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Steel Wire-Lockable Hex Head Screws
Fully Threaded
Partially Threaded
Wire these screws together through the hole in the head to get more vibration resistance than any other screw (wire sold separately). They are made from zinc-plated Grade 5 steel that’s stronger than stainless steel and provides corrosion resistance in wet environments. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number. For technical drawings and 3-D models, click on a part number.
Lg. Threading Min.
Thread Lg. Head
Wd. Head
Ht. Hole
Dia. Tensile
Strength, psi Specifications Met Pkg.
Qty. Pkg. Each
Zinc-Plated Grade 5 Steel
1/4"-20
1/2" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A537 $11.01 8860K14 $6.10
5/8" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A539 11.24 8860K14 6.10
3/4" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A540 11.24 8860K14 6.10
1" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A542 11.75 8860K14 6.10
5/16"-18
3/4" Fully Threaded __ 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A581 13.16 8860K14 6.10
7/8" Fully Threaded __ 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A582 13.26 8860K14 6.10
1" Fully Threaded __ 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A583 7.28 8860K14 6.10
1 1/2" Partially Threaded 7/8" 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A587 8.42 8860K14 6.10
3/8"-16
3/4" Fully Threaded __ 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A622 7.28 8860K14 6.10
1" Fully Threaded __ 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A624 7.70 8860K14 6.10
1 1/4" Fully Threaded __ 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A626 8.35 8860K14 6.10
1 1/2" Partially Threaded 1" 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A628 9.00 8860K14 6.10
2" Partially Threaded 1" 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A632 10.03 8860K14 6.10
3" Partially Threaded 1" 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A636 11.08 8860K14 6.10
1/2"-13
3/4" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A710 11.71 8860K16 6.51
1" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A712 12.13 8860K16 6.51
1 1/4" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A714 12.64 8860K16 6.51
1 1/2" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A716 13.29 8860K16 6.51
1 3/4" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 1 90124A718 2.89 8860K16 6.51
2" Partially Threaded 1 1/4" 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 1 90124A720 3.06 8860K16 6.51
5/8"-11
1 1/2" Fully Threaded __ 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A798 4.43 8860K21 11.98
1 3/4" Fully Threaded __ 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A800 4.61 8860K21 11.98
2" Fully Threaded __ 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A802 4.78 8860K21 11.98
2 1/2" Partially Threaded 1 1/2" 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A804 5.17 8860K21 11.98
3/4"-10
2" Fully Threaded __ 1 1/8" 1/2" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A843 6.58 8860K21 11.98
2 1/4" Fully Threaded __ 1 1/8" 1/2" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A844 7.04 8860K21 11.98
3" Partially Threaded 1 3/4" 1 1/8" 1/2" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A847 7.60 8860K21 11.98