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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
HH5F0500300 1/2-20 X 3 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 3
HH5F0500325 1/2-20 X 3 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 3 1/4
HH5F0500350 1/2-20 X 3 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 3 1/2
HH5F0500375 1/2-20 X 3 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 3 3/4
HH5F0500400 1/2-20 X 4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 4
HH5F0500425 1/2-20 X 4 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 4 1/4
HH5F0500450 1/2-20 X 4 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 4 1/2
HH5F0500475 1/2-20 X 4 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 4 3/4
HH5F0500500 1/2-20 X 5 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 5
HH5F0500525 1/2-20 X 5 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 5 1/4
HH5F0500550 1/2-20 X 5 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 5 1/2
HH5F0500575 1/2-20 X 5 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 5 3/4
HH5F0500600 1/2-20 X 6 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 6
HH5F0500650 1/2-203 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 6 1/2
HH5F0500700 1/2-20 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 7
HH5F0500750 1/2-20 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 7 1/2
HH5F0500800 1/2-20 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 8
HH5F0500850 1/2-20 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 8 1/2
HH5F0500900 1/2-20 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 9
HH5F0500950 1/2-20 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 9 1/2
HH5F0501000 1/2-20 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 10
HH5F0501100 1/2-20 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 11
HH5F0501200 1/2-20 X 12 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 12
HH5F1000150 1-14 X 1 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 1 1/4
HH5F1000175 1-14 X 1 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 1 3/4
HH5F1000200 1-14 X 2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 2
HH5F1000225 1-14 X 2 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 2 1/4
HH5F1000250 1-14 X 2 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 2 1/2
HH5F1000275 1-14 X 2 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 2 3/4
HH5F1000300 1-14 X 3 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 3
HH5F1000325 1-14 X 3 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 3 1/4
HH5F1000350 1-14 X 3 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 3 1/2
HH5F1000375 1-14 X 3 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 3 3/4
HH5F1000400 1-14 X 4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 4
HH5F1000450 1-14 X 4 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 4 1/2
HH5F1000500 1-14 X 5 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 5
HH5F1000550 1-14 X 5 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 5 1/2
HH5F1000600 1-14 X 6 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 6
HH5F1000650 1-14 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 6 1/2
HH5F1000700 1-14X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 7
HH5F1000750 1-14 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 7 1/2
HH5F1000800 1-14 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 8
HH5F1000850 1-14 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 8 1/2
HH5F1000900 1-14 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 9
HH5F1000950 1-14 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 9 1/2
HH5F1001000 1-14 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 10
HH5F1001100 1-14 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 11
HH5F1001300 1-14 X 13 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 13
HH5F1001400 1-14 X 14 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1 14 14
HH50250050 1/4-20 X 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/4 20 1/2