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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
HH5F0370650 3/8-24 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 6 1/2
HH5F0370700 3/8-24 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 7
HH5F0370750 3/8-24 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 7 1/2
HH5F0370800 3/8-24 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 8
HH5F0370850 3/8-24 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 8 1/2
HH5F0370900 3/8-24 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 9
HH5F0370950 3/8-24 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 9 1/2
HH5F0371000 3/8-24 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 10
HH5F0371100 3/8-24 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 11
HH5F0371200 3/8-24X 12 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 24 12
HH5F0750100 3/4-16 X 1 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 1
HH5F0750125 3/4-16 X 1 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 1 1/4
HH5F0750150 3/4-16 X 1 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 1 1/2
HH5F0750175 3/4-16 X 1 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 1 3/4
HH5F0750200 3/4-16 X 2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 2
HH5F0750225 3/4-16 X 2 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 2 1/4
HH5F0750250 3/4-16 X 2 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 2 1/2
HH5F0750275 3/4-16 X 2 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 2 3/4
HH5F0750300 3/4-16 X 3 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 3
HH5F0750325 3/4-16 X 3 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 3 1/4
HH5F0750350 3/4-16 X 3 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 3 1/2
HH5F0750375 3/4-16 X 3 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 3 3/4
HH5F0750400 3/4-16 X 4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 4
HH5F0750450 3/4-16 X 4 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 4 1/2
HH5F0750475 3/4-16 X 4 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 4 3/4
HH5F0750500 3/4-16 X 5 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 5
HH5F0750550 3/4-16 X 5 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 5 1/2
HH5F0750600 3/4-16 X 6 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 6
HH5F0750650 3/4-16 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 6 1/2
HH5F0750700 3/4-16 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 7
HH5F0750750 3/4-16 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 7 1/2
HH5F0750800 3/4-16 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 8
HH5F0750850 3/4-16 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 8 1/2
HH5F0750900 3/4-16 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 9
HH5F0750950 3/4-16 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 9 1/2
HH5F0751000 3/4-16 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 10
HH5F0751100 3/4-16 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 11
HH5F0751200 3/4-16 X 12 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 12
HH5F0751300 3/4-16 X 13 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 13
HH5F0751400 3/4-16 X 14 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 14
HH5F0751500 3/4-16 X 15 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 16 15
HH5F0500075 1/2-20 X 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 3/4
HH5F0500100 1/2-20 X 1 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 1
HH5F0500125 1/2-20 X 1 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 1 1/4
HH5F0500150 1/2-20 X 1 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 1 1/2
HH5F0500175 1/2-20 X 1 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 1 3/4
HH5F0500200 1/2-20 X 2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 2
HH5F0500225 1/2-20 X 2 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 2 1/4
HH5F0500250 1/2-20 X 2 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 2 1/2
HH5F0500275 1/2-20 X 2 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 1/2 20 2 3/4