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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
S12PT0620250 5/8-11 X 2 1/2 12 POINT FLANGE SCREW 5/8 11 2 1/2
S12PT0620275 5/8-11 X 2 3/4 12 POINT FLANGE SCREW 5/8 11 2 3/4
S12PT0620300 5/8-11 X 3 12 POINT FLANGE SCREW 5/8 11 3
S12PT0620325 5/8-11 X 3 1/4 12 POINT FLANGE SCREW 5/8 11 3 1/4
S12PT0620350 5/8-11 X 3 1/2 12 POINT FLANGE SCREW 5/8 11 3 1/2
S12PT0620400 5/8-11 X 4 12 POINT FLANGE SCREW 5/8 11 4
S12PT0620450 5/8-11 X 4 1/2 12 POINT FLANGE SCREW 5/8 11 4 1/2
S12PT0620500 5/8-11 X 5 12 POINT FLANGE SCREW 5/8 11 5
S12PT0620550 5/8-11 X 5 1/2 12 POINT FLANGE SCREW 5/8 11 5 1/2
S12PT0620600 5/8-11 X 6 12 POINT FLANGE SCREW 5/8 11 6
S12PT0620650 5/8-11 X 6 1/2 12 POINT FLANGE SCREW 5/8 11 6 1/2
S12PT0620700 5/8-11 X 7 12 POINT FLANGE SCREW 5/8 11 7
S12PT0620800 5/8-11 X 7 1/2 12 POINT FLANGE SCREW 5/8 11 7 1/2
S12PT0620900 5/8-11 X 8 12 POINT FLANGE SCREW 5/8 11 8
S12PT0370062 3/8-16 X 5/8 12 POINT FLANGE SCREW 3/8 16 5/8
S12PT0370075 3/8-16 X 3/4 12 POINT FLANGE SCREW 3/8 16 3/4
S12PT0370087 3/8-16 X 7/8 12 POINT FLANGE SCREW 3/8 16 7/8
S12PT0370100 3/8-16 X 1 1/2 12 POINT FLANGE SCREW 3/8 16 1 1/2
S12PT0370125 3/8-16 X 1 1/4 12 POINT FLANGE SCREW 3/8 16 1 1/4
S12PT0370150 3/8-16 X 1 1/2 12 POINT FLANGE SCREW 3/8 16 1 1/2
S12PT0370175 3/8-16 X 1 3/4 12 POINT FLANGE SCREW 3/8 16 1 3/4
S12PT0370200 3/8-16 X 2 12 POINT FLANGE SCREW 3/8 16 2
S12PT0370225 3/8-16 X 2 1/4 12 POINT FLANGE SCREW 3/8 16 2 1/4
S12PT0370250 3/8-16 X 2 1/2 12 POINT FLANGE SCREW 3/8 16 2 1/2
S12PT0370275 3/8-16 X 2 3/4 12 POINT FLANGE SCREW 3/8 16 2 3/4
S12PT0370300 3/8-16 X 3 12 POINT FLANGE SCREW 3/8 16 3
S12PT0370325 3/8-16 X 3 1/4 12 POINT FLANGE SCREW 3/8 16 3 1/4
S12PT0370350 3/8-16 X 3 1/2 12 POINT FLANGE SCREW 3/8 16 3 1/2
S12PT0370400 3/8-16 X 4 12 POINT FLANGE SCREW 3/8 16 4
S12PT0370450 3/8-16 X 4 1/2 12 POINT FLANGE SCREW 3/8 16 4 1/2
S12PT0370500 3/8-16 X 5 12 POINT FLANGE SCREW 3/8 16 5
S12PT0750125 3/4-10 X 1 1/4 12 POINT FLANGE SCREW 3/4 10 1 1/4
S12PT0750150 3/4-10 X 1 1/2 12 POINT FLANGE SCREW 3/4 10 1 1/2
S12PT0750175 3/4-10 X 1 3/4 12 POINT FLANGE SCREW 3/4 10 1 3/4
S12PT0750200 3/4-10 X 2 12 POINT FLANGE SCREW 3/4 10 2
S12PT0750225 3/4-10 X 2 1/4 12 POINT FLANGE SCREW 3/4 10 2 1/4
S12PT0750250 3/4-10 X 2 1/2 12 POINT FLANGE SCREW 3/4 10 2 1/2
S12PT0750275 3/4-10 X 2 3/4 12 POINT FLANGE SCREW 3/4 10 2 3/4
S12PT0750300 3/4-10 X 3 12 POINT FLANGE SCREW 3/4 10 3
S12PT0750325 3/4-10 X 3 1/4 12 POINT FLANGE SCREW 3/4 10 3 1/4
S12PT0750350 3/4-10 X 3 1/2 12 POINT FLANGE SCREW 3/4 10 3 1/2
S12PT0750400 3/4-10 X 4 12 POINT FLANGE SCREW 3/4 10 4
S12PT0750450 3/4-10 X 4 1/2 12 POINT FLANGE SCREW 3/4 10 4 1/2
S12PT0750500 3/4-10 X 5 12 POINT FLANGE SCREW 3/4 10 5
S12PT0750550 3/4-10 X 5 1/2 12 POINT FLANGE SCREW 3/4 10 5 1/2
S12PT0750600 3/4-10 X 6 12 POINT FLANGE SCREW 3/4 10 6
S12PT0750650 3/4-10 X 6 1/2 12 POINT FLANGE SCREW 3/4 10 6 1/2
S12PT0750700 3/4-10 X 7 12 POINT FLANGE SCREW 3/4 10 7
S12PT0250050 1/4-20 X 1/2 12 POINT FLANGE SCREW 1/4 20 1/2
S12PT0250062 1/4-20 X 5/8 12 POINT FLANGE SCREW 1/4 20 5/8