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Grade 5 Bolts


High-Quality Grade 5 Bolts & Fasteners | U-Bolt-It

What is a Grade 5 Bolt?

Grade 5 bolts and fasteners are highly reliable structural components manufactured from medium-strength carbon steel. They are strictly specified under the standards set by the Society of Automotive Engineers (SAE). In the field, Grade 5 bolts can easily be identified by the three distinct radial marks stamped on the head of the bolt.

Technical Specifications and Equivalents

To ensure consistent strength and durability, our Grade 5 bolts are heat-treated in a controlled atmosphere. They are available in sizes ranging from ¼ inch through 1-½ inches in diameter. Key specifications include:

  • Minimum Tensile Strength (up to 1" diameter): 120,000 psi
  • Minimum Tensile Strength (over 1" to 1-½" diameter): 105,000 psi
  • Metric Equivalent: Grade 5 bolts are equivalent to Metric 8.8 bolts. When sourcing hardware, always be sure to match the grades on the bolts being used to maintain structural integrity.

Grade 5 vs. Grade 8 Bolts

While Grade 5 bolts offer exceptional strength for general commercial and industrial use, if your application calls for fastening heavier materials, you may need to upgrade to Grade 8 bolts. Grade 8 bolts are the hardest and strongest option available, making them the standard for extreme, heavy manufacturing applications. However, for standard load-bearing requirements, Grade 5 bolts are the perfect, cost-effective solution.

Available Custom Finishes

To provide additional protection against rust and environmental wear, each Grade 5 bolt from U-Bolt-It is available in a high-quality zinc-plated finish.

Request a Quote Today

Have a question about our manufactured Grade 5 bolts? Contact our team directly by phone or by using our secure online form. You can also give us a call today to speak directly with our fastener specialists. We look forward to speaking with you!

Types of Grade 5 Bolts


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SKU NAME DIAMETER THREAD LENGTH DETAILS
HH50870650 7/8-9 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 6
HH50430800 7/16-14 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 8
HH50430750 7/16-14 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 7 1/2
HH50430700 7/16-14 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 7
HH50430650 7/16-14 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 6 1/2
HH50430600 7/16-14 X 6 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 6
HH50430550 7/16-14 X 5 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 5 1/2
HH50430500 7/16-14 X 5 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 5
HH50430450 7/16-14 X 4 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 4 1/2
HH50430400 7/16-14 X 4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 4
HH50430375 7/16-14 X 3 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 3 3/4
HH50430350 7/16-14 X 3 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 3 1/2
HH50430325 7/16-14 X 3 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 3 1/4
HH50430300 7/16-14 X 3 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 3
HH50430275 7/16-14 X 2 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 2 3/4
HH50430250 7/16-14 X 2 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 2 1/2
HH50430225 7/16-14 X 2 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 2 1/4
HH50430200 7/16-14 X 2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 2
HH50430175 7/16-14 X 1 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 1 3/4
HH50430150 7/16-14 X 1 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 1 1/2
HH50430125 7/16-14 X 1 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 1 1/4
HH50430100 7/16-14 X 1 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 1
HH50430075 7/16-14 X 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 14 3/4
HH50870700 7/8-9 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 6 1/2
HH50870750 7/8-9 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 7
HH50871500 7/8-9 X 15 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 14
HH50871400 7/8-9 X 14 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 13
HH50871300 7/8-9 X 13 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 12
HH50871200 7/8-9 X 12 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 11
HH50871100 7/8-9 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 10
HH50871000 7/8-9 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 9 1/2
HH50870950 7/8-9 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 9
HH50870900 7/8-9 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 8 1/2
HH50870850 7/8-9 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 8
HH50870800 7/8-9 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 9 7 1/2
HH5F0871500 7/8-14 X 15 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 15
HH5F0871400 7/8-14 X 14 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 14
HH5F0871300 7/8-14 X 13 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 13
HH5F0871200 7/8-14 X 12 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 12
HH5F0871100 7/8-14 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 11
HH5F0871000 7/8-14 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 10
HH5F0870950 7/8-14 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 9 1/2
HH5F0870900 7/8-14 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 9
HH5F0870850 7/8-14 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 8 1/2
HH5F0870800 7/8-14 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 8
HH5F0870750 7/8-14 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 7 1/2
HH5F0870700 7/8-14 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 7
HH5F0870650 7/8-14 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/8 14 6 1/2
HH5F0430075 7/16-20 X 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 20 3/4
HH5F0430100 7/16-20 X 1 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 7/16 20 1