SEARCH
CATEGORIES

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


Filter By:
SKU NAME DIAMETER THREAD LENGTH DETAILS
HH5F0310500 5/16-24 X 5 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 5
HH5F0310525 5/16-24 X 5 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 5 1/4
HH5F0310550 5/16-24 X 5 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 5 1/2
HH5F0310575 5/16-24 X 5 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 5 3/4
HH5F0310600 5/16-24 X 6 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 6
HH5F0310650 5/16-24 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 6 1/2
HH5F0310700 5/16-24 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 7
HH5F0310750 5/16-24 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 7 1/2
HH5F0310800 5/16-24 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 5/16 24 8
HH50370050 3/8-16 X 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 1/2
HH50370062 3/8-16 X 5/8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 5/8
HH50370075 3/8-16 X 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 3/4
HH50370087 3/8-16 X 7/8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 7/8
HH50370100 3/8-16 X 1 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 1
HH50370125 3/8-16 X 1 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 1 1/4
HH50370150 3/8-16 X 1 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 1 1/2
HH50370175 3/8-16 X 1 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 1 3/4
HH50370200 3/8-16 X 2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 2
HH50370225 3/8-16 X 2 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 2 1/4
HH50370250 3/8-16 X 2 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 2 1/2
HH50370275 3/8-16 X 2 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 2 3/4
HH50370300 3/8-16 X 3 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 3
HH50370325 3/8-16 X 3 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 3 1/4
HH50370350 3/8-16 X 3 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 3 1/2
HH50370375 3/8-16 X 3 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 3 3/4
HH50370400 3/8-16 X 4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 4
HH50370425 3/8-16 X 4 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 4 1/4
HH50370450 3/8-16 X 4 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 4 1/2
HH50370475 3/8-16 X 4 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 4 3/4
HH50370500 3/8-16 X 5 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 5
HH50370525 3/8-16 X 5 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 5 1/4
HH50370550 3/8-16 X 5 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 5 1/2
HH50370575 3/8-16 X 5 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 5 3/4
HH50370600 3/8-16 X 6 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 6
HH50370650 3/8-16 X 6 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 6 1/2
HH50370700 3/8-16 X 7 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 7
HH50370750 3/8-16 X 7 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 7 1/2
HH50370800 3/8-16 X 8 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 8
HH50370850 3/8-16 X 8 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 8 1/2
HH50370900 3/8-16 X 9 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 9
HH50370950 3/8-16 X 9 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 9 1/2
HH50371000 3/8-16 X 10 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 10
HH50371100 3/8-16 X 11 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 11
HH50371200 3/8-16 X 12 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/8 16 12
HH50750100 3/4-10 X 1 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 10 15
HH50750125 3/4-10 X 1 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 10 1
HH50750150 3/4-10 X 1 1/2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 10 1 1/4
HH50750175 3/4-10 X 1 3/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 10 1 1/2
HH50750200 3/4-10 X 2 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 10 1 3/4
HH50750225 3/4-10 X 2 1/4 GRADE 5 HEX HEAD CAP SCREW ZINC PLATED 3/4 10 2