Request a Custom Part
Click image to enlarge

Grade 8 (USA) Hex Cap Screws

Grade 8 Hex Cap Screws are very common fasteners found in manufacturing, repair and construction industries worldwide.  They are used to fasten 2 or more parts together in an assembly that may require future repair or maintenance disassembly.  Their six-sided hex head allows for a more substantial bearing and wrenching surface than what socket products or machine screws can provide, thereby making them the clear choice in many complex and heavy duty applications. 
 
Model Product Size Plate Pkg Qty  
452122 5/16"-24 (UNF) x 2-3/4" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 750
Add to
Quote
452124 5/16"-24 (UNF) x 3" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 500
Add to
Quote
452125 5/16"-24 (UNF) x 3-1/4" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 450
Add to
Quote
452126 5/16"-24 (UNF) x 3-1/2" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 450
Add to
Quote
452127 5/16"-24 (UNF) x 3-3/4" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 400
Add to
Quote
452128 5/16"-24 (UNF) x 4" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 400
Add to
Quote
452129 5/16"-24 (UNF) x 4-1/2" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 300
Add to
Quote
452130 3/8"-16 x 1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 1,300
Add to
Quote
452131 5/16"-24 (UNF) x 5" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 250
Add to
Quote
452132 3/8"-16 x 5/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 1,200
Add to
Quote
452133 5/16"-24 (UNF) x 5-1/2" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 250
Add to
Quote
452134 3/8"-16 x 3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 1,100
Add to
Quote
452135 5/16"-24 (UNF) x 6" Hex Cap Screw, Grade 8 (USA), Plain 5/16"-24 Plain 250
Add to
Quote
452136 3/8"-16 x 7/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 1,000
Add to
Quote
452138 3/8"-16 x 1" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 900
Add to
Quote
452139 3/8"-16 x 1 1/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 800
Add to
Quote
452140 3/8"-16 x 1-1/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 800
Add to
Quote
452141 3/8"-16 x 1 3/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 675
Add to
Quote
452142 3/8"-16 x 1-1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 675
Add to
Quote
452143 3/8"-16 x 1 5/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 650
Add to
Quote
452144 3/8"-16 x 1-3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 600
Add to
Quote
452146 3/8"-16 x 2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 550
Add to
Quote
452148 3/8"-16 x 2-1/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 450
Add to
Quote
452149 3/8"-16 x 2 3/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 425
Add to
Quote
452150 3/8"-16 x 2-1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 400
Add to
Quote
452152 3/8"-16 x 2-3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 400
Add to
Quote
452154 3/8"-16 x 3" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 325
Add to
Quote
452156 3/8"-16 x 3-1/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 325
Add to
Quote
452158 3/8"-16 x 3-1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 300
Add to
Quote
452160 3/8"-16 x 3-3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 250
Add to
Quote
452162 3/8"-16 x 4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 250
Add to
Quote
452163 3/8"-16 x 4 1/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 225
Add to
Quote
452164 3/8"-16 x 4-1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 225
Add to
Quote
452165 3/8"-16 x 4 3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 225
Add to
Quote
452166 3/8"-16 x 5" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 225
Add to
Quote
452167 3/8"-16 x 5 1/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 200
Add to
Quote
452168 3/8"-16 x 5-1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 175
Add to
Quote
452169 3/8"-16 x 6" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 175
Add to
Quote
452170 3/8"-16 x 5 3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-16 Plain 175
Add to
Quote
452172 3/8"-24 (UNF) x 1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 1,300
Add to
Quote
452174 3/8"-24 (UNF) x 5/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 1,200
Add to
Quote
452176 3/8"-24 (UNF) x 3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 1,100
Add to
Quote
452178 3/8"-24 (UNF) x 7/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 1,000
Add to
Quote
452180 3/8"-24 (UNF) x 1" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 900
Add to
Quote
452181 3/8"-24 (UNF) x 1 1/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 800
Add to
Quote
452182 3/8"-24 (UNF) x 1-1/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 800
Add to
Quote
452183 3/8"-24 (UNF) x 1 3/8" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 675
Add to
Quote
452184 3/8"-24 (UNF) x 1-1/2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 675
Add to
Quote
452186 3/8"-24 (UNF) x 1-3/4" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 600
Add to
Quote
452190 3/8"-24 (UNF) x 2" Hex Cap Screw, Grade 8 (USA), Plain 3/8"-24 Plain 550
Add to
Quote

Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
5/16"-24
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-16
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain
Model:
Size:
3/8"-24
Plate:
Plain

Specifications of Domestic Grade 8 Hex Cap Screws

Grade 8 Hex Cap Screws are manufactured from medium carbon alloy steel and are heat-treated, quenched and tempered.  With a proof load of 120,000 PSI and minimum tensile strength of 150,000 PSI, they are generally employed in high strength applications.  They are easily identified with the unique head marking of 6 radial lines and are most commonly available in plain finish, and yellow electro-zinc plate.  USA Grade 8 Hex Cap Screws are manufactured in the United States and every aspect is wholly 100% domestic, from mining of the ore to final quenching and tempering of the screw. 

Tell Us Your Domestic Grade 8 Hex Cap Screw Needs

Call Empire Bolt & Screw or send us a Request for Quote on your Grade 8 (USA) Hex Cap Screws needs today.

© 2024 Empire Bolt & Screw Inc. - 1501 E Trent Avenue - Spokane, WA 99202-2938
Toll-Free US & Canada: 888-534-0636 - Phone: 509-534-0636 - Fax: 509-534-1475