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GN 653.2 Knurled Screws

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d₁	l₁	a₁	a₂	a₃	d₂	d₃	d₄ -0,2	d₅	h	k	l₂	l₃

M 4	15	2-4	4-8	8-10	16	8	3,2	4,5	5,5	3,5	5	2
M 4	17	4-6	6-10	10-12	16	8	3,2	4,5	5,5	3,5	5	2
M 4	19	6-8	8-12	12-14	16	8	3,2	4,5	5,5	3,5	5	2
M 4	21	8-10	10-14	14-16	16	8	3,2	4,5	5,5	3,5	5	2
M 5	18	2,5-4	4-10,5	10,5-12	20	10	4	5,5	6,5	4	6	2,5
M 5	20	4-6	6-12	12-14	20	10	4	5,5	6,5	4	6	2,5
M 5	22	6-8	8-14	14-16	20	10	4	5,5	6,5	4	6	2,5
M 5	26	8-12	12-16	16-18	20	10	4	5,5	6,5	4	6	2,5
M 6	24	3-6	6-13	13-16	24	12	4,8	6,5	8	5	8	3
M 6	26	6-8	8-16	16-18	24	12	4,8	6,5	8	5	8	3
M 6	30	8-12	12-18	18-22	24	12	4,8	6,5	8	5	8	3
M 6	34	12-16	16-22	22-26	24	12	4,8	6,5	8	5	8	3
M 8	30	4-8	8-16	16-20	30	16	6,5	8,5	9	6	10	4
M 8	34	8-12	12-20	20-24	30	16	6,5	8,5	9	6	10	4
M 8	38	12-16	16-24	24-28	30	16	6,5	8,5	9	6	10	4
M 8	42	16-20	20-28	28-32	30	16	6,5	8,5	9	6	10	4

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Specification

SteelST

Property class 5
Visible face fine turned
Black oxide finish

Strength Values of Screws

RoHS

Information

Knurled screws GN 653.2 can be used for to prevent loss of the thumb screw, due to the d₄ recessed portion of the stud.

When using, instead of a typical tapped and bore hole, it is necessary to provide tapped bores with a thread d₁ on each of the two elements to be assembled. Additionally, a clearance bore of d₅ on one or both sides must be cut.

Depending on the design and required clamping length a₁ ... a₃ of the component being attached, there are a number of assembly options as shown above.

How to order