| d |
Ds |
Dc |
Dk |
k |
h |
d1 |
b |
| Max. |
Min. |
Min. |
Min. |
| 1/4" |
0.2435 |
0.375 |
0.365 |
0.278 |
0.058 |
.058 |
.244 |
1 |
| 5/16" |
0.3053 |
0.469 |
0.457 |
0.348 |
0.074 |
.074 |
.306 |
1.125 |
| 3/8" |
0.3678 |
0.562 |
0.55 |
0.42 |
0.095 |
.095 |
.368 |
1.25 |
| 7/16" |
0.4294 |
0.656 |
0.642 |
0.489 |
0.109 |
.0109 |
.429 |
1.375 |
| 1/2" |
0.4919 |
0.750 |
0.735 |
0.562 |
0.129 |
.129 |
.493 |
1.5 |
| 9/16" |
0.5538 |
0.844 |
0.828 |
0.633 |
0.145 |
|
|
1.625 |
| 5/8" |
0.6163 |
0.938 |
0.921 |
0.705 |
0.166 |
.166 |
.555 |
1.75 |
| 3/4" |
0.7406 |
1.125 |
1.107 |
0.847 |
0.2 |
.200 |
.743 |
2 |
| 7/8" |
0.8647 |
1.312 |
1.293 |
0.987 |
0.234 |
.234 |
.866 |
2.25 |
| 1" |
0.9886 |
1.5 |
1.479 |
1.13 |
0.268 |
.268 |
.991 |
2.5 |
| 1-1/8" |
1.1086 |
1.688 |
1.665 |
1.271 |
0.31 |
.310 |
1.115 |
2.75 |
| 1-1/4" |
1.2336 |
1.875 |
1.852 |
1.414 |
0.35 |
.350 |
1.240 |
3 |
| 1-3/8" |
1.3568 |
2.062 |
2.038 |
1.556 |
0.392 |
|
|
3.25 |
| 1-1/2" |
1.4818 |
2.25 |
2.224 |
1.697 |
0.433 |
.433 |
1.489 |
3.5 |
Point Flange Bolt: Essential Characteristics and Uses
12 point flange bolts are specialized fasteners designed for applications
requiring high torque and precise alignment. Featuring a unique 12-point head, these bolts offer superior
grip and torque transfer compared to traditional hexagonal bolts. This makes them ideal for use in high-stress
environments such as automotive, aerospace, and heavy machinery applications. At Pankaj International, we
manufacture high-quality 12 point flange bolts that adhere to stringent industry standards, ensuring optimal
performance and reliability.
The 12-point head design of these bolts allows for a more secure fit and
greater torque transfer. Unlike traditional hex bolts, the 12-point configuration provides multiple
contact points for the wrench or socket, reducing the risk of slipping and stripping during installation. This
design is particularly advantageous in applications where high torque is required, as it enables more precise
and efficient fastening. The integrated flange also helps distribute the load evenly across the surface,
reducing the risk of deformation and ensuring a stable connection.
12 point flange bolts are typically manufactured from high-strength
materials such as alloy steel or stainless steel, which offer excellent tensile strength and resistance to wear.
These materials ensure that the bolts can withstand significant loads and stresses, making them suitable for
demanding applications. Additionally, our 12 point flange bolts are available with various surface
treatments, including zinc plating and black oxide, to enhance their resistance to corrosion and extend their
service life. This durability makes them suitable for both indoor and outdoor environments.
In conclusion, 12 point flange bolts are essential for applications
requiring high torque and precise alignment, offering superior performance and reliability. Their unique design
provides enhanced grip and torque transfer, making them ideal for use in automotive, aerospace, and heavy
machinery applications. At Pankaj International, we are dedicated to producing 12 point flange bolts that
meet the highest standards of quality and durability. For dependable fastening solutions that can handle the
most demanding conditions, contact us today to learn more about our range of fasteners and how we can meet your
specific needs