%20--%3e%3csvg%20version='1.1'%20id='Layer_1'%20xmlns='http://www.w3.org/2000/svg'%20xmlns:xlink='http://www.w3.org/1999/xlink'%20x='0px'%20y='0px'%20viewBox='0%200%20400%20400'%20style='enable-background:new%200%200%20400%20400;'%20xml:space='preserve'%3e%3cstyle%20type='text/css'%3e%20.st0{fill:%231A70A0;}%20.st1{opacity:0.5;}%20%3c/style%3e%3cg%3e%3cg%3e%3cpath%20class='st0'%20d='M200,56.9c38.35,0,74.4,14.93,101.51,42.05c27.11,27.11,42.05,63.17,42.05,101.51s-14.93,74.4-42.05,101.51%20S238.35,344.02,200,344.02s-74.4-14.93-101.51-42.05c-27.11-27.11-42.05-63.17-42.05-101.51s14.93-74.4,42.05-101.51%20S161.65,56.9,200,56.9%20M200,12.9C96.41,12.9,12.44,96.88,12.44,200.46c0,103.59,83.97,187.56,187.56,187.56%20c103.59,0,187.56-83.97,187.56-187.56C387.56,96.88,303.59,12.9,200,12.9L200,12.9z'/%3e%3c/g%3e%3cg%3e%3cg%20class='st1'%3e%3cpath%20class='st0'%20d='M235.49,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C190.89,163.58,214.53,158.88,235.49,152.24z%20M230.44,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C218.68,82.23,224.24,80.84,230.44,80.84z'/%3e%3c/g%3e%3cg%3e%3cpath%20class='st0'%20d='M214.08,152.24h16.15l-27.46,111.87c-1.94,7.8-2.91,12.5-2.91,14.1c0,1.82,0.58,3.29,1.73,4.41%20c1.16,1.12,2.69,1.68,4.61,1.68c5.23,0,11.78-3.85,19.63-11.55l17.22,21.34c-16.95,17.33-34.87,26-53.78,26%20c-8.37,0-15.45-1.47-21.23-4.41c-5.79-2.94-10.44-7.25-13.95-12.92c-3.51-5.67-5.27-11.18-5.27-16.53c0-1.93,0.35-5.24,1.05-9.94%20c1-6.94,2.05-12.54,3.15-16.82l15.22-62.15h-32.69l7.65-30.97C169.48,163.58,193.11,158.88,214.08,152.24z%20M209.03,80.84%20c8.24,0,14.66,2.62,19.26,7.86c4.6,5.24,6.9,11.55,6.9,18.94c0,5.46-1.42,10.7-4.25,15.73c-2.83,5.03-6.88,9.07-12.12,12.12%20c-5.24,3.05-10.33,4.57-15.24,4.57c-4.6,0-9.17-1.23-13.72-3.69c-4.55-2.46-8.02-5.78-10.43-9.95%20c-2.41-4.17-3.61-8.67-3.61-13.48c0-5.35,1.52-10.64,4.57-15.89c3.05-5.24,7.03-9.25,11.96-12.04%20C197.26,82.23,202.83,80.84,209.03,80.84z'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
Choose hex head fasteners with the right threading types, thread sizes, and material for your equipment.
High-Strength Grade 8 Steel Hex Head Screws
Made from Grade 8 steel, these screws can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. For quick identification, their head is marked with six radial lines. Length is measured from under the head.
Steel screws are best for dry environments, since moisture will cause them to rust. They require little surface prep before applying a finish, so you can apply your own paint or coating.
Match the thread spacing of mating components. Coarse threads are the industry standard; choose these screws if you don’t know the threads per inch. Screws that meet ASME specifications are made to strict dimensional standards.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing  | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Grade 8 Steel | ||||||||||
1 3/4"-5 | ||||||||||
| 6" | Partially Threaded | 3 3/4" | Coarse | 2 5/8" | 1 3/32" | 150,000 | ASME B18.2.1, ASTM A354BD | 1 | 91268A450 | 000000 |
| 8" | Partially Threaded | 4" | Coarse | 2 5/8" | 1 3/32" | 150,000 | ASME B18.2.1, ASTM A354BD | 1 | 91268A460 | 00000 |
| 10" | Partially Threaded | 4" | Coarse | 2 5/8" | 1 3/32" | 150,000 | ASME B18.2.1, ASTM A354BD | 1 | 91268A470 | 00000 |
2"-4 1/2 | ||||||||||
| 8" | Partially Threaded | 4 1/2" | Coarse | 3" | 1 7/32" | 150,000 | ASME B18.2.1, ASTM A354BD | 1 | 91268A980 | 00000 |
| 9" | Partially Threaded | 4 1/2" | Coarse | 3" | 1 7/32" | 150,000 | ASME B18.2.1, ASTM A354BD | 1 | 91268A981 | 000000 |
| 10" | Partially Threaded | 4 1/2" | Coarse | 3" | 1 7/32" | 150,000 | ASME B18.2.1, ASTM A354BD | 1 | 91268A982 | 00000 |
Mil. Spec. High-Strength Steel Hex Head Screws
Choose these screws for their adherence to strict military standards for material and construction. Made from Grade 8 steel, they can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are at least 25% stronger than medium-strength steel screws. The zinc yellow-chromate plating resists corrosion in wet environments. Material meets ASTM A354BD and SAE J429 specifications for quality. Dimensions meet ASME B18.2.1 specifications. Grade 8 steel hex head screws are marked with six radial lines. Length is measured from under the head.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Threading | Min. Thread Lg. | Thread Spacing | Wd. | Ht. | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||||
1/4"-20 | ||||||||||
| 1" | Fully Threaded | __ | Coarse | 7/16" | 5/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-8 | 10 | 95362A105 | 00000 |
| 1 1/4" | Partially Threaded | 3/4" | Coarse | 7/16" | 5/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-10 | 10 | 95362A114 | 00000 |
| 1 1/2" | Partially Threaded | 3/4" | Coarse | 7/16" | 5/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-12 | 5 | 95362A123 | 0000 |
| 2" | Partially Threaded | 3/4" | Coarse | 7/16" | 5/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-14 | 5 | 95362A141 | 0000 |
5/16"-18 | ||||||||||
| 1" | Fully Threaded | __ | Coarse | 1/2" | 13/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-34 | 10 | 95362A201 | 00000 |
| 1 1/2" | Partially Threaded | 7/8" | Coarse | 1/2" | 13/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-38 | 5 | 95362A209 | 0000 |
| 2" | Partially Threaded | 7/8" | Coarse | 1/2" | 13/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-40 | 5 | 95362A217 | 00000 |
3/8"-16 | ||||||||||
| 1 1/4" | Fully Threaded | __ | Coarse | 9/16" | 15/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-62 | 5 | 95362A304 | 00000 |
| 1 1/2" | Partially Threaded | 1" | Coarse | 9/16" | 15/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-64 | 5 | 95362A316 | 00000 |
| 1 3/4" | Partially Threaded | 1" | Coarse | 9/16" | 15/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-65 | 5 | 95362A328 | 00000 |
| 2" | Partially Threaded | 1" | Coarse | 9/16" | 15/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-66 | 1 | 95362A340 | 0000 |
| 2 1/2" | Partially Threaded | 1" | Coarse | 9/16" | 15/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-68 | 1 | 95362A352 | 0000 |
| 3" | Partially Threaded | 1" | Coarse | 9/16" | 15/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-70 | 1 | 95362A364 | 0000 |
1/2"-13 | ||||||||||
| 1 1/2" | Fully Threaded | __ | Coarse | 3/4" | 5/16" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-113 | 1 | 95362A411 | 0000 |
| 2" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 5/16" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-115 | 1 | 95362A423 | 0000 |
| 3" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 5/16" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-119 | 1 | 95362A435 | 0000 |
| 3 1/2" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 5/16" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-121 | 1 | 95362A441 | 0000 |
| 4" | Partially Threaded | 1 1/4" | Coarse | 3/4" | 5/16" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-123 | 1 | 95362A447 | 00000 |
5/8"-11 | ||||||||||
| 1 3/4" | Fully Threaded | __ | Coarse | 15/16" | 25/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-163 | 1 | 95362A503 | 0000 |
| 2" | Fully Threaded | __ | Coarse | 15/16" | 25/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-164 | 1 | 95362A509 | 0000 |
| 2 1/2" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 25/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-166 | 1 | 95362A517 | 00000 |
| 3" | Partially Threaded | 1 1/2" | Coarse | 15/16" | 25/64" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-168 | 1 | 95362A532 | 00000 |
3/4"-10 | ||||||||||
| 2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-187 | 1 | 95362A620 | 00000 |
| 2 1/2" | Fully Threaded | __ | Coarse | 1 1/8" | 15/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-189 | 1 | 95362A635 | 00000 |
| 3" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 15/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-191 | 1 | 95362A640 | 00000 |
| 3 1/2" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 15/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-193 | 1 | 95362A655 | 00000 |
| 4" | Partially Threaded | 1 3/4" | Coarse | 1 1/8" | 15/32" | 150,000 | ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-195 | 1 | 95362A660 | 00000 |