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Grade 8 Hex Head Screws

Grade 8 Hex Head Screws


We have temporarily removed these items from our catalog while we re-organize our inventory.

Grade 8 Hex Head Screws
Zinc Yellow Finish. Alloy Steel with Rockwell Hardness C33-39.
Minimum tensile strength is 150,000 PSI.
Meets SAE J-429 standards.
Lengths over 1" may not be threaded all the way to the head.
The length of the screw is LENGTH UNDER THE HEAD, not including the head.
Quantity Price Model Description Length under Head Diameter Threads per Inch
Out of stock
$5.50 SCHH-14-1/2
1/4-20 x 1/2 Hex Head Screws, Gr.8, box of 100, 4021-0005 1/2" 1/4" NC 20
Out of stock
$7.80 SCHH-14-3/4
1/4-20 x 3/4 Hex Head Screws, Gr.8, box of 100 3/4" 1/4" NC 20
Out of stock
$8.90 SCHH-14-1
1/4-20 x 1 Hex Head Screws, Gr.8, box of 100, 4021-0010 1" 1/4" NC 20
Out of stock
$8.90 SCHH-14-1-1/4
1/4-20 x 1-1/4 Hex Head Screws, Gr.8, box of 100 1-1/4" 1/4" NC 20
Out of stock
$12.50 SCHH-14-1-1/2
1/4-20 x 1-1/2 Hex Head Screws, Gr.8, box of 100, 4021-0015 1-1/2" 1/4" NC 20
Out of stock
$16.00 SCHH-14-2
1/4-20 x 2 Hex Head Screws, Gr.8, box of 100, 4021-0020 2" 1/4" NC 20
Out of stock
$16.60 SCHH-14-2-1/2
1/4-20 x 2-1/2 Hex Head Screws, Gr.8, box of 100 2-1/2" 1/4" NC 20
Out of stock
$21.60 SCHH-14-3
1/4-20 x 3 Hex Head Screws, Gr.8, box of 100, 4021-0025 3" 1/4" NC 20
Out of stock
$10.20 SCHH-56-1/2
5/16-18 x 1/2 Hex Head Screws, Gr.8, box of 100, 4021-0045 1/2" 5/16" NC 18
Out of stock
$15.00 SCHH-56-3/4
5/16-18 x 3/4 Hex Head Screws, Gr.8, box of 100 3/4" 5/16" NC 18
Out of stock
$17.20 SCHH-56-1
5/16-18 x 1 Hex Head Screws, Gr.8, box of 100, 4021-0050 1" 5/16" NC 18
Out of stock
$20.50 SCHH-56-1-1/4
5/16-18 x 1-1/4 Hex Head Screws, Gr.8, box of 100 1-1/4" 5/16" NC 18
Out of stock
$23.30 SCHH-56-1-1/2
5/16-18 x 1-1/2 Hex Head Screws, Gr.8, box of 100, 4021-0055 1-1/2" 5/16" NC 18
Out of stock
$29.80 SCHH-56-2
5/16-18 x 2 Hex Head Screws, Gr.8, box of 100, 4021-0060 2" 5/16" NC 18
Out of stock
$36.10 SCHH-56-2-1/2
5/16-18 x 2-1/2 Hex Head Screws, Gr.8, box of 100 2-1/2" 5/16" NC 18
Out of stock
$42.70 SCHH-56-3
5/16-18 x 3 Hex Head Screws, Gr.8, box of 100, 4021-0065 3" 5/16" NC 18
Out of stock
$16.00 SCHH-38-1/2
3/8-16 x 1/2 Hex Head Screws, Gr.8, box of 100, 4021-0085 1/2" 3/8" NC 16
Out of stock
$17.80 SCHH-38-3/4
3/8-16 x 3/4 Hex Head Screws, Gr.8, box of 100 3/4" 3/8" NC 16
Out of stock
$20.20 SCHH-38-1
3/8-16 x 1 Hex Head Screws, Gr.8, box of 100, 4021-0090 1" 3/8" NC 16
Out of stock
$23.20 SCHH-38-1-1/4
3/8-16 x 1-1/4 Hex Head Screws, Gr.8, box of 100 1-1/4" 3/8" NC 16
Out of stock
$27.60 SCHH-38-1-1/2
3/8-16 x 1-1/2 Hex Head Screws, Gr.8, box of 100, 4021-0095 1-1/2" 3/8" NC 16
Out of stock
$35.70 SCHH-38-2
3/8-16 x 2 Hex Head Screws, Gr.8, box of 100, 4021-0100 2" 3/8" NC 16
Out of stock
$42.00 SCHH-38-2-1/2
3/8-16 x 2-1/2 Hex Head Screws, Gr.8, box of 100 2-1/2" 3/8" NC 16
Out of stock
$49.30 SCHH-38-3
3/8-16 x 3 Hex Head Screws, Gr.8, box of 100, 4021-0105 3" 3/8" NC 16
Out of stock
$30.50 SCHH-38-3-1/2
3/8-16 x 3-1/2 Hex Head Screws, Gr.8, box of 50 3-1/2" 3/8" NC 16
Out of stock
$34.40 SCHH-38-4
3/8-16 x 4 Hex Head Screws, Gr.8, box of 50, 4021-0110 4" 3/8" NC 16
Out of stock
$40.30 SCHH-38-4-1/2
3/8-16 x 4-1/2 Hex Head Screws, Gr.8, box of 50 4-1/2" 3/8" NC 16
Out of stock
$44.50 SCHH-38-5
3/8-16 x 5 Hex Head Screws, Gr.8, box of 50, 4021-0115 5" 3/8" NC 16
Out of stock
$17.00 SCHH-12-3/4
1/2-13 x 3/4 Hex Head Screws, Gr.8, box of 50, 4021-0125 3/4" 1/2" NC 13
Out of stock
$20.40 SCHH-12-1
1/2-13 x 1 Hex Head Screws, Gr.8, box of 50, 4021-0130 1" 1/2" NC 13
Out of stock
$24.30 SCHH-12-1-1/4
1/2-13 x 1-1/4 Hex Head Screws, Gr.8, box of 50 1-1/4" 1/2" NC 13
Out of stock
$26.20 SCHH-12-1-1/2
1/2-13 x 1-1/2 Hex Head Screws, Gr.8, box of 50, 4021-0135 1-1/2" 1/2" NC 13
Out of stock
$32.90 SCHH-12-2
1/2-13 x 2 Hex Head Screws, Gr.8, box of 50, 4021-0140 2" 1/2" NC 13
Out of stock
$39.00 SCHH-12-2-1/2
1/2-13 x 2-1/2 Hex Head Screws, Gr.8, box of 50 2-1/2" 1/2" NC 13
Out of stock
$46.00 SCHH-12-3
1/2-13 x 3 Hex Head Screws, Gr.8, box of 50, 4021-0145 3" 1/2" NC 13
Out of stock
$27.70 SCHH-12-3-1/2
1/2-13 x 3-1/2 Hex Head Screws, Gr.8, box of 25 3-1/2" 1/2" NC 13
Out of stock
$29.60 SCHH-12-4
1/2-13 x 4 Hex Head Screws, Gr.8, box of 25, 4021-0150 4" 1/2" NC 13
Out of stock
$36.95 SCHH-12-4-1/2
1/2-13 x 4-1/2Hex Head Screws, Gr.8, box of 25 4-1/2" 1/2" NC 13
Out of stock
$40.65 SCHH-12-5
1/2-13 x 5 Hex Head Screws, Gr.8, box of 25, 4021-0155 5" 1/2" NC 13
Out of stock
$44.40 SCHH-12-5-1/2
1/2-13 x 5-1/2 Hex Head Screws, Gr.8, box of 25 5-1/2" 1/2" NC 13
Out of stock
$45.75 SCHH-12-6
1/2-13 x 6 Hex Head Screws, Gr.8, box of 25, 4021-0160 6" 1/2" NC 13
Out of stock
$16.80 SCHH-58-1
5/8-11 x 1 Hex Head Screws, Gr.8, box of 25, 4021-0165 1" 5/8" NC 11
Out of stock
$23.35 SCHH-58-1-1/2
5/8-11 x 1-1/2 Hex Head Screws, Gr.8, box of 25, 4021-0170 1-1/2" 5/8" NC 11
Out of stock
$27.30 SCHH-58-2
5/8-11 x 2 Hex Head Screws, Gr.8, box of 25, 4021-0175 2" 5/8" NC 11
Out of stock
$40.50 SCHH-58-2-1/2
5/8-11 x 2-1/2 Hex Head Screws, Gr.8, box of 25 2-1/2" 5/8" NC 11
Out of stock
$37.35 SCHH-58-3
5/8-11 x 3 Hex Head Screws, Gr.8, box of 25, 4021-0180 3" 5/8" NC 11
Out of stock
$44.85 SCHH-58-3-1/2
5/8-11 x 3-1/2 Hex Head Screws, Gr.8, box of 25 3-1/2" 5/8" NC 11
Out of stock
$47.90 SCHH-58-4
5/8-11 x 4 Hex Head Screws, Gr.8, box of 25, 4021-0185 4" 5/8" NC 11
Out of stock
$61.50 SCHH-58-5
5/8-11 x 5 Hex Head Screws, Gr.8, box of 25, 4021-0190 5" 5/8" NC 11
Out of stock
$72.50 SCHH-58-6
5/8-11 x 6 Hex Head Screws, Gr.8, box of 25, 4021-0195 6" 5/8" NC 11
Out of stock
$29.50 SCHH-34-1
3/4-10 x 1 Hex Head Screws, Gr.8, box of 25, 4021-0200 1" 3/4" NC 10
Out of stock
$39.70 SCHH-34-1-1/2
3/4-10 x 1-1/2 Hex Head Screws, Gr.8, box of 25, 4021-0205 1-1/2" 3/4" NC 10
Out of stock
$45.25 SCHH-34-2
3/4-10 x 2 Hex Head Screws, Gr.8, box of 25, 4021-0210 2" 3/4" NC 10
Out of stock
$50.75 SCHH-34-2-1/2
3/4-10 x 2-1/2 Hex Head Screws, Gr.8, box of 25 2-1/2" 3/4" NC 10
Out of stock
$64.20 SCHH-34-3
3/4-10 x 3 Hex Head Screws, Gr.8, box of 25, 4021-0215 3" 3/4" NC 10
Out of stock
$69.30 SCHH-34-3-1/2
3/4-10 x 3-1/2 Hex Head Screws, Gr.8, box of 25 3-1/2" 3/4" NC 10
Out of stock
$73.65 SCHH-34-4
3/4-10 x 4 Hex Head Screws, Gr.8, box of 25, 4021-0220 4" 3/4" NC 10
Out of stock
$88.90 SCHH-34-5
3/4-10 x 5 Hex Head Screws, Gr.8, box of 25, 4021-0225 5" 3/4" NC 10
Out of stock
$111.25 SCHH-34-6
3/4-10 x 6 Hex Head Screws, Gr.8, box of 25, 4021-0230 6" 3/4" NC 10