12 Point Flange Screw With Reduced Shank

12 point head flange screw with reduced shank the head has 12 corners. The flange plate below is like a gasket, increasing the contact area with the connected material. The thin rod part in the middle is smaller in diameter compared to ordinary screw rods and is applied in some specific scenarios.

Product parameters

Mon	#10
P	32
d1	0.1
dc	0.375
ds max	0.171
ds min	0.161
e	0.278
h max	0.05
h min	0.04
k	0.26
r min	0.015
r max	0.025
s max	0.251
s min	0.243
w	0.13

Features

This 12 point head flange screw can be used for hydraulic pump installation. The high-pressure pump may shake, causing the installation bolts to loosen. Its short handle design can absorb neck vibration. Flange sealing can prevent oil leakage and does not require a separate gasket. Standard bolts will break within a few months, while these bolts can withstand more than 10,000 hours of operation.

12 point flange screw with reduced shank can be used for exhaust manifold connection. The turbine manifold may crack at the bolt holes due to thermal stress. They can solve this problem. The screw rod can be bent during a thermal cycle at 800°C to prevent stress fracture. When disassembling, it is more rust-resistant than the hexagonal head. Be sure to apply nickel anti-seizing agent. Its service life is twice as long as that of ordinary bolts.

These 12 point head flange screws can reduce weight. The narrower part below the thread can reduce material loss without sacrificing strength. It is highly suitable for weight-sensitive applications such as aircraft panels or racing cars. Flanges can still be used as built-in gaskets.

Advantage

12 point head flange screw with reduced shank has strong fastening force. It can withstand large torque when tightened. With the flange plate increasing the friction, it is also very difficult to loosen in a vibrating environment. It has reduced the safety hazards and equipment failures caused by loosening. Moreover, during installation, the thin rod design enables it to pass through thinner materials or small holes more easily without the need for laborious reaming. It is easy to operate and saves time and manpower.