Washer DIN 6797J

Description

The DIN 6797J screw is a fastener with a specially shaped head, designed to provide a secure coupling in applications where high vibration resistance is required. Its geometry allows for an even distribution of the load, facilitating assembly and disassembly. Ideal for joints that require precision and stability.

Assembly

For the installation of the DIN 6797J lock washer, the washer must be placed on the bolt or screw before inserting it into the corresponding hole. Make sure that the convex face of the washer is oriented towards the surface of the part to be fastened, thus ensuring proper load distribution and avoiding loosening due to vibrations. Tighten the screw to its specified torque to ensure the integrity of the joint.

Materials

DIN 6797J washers are commonly manufactured from carbon steel, stainless steel (A2 and A4), and plastic (Nylon). Finishes include galvanizing, phosphating, nickel plating, and powder coatings, which improve resistance to corrosion and wear. The choice of material and finish depends on the application environment and mechanical requirements.

Technical data

Para / For	d1	d2	H	S
M2	2.2	4.5	0.6	0.3
M2.3	2.5	5	0.8	0.4
M2.5	2.7	5.5	0.8	0.4
M3	3.2	6	0.8	0.4
M3.5	3.7	7	1	0.5
M4	4.3	8	1.2	0.5
M5	5.3	10	1.2	0.6
M6	6.4	11	1.4	0.7
M7	7.4	12.5	1.6	0.8
M8	8.4	15	1.6	0.8
M10	10.5	18	1.8	0.9
M12	13	20.5	2	1
M14	15	24	2	1
M16	17	26	2.4	1.2
M18	19	30	2.8	1.4
M20	21	33	2.8	1.4
M22	23	36	3	1.5
M24	25	38	3	1.5
M27	28	44	3.2	1.6
M30	31	48	3.2	1.6

Technical drawing and installation parameters of the DIN 6797J internal serrated lock washers

This technical diagram defines the dimensions and geometric variables that are essential for the correct selection and installation of the DIN 6797J internal serrated lock washer, suitable when the teeth must remain hidden under the bolt head. It shows the critical dimensions linked to the specification tables, such as the thread size of the bolt or nut it accompanies, the inside diameter measured over the tips of the teeth (d1), the outside diameter (d2), the material thickness (S) and the maximum height of the washer in the free state (H). Complying with these dimensions ensures a firm anchorage on the bearing surface and a uniform distribution of pressure, preventing loosening under vibration.

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