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High-Quality 12 Point Bolts & Flange Screws


High-Torque 12 Point Bolts & Flange Screws | U-Bolt-It

What is a 12 Point Bolt?

A 12 point bolt (and its corresponding nut) features an alternative, star-like head design compared to standard hex socket cap screws. This unique twelve-point design permits significantly greater torque to be applied to the screw during installation. This higher torque capacity effectively eliminates the risk of rounding out or stripping the hex socket, a common point of failure that can occur with standard fasteners under heavy loads.

Common Industry Applications

Because of their increased durability and ease of installation with a 12-point socket wrench, U-Bolt-It highly recommends 12 point flange screws for heavy-duty manufacturing and high-vibration environments. Common applications include:

  • Aircraft and aerospace manufacturing
  • Heavy-duty mining equipment
  • Transportation infrastructure and vehicles
  • Agriculture manufacturing and machinery
  • Diesel engine and transmission assemblies

Available Manufacturing Materials

To ensure optimal performance and structural integrity in these demanding applications, our 12 point bolts are available in a variety of high-strength materials and custom protective finishes to resist corrosion and wear.

Request a Quote Today

Have a question about our manufactured 12 point bolts? Contact our team directly by phone or by using our secure online form to submit your project details. You can also give us a call today to speak directly with our fastener specialists. We look forward to speaking with you!

Types of 12 Point Bolts


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SKU NAME DIAMETER THREAD LENGTH DETAILS
S12PT0250075 1/4-20 X 3/4 12 POINT FLANGE SCREW 1/4 20 3/4
S12PT0250087 1/4-20 X 7/8 12 POINT FLANGE SCREW 1/4 20 7/8
S12PT0250100 1/4-20 X 1 12 POINT FLANGE SCREW 1/4 20 1
S12PT0250125 1/-20 X 1 1/4 12 POINT FLANGE SCREW 1/4 20 1 1/4
S12PT0250150 1/4-20 X 1 1/2 12 POINT FLANGE SCREW 1/4 20 1 1/2
S12PT0250175 1/4-20 X 1 3/4 12 POINT FLANGE SCREW 1/4 20 1 3/4
S12PT0250200 1/4-20 X 2 12 POINT FLANGE SCREW 1/4 20 2
S12PT0250225 1/4-20 X 2 1/4 12 POINT FLANGE SCREW 1/4 20 2 1/4
S12PT0250250 1/4-20 X 2 1/2 12 POINT FLANGE SCREW 1/4 20 2 1/2
S12PT0250275 1/4-20 X 2 3/4 12 POINT FLANGE SCREW 1/4 20 2 3/4
S12PT0250300 1/4-20 X 3 12 POINT FLANGE SCREW 1/4 20 3
S12PT0500100 1/2-13 X 1 12 POINT FLANGE SCREW 1/2 13 1
S12PT0500125 1/2-13 X 1 1/4 12 POINT FLANGE SCREW 1/2 13 1 1/4
S12PT0500150 1/2-13 X 1 1/2 12 POINT FLANGE SCREW 1/2 13 1 1/2
S12PT0500175 1/2-13 X 1 3/4 12 POINT FLANGE SCREW 1/2 13 1 3/4
S12PT0500200 1/2-13 X 2 12 POINT FLANGE SCREW 1/2 13 2
S12PT0500225 1/2-13 X 2 1/4 12 POINT FLANGE SCREW 1/2 13 2 1/4
S12PT0500250 1/2-13 X 2 1/2 12 POINT FLANGE SCREW 1/2 13 2 1/2
S12PT0500275 1/2-13 X 2 3/4 12 POINT FLANGE SCREW 1/2 13 2 3/4
S12PT0500300 1/2-13 X 3 12 POINT FLANGE SCREW 1/2 13 3
S12PT0500325 1/2-13 X 3 1/4 12 POINT FLANGE SCREW 1/2 13 3 1/4
S12PT0500350 1/2-13 X 3 1/2 12 POINT FLANGE SCREW 1/2 13 3 1/2
S12PT0500400 1/2-13 X 4 12 POINT FLANGE SCREW 1/2 13 4
S12PT0500450 1/2-13 X 4 1/2 12 POINT FLANGE SCREW 1/2 13 4 1/2
S12PT0500500 1/2-13 X 5 12 POINT FLANGE SCREW 1/2 13 5
S12PT0500550 1/2-13 X 5 1/2 12 POINT FLANGE SCREW 1/2 13 5 1/2
S12PT0500600 1/2-13 X 6 12 POINT FLANGE SCREW 1/2 13 6
S12PT0500620 1/2-13 X 5/8 12 POINT FLANGE SCREW 1/2 13 5/8
S12PT0500650 1/2-13 X 6 1/2 12 POINT FLANGE SCREW 1/2 13 6 1/2
S12PT0500700 1/2-13 X 7 12 POINT FLANGE SCREW 1/2 13 7
S12PT0500750 1/2-13 X 7 1/2 12 POINT FLANGE SCREW 1/2 13 7 1/2
S12PT0500800 1/2-13 X 8 12 POINT FLANGE SCREW 1/2 13 8
S12PT0500870 1/2-13 X 7/8 12 POINT FLANGE SCREW 1/2 13 7/8
S12PT1000200 1-8 X 2 12 POINT FLANGE SCREW 1 8 2
S12PT1000225 1-8 X 2 1/4 12 POINT FLANGE SCREW 1 8 2 1/4
S12PT1000250 1-8 X 2 1/2 12 POINT FLANGE SCREW 1 8 2 1/2
S12PT1000275 1-8 X 2 3/4 12 POINT FLANGE SCREW 1 8 2 3/4
S12PT1000300 1-8 X 3 12 POINT FLANGE SCREW 1 8 3
S12PT1000325 1-8 X 3 1/4 12 POINT FLANGE SCREW 1 8 3 1/4
S12PT1000350 1-8 X 3 1/2 12 POINT FLANGE SCREW 1 8 3 1/2
S12PT1000400 1-8 X 4 12 POINT FLANGE SCREW 1 8 4
S12PT1000450 1-8 X 4 1/2 12 POINT FLANGE SCREW 1 8 4 1/2
S12PT1000500 1-8 X 5 12 POINT FLANGE SCREW 1 8 5
S12PT1000550 1-8 X 5 1/2 12 POINT FLANGE SCREW 1 8 5 1/2
S12PT1000600 1-8 X 6 12 POINT FLANGE SCREW 1 8 6
S12PT1000650 1-8 X 6 1/2 12 POINT FLANGE SCREW 1 8 6 1/2
S12PT1000700 1-8 X 7 12 POINT FLANGE SCREW 1 8 7
S12PT1000800 1-8 X 8 12 POINT FLANGE SCREW 1 8 8
S12PT1120100 1 1/8-7 X 1 12 POINT FLANGE SCREW 1 1/8 8 1
S12PT1120250 1 1/8-7 X 2 1/2 12 POINT FLANGE SCREW 1 1/8 8 2 1/2