5/32" 10 98511A541 25.04 10 98511A543 25.04

1 1/4" Partially Threaded 7/8" Fine 5/16" 0.19" 5/32" 5 98511A721 15.00 __ ______ __

10-24

3/8" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 5 98511A715 13.26 __ ______ __

1/2" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 5 98511A716 13.48 __ ______ __

5/8" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 5 98511A717 13.70 __ ______ __

3/4" Fully Threaded __ Coarse 5/16" 0.19" 5/32" 5 98511A718 14.13 __ ______ __

1/4"-28

3/4" Fully Threaded __ Fine 3/8" 1/4" 3/16" 5 98511A725 15.17 __ ______ __

1" Fully Threaded __ Fine 3/8" 1/4" 3/16" 1 98511A726 4.13 __ ______ __

1/4"-20

3/8" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 10 98511A601 23.48 10 98511A603 23.48

1/2" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 10 98511A611 25.83 10 98511A613 25.83

5/8" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 5 98511A621 17.84 5 98511A623 17.84

3/4" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 5 98511A631 17.84 5 98511A633 17.84

1" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 1 98511A641 3.29 1 98511A643 3.29

1 1/4" Fully Threaded __ Coarse 3/8" 1/4" 3/16" 1 98511A651 3.91 1 98511A653 3.91

1 1/2" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 1 98511A661 3.91 1 98511A663 3.91

1 3/4" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 1 98511A723 4.78 __ ______ __

2 1/2" Partially Threaded 1" Coarse 3/8" 1/4" 3/16" 1 98511A724 4.78 __ ______ __