Type B 12-Piont Flange Screws

Type B 12 point flange screws are specially designed for projects that require additional stability. It is easier for you to control when tightening. The flange base can distribute the pressure and prevent damage. Xiaoguo® Company has a rich inventory. You can contact us at any time.

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Product Description

Type B 12 point flange screw has 12 corners at the head and a flange plate at the bottom. It is easier to tighten and less likely to slip. The flange at the bottom is like a small gasket, which can increase the contact area with the fixed object and meet different installation requirements.

Product Parameters

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	5.6	6.7	8	11	13	15	17.5	22
Lf max	1.4	1.6	2.1	2.1	2.1	2.1	3.2	4.2
Lf min	0.7	0.8	1	1	1	1	1.6	2.1
r min	0.15	0.18	0.25	0.25	0.25	0.25	0.37	0.5

Application

Type B 12-piont screws are suitable for ultra-low sleeves. The shallow-head design is suitable for situations where standard flange bolts cannot be tightened, such as narrow engine compartments or compact electronic devices. Flanges can still be used as built-in gaskets. It can be used for conveyor belt motors or pump bases without locking gaskets.

Type B 12 point screws are used for assembling agricultural gearboxes. The PTO gearbox of a tractor is prone to mud and impact. They can seal the shell flanges in all seasons. The serrated bottom surface of the flange can bite metal and is more resistant to vibration and loosening than smooth gaskets. When conducting field maintenance, use 12-point impact sleeves to screw in these screws.

The turbine will heat up and turn red during operation. Type B 12-Piont screws can fix the heat insulation plate and will not loosen. The coefficient of thermal expansion of the flange matches that of the stainless steel insulation plate, which can prevent it from warping. Use a 12-point elastic head ratchet wrench near the exhaust pipe. Do not reuse - thermal cycling will weaken the strength of the metal. The absence of one will cause the wiring harness to melt.

Product Features

Type B 12 point flange screws have a unique structure. The unique structure of 12 corners and flange plate, with 12 corners, makes the tightening more precise. The flange plate can also prevent the screws from getting stuck in the fixed material. The surface has undergone galvanizing treatment to further enhance its anti-rust ability.

Type B 12-Piont flange screws