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DIN 6303

Knurled nuts

Steel / Stainless Steel

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Description

Specification

Types

Type A: without dowel hole

Type B: with dowel hole

Version in Steel

Tensile strength class 5

blackened

Version in Stainless Steel AISI 303 NI

matte shot-blasted

Information

The dowel bore d₅ in the knurled nut DIN 6303 is designed for the use of clamping or notch pins.

Knurled nuts DIN 6303 with H7 bore and the size M12 are not provided on the official standard sheet. In addition, the knurling divisions are larger than the DIN standard for better grip.

Technical information

ISO-Fundamental Tolerances

Stainless Steel characteristics

DIN 6303-NI

	d₁	d₃	d₄	d₅ H11	e	h	k	l
Code										Actions
DIN 6303-M5-A-NI	M5	14	20	-	-	12	8	7	16
DIN 6303-M5-B-NI	M5	14	20	1.5	2.5	12	8	7	15
DIN 6303-M6-A-NI	M6	16	24	-	-	14	10	8	27
DIN 6303-M6-B-NI	M6	16	24	1.5	2.5	14	10	8	27
DIN 6303-M8-A-NI	M8	20	30	-	-	17	12	10	48
DIN 6303-M8-B-NI	M8	20	30	2	3	17	12	10	48
DIN 6303-M10-A-NI	M10	28	36	-	-	20	14	12	83
DIN 6303-M10-B-NI	M10	28	36	3	4	20	14	12	85
DIN 6303-M12-A-NI	M12	32	40	-	-	24	16	16	132
DIN 6303-M12-B-NI	M12	32	40	4	4	24	16	16	132

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