This 12 Point Flange Head Cap Screw is used in all kinds of real industrial and mechanical settings. You’ll find it on trucks, engines, agricultural machines, construction equipment, and factory assembly lines. It’s perfect for places that need solid, stable connections, especially when there’s high torque or heavy loads.
The 12-sided design lets you apply more force when installing, and the built-in flange means you don’t need extra washers. This speeds up assembly and makes the whole process easier. It’s commonly used in car manufacturing, machinery building, hydraulic systems, and structural maintenance.
Many repair shops and manufacturing plants use it for daily equipment repairs and assembly. It works well for both small fixes and large-scale production runs. The design helps keep parts firmly attached and reduces loosening from long-term vibration and movement. It fits many common working environments and meets standard requirements for different industrial projects.
| Mon | M5 | M6 | M8 | M10 | M12 | M14 | M16 | M20 |
| P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
| ds max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| ds min | 4.82 | 5.82 | 7.78 | 9.78 | 11.73 | 13.73 | 15.73 | 19.67 |
| dc max | 9.4 | 11.3 | 15 | 18.6 | 22.8 | 26.4 | 30.3 | 37.4 |
| h min | 1.7 | 2.1 | 2.7 | 3.4 | 4.1 | 4.8 | 5.7 | 7.2 |
| k max | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 20 |
| d1 max | 5.86 | 7.02 | 9.37 | 11.7 | 14.04 | 16.29 | 18.71 | 23.4 |
| d1 min | 5.71 | 6.82 | 9.17 | 11.5 | 13.84 | 16.06 | 18.48 | 23.17 |
| d2 max | 5.22 | 6.26 | 8.34 | 10.42 | 12.5 | 14.59 | 16.66 | 20.83 |
| d2 min | 5.07 | 6.06 | 8.14 | 10.22 | 12.3 | 14.36 | 16.43 | 20.6 |
| da max | 6.1 | 7.4 | 10.1 | 12.5 | 15.7 | 18.1 | 20.5 | 26.1 |
| Lf max | 1.4 | 1.6 | 2.1 | 2.1 | 2.1 | 2.1 | 3.2 | 4.2 |
| r max | 0.25 | 0.29 | 0.36 | 0.45 | 0.54 | 0.63 | 0.72 | 0.9 |
| r min | 0.1 | 0.12 | 0.16 | 0.2 | 0.24 | 0.28 | 0.32 | 0.4 |
| ds1 max | 4.54 | 5.39 | 7.26 | 9.08 | 10.95 | 12.77 | 14.77 | 18.49 |
| ds1 min | 4.36 | 5.21 | 7.04 | 8.86 | 10.68 | 12.5 | 14.5 | 18.16 |
| L1 max | 3.5 | 4 | 5 | 6 | 7 | 8 | 9 | 11 |
| L1 min | 2.5 | 3 | 4 | 5 | 6 | 7 | 8 | 10 |
We make this 12 Point Flange Head Cap Screw mainly with carbon steel and alloy steel. Popular choices are medium carbon steel and heat-treated alloy steel, since they hold good tensile strength and stay steady in use. We pick these materials to handle everyday heavy-duty work, so they won’t break or bend easily. Some versions use higher-grade alloy steel to meet tougher industrial rules. Common surface finishes are zinc plating and black oxide, which help prevent rust. Every material gets simple quality checks during production to meet standard requirements. The base material and heat treatment directly affect how well it works in real use. Using the right raw materials keeps the fastener stable under pressure, vibration, and long hours of use. It can work consistently in most normal industrial settings without losing strength or breaking early.
Can I get custom sizes for this 12 Point Flange Head Cap Screw, and what’s the lead time?
Yes, we accept custom size requests including non-standard thread pitches, shank lengths, and head dimensions. The lead time for customized orders is usually 7-10 working days after sample confirmation. Standard sizes are in stock for immediate shipment. We will send detailed drawings for approval before mass production to ensure full compliance with your requirements.