DIN 267

DIN 267 Specification

Scope

DIN 267 Standard Fasteners by Adfast Component LTD

Adfast Component LTD offers high-quality fasteners compliant with the DIN 267 standard, ensuring exceptional performance in extreme temperatures ranging from −200 °C to +700 °C. These fasteners provide superior low-temperature toughness and high-temperature strength, making them ideal for critical applications. They supplement DIN EN ISO 898-1, DIN EN 20898-2, and DIN EN ISO 898-6, allowing safe usage below −50 °C and above +150 °C.

Our DIN 267 fasteners are certified under AD 2000-Merkblatt W2 for austenitic and austenitic-ferritic steels, AD 2000-Merkblatt W7 for ferritic steel bolts and nuts, and AD 2000-Merkblatt W10 for low-temperature ferrous materials. Trust Adfast Component LTD for reliable fastening solutions that meet the highest industrial standards.

Related Specifications

Chemical composition

Austenitic steels
Steels and Nickel Alloys

Minimum temperature for continuous service (guideline value)	Steel grade^a	Property class
	Steel grade^a	Bolt	Nut
−60 °C ^b	A2L	50 70	50 70 80
	A2
	A3
−200 °C^c	A4L
	A4
	A5
NOTE No impairments of fastener reliability when used at higher service temperatures are known. When used at lower temperatures, the fasteners should be subjected to a suitability test for the intended application. a Copper content ≤ 1 % (reduced content compared to that specified in DIN EN ISO 3506-1 and -2). b Applies to bolts with head. c Applies to headless bolts.

Temperature ranges from DIN EN 10269			Material				Hardness HV of bolt and/or nut
min.	Shortterm service^a max.	Longterm service^b max.	symbol	number	name	condition^c	min.	max.
−120 °C	–	–	KB	1.568	X12Ni5	+ NT	157	203
−120 °C	–	–	KB	1.568	X12Ni5	+ QT	173	235
–	400 °C	500 °C	Y^d	1.1181	C35E	+ N	150	200
–	400 °C	500 °C	YK	1.1181	C35E	+ QT	165	210
–	400 °C	–	YB	1.5511	35B2 g	+ QT	165	210
−60 °C	500 °C	550 °C	KG	1.7218	25CrMo4	+ QT	195	240
−100 °C	500 °C	–	GC	1.7225	42CrMo4	+ QT	275	337
–	500 °C	550 °C	GA	1.7709	21CrMoV5-7	+ QT	225	272
–	600 °C	550 °C	GB	1.7711	40CrMoV4 6	+ QT	272	320
–	550 °C	600 °C	V^e	1.4923	X22CrMoV12-1	+ QT 1 ^e	256	303
–	550 °C	600 °C	VH^f	1.4923	X22CrMoV12-1	+ QT2 ^f	287	367
–	600 °C	600 °C	VW	1.4913	X19CrMoNbVN11-1	+ QT	287	367
–	650 °C	670 °C	S	1.4986	X7CrNiMoBNb16-16	+ WW + P	210	272
−196 °C	650 °C	650 °C	SD	1.498	X6NiCrTiMoVB25-15-2	+ AT + P	287	367
−196 °C	650 °C	800 °C	SB	2.4952	NiCr20TiAl	+ AT + P	320	417
a Maximum temperatures with specified proof strengths and tensile strengths. b Maximum temperatures with specified creep strengths and creep rupture strengths. c Heat treatment condition as defined in DIN EN 10269:2006-07, : + N: normalized + NT: normalized and tempered + QT: quenched and tempered + WW: warm worked + AT: solution annealed + P: precipitation hardened d Applies only to nuts. e Symbol V denotes grade X22CrMoV12-1 as in DIN EN 10269 with a 0,2 % proof strength Rp 0,2 ≥ 600 N/mm2 (+QT 1). f Symbol VH denotes grade X22CrMoV12-1 as in DIN EN 10269 with a 0,2 % proof strength Rp 0,2 ≥ 700 N/mm2 (+ QT 2). g See also VdTÜV-Werkstoffblatt WB 490.

Mechanical properties

Combinations
Test Load - Coarse Bolts
Test Load - Coarse Nuts
Test Load - Fine Bolts
Test Load - Coarse Nuts

Austenitic steels property class		Steels and nickel alloys														Test stressa Sp N/mm²
50	70	KB	YK	YB	KG	GA	GB	GC	V	VH	VW	S	SD	SB	Coarse pitch thread min. type 1	Fine pitch thread min. type 2
Nut	Austenitic steels property class	50	○	–	–	–	–	–	–	–	–	–	–	–	–	–	–	629^b	725^b
		70	○	○	–	–	–	–	–	–	–	–	–	–	–	–	–	800^b	875^b
		80	●	●	–	–	–	–	–	–	–	–	–	–	–	–	–	886^b	950^b
	Steels and nickel alloys	KB	–	–	●	–	–	–	–	–	–	–	–	–	–	–	–	654	748
		Y	–	–	–	○	○	○	–	–	–	–	–	–	–	–	–	714	800
		YK	–	–	–	●	●	●	–	–	–	–	–	–	–	–	–	714	800
		YB	–	–	–	○	○	○	–	–	–	–	–	–	–	–	–	714	800
		KG	–	–	–	–	–	○	●	–	–	–	–	–	–	–	–	800	875
		GA	–	–	–	–	–	●	●	●	●	–	–	–	–	–	–	937	995
		GB	–	–	–	–	–	–	○	○	○	–	–	–	–	–	–	937	995
		GC	–	–	–	–	–	–	○	○	○	–	–	–	–	–	–	937	995
		V	–	–	–	–	–	–	–	–	–	○	○	○	–	–	–	971	1025
		VH	–	–	–	–	–	–	–	–	–	○	○	○	–	–	–	971	1025
		VW	–	–	–	–	–	–	–	–	–	○	○	○	–	–	–	971	1025
		S	–	–	–	–	–	–	–	–	–	–	–	–	○	–	–	775	838
		SD	–	–	–	–	–	–	–	–	–	–	–	–	–	○	–	971	1025
		SB	–	–	–	–	–	–	–	–	–	–	–	–	–	–	○	1057	1100
Bolt	Tensile strength Rm N/mm²	max.	–	–	710	650	650	750	850	1000	1060	950	1050	1050	850	1150	1300
Bolt	Tensile strength Rm N/mm²	min.	500	700	530	500	500	600	700	850	860	800	900	900	650	900	1000
Preferred combination ○ Permitted combination – Not recommended a The test stress specified takes into account the fact that the hardness of the test mandrel used in the proof load test is greater than the hardness of the bolts with which the nuts are combined. As a result, the test stress is always higher than the highest minimum tensile strength of the bolt recommended for use in the combination b The test stresses given here are higher than those specified in DIN EN ISO 3506-2 in order to identify fully loadable nuts in the proof load test. While nuts of property classes 70 and 80 to DIN EN ISO 3506-2 with small diameters produced in large batches are usually cold-formed and property class 50 is only supplied hot-formed for larger diameters, special nuts to DIN 267-13 are required to be machined from steel bars when produced in small batches. As these bars obtain their strength through strainhardening (drawing), with the result that their mechanical properties are not uniform over their cross section, there is a risk that the nuts manufactured from such bars will achieve the low test stress in the proof load test to DIN EN ISO 3506-2 using a hardened mandrel, but that they will fail before the minimum failure load is reached when they are combined with a softer bolt. For this reason, it has been deemed necessary to specify higher test stresses.

Thread d	Stress Area A_{s, Nenn}	Austenitic steels of property class		Steels and nickel alloys
Thread d	Stress Area A_{s, Nenn}	50	70	KB	YK, YB	KG	GA	GB	GC	V	VH, VW	S	SD	SB
M3	area	2,52	3,52	2,67	2,52	3,02	3,52	4,28	4,33	4,02	4,53	3,27	4,53	5,03
M3,5	6,78	3,39	4,75	3,59	3,39	4,07	4,75	5,76	5,83	5,42	6,10	4,41	6,10	6,78
M4	8,78	4,39	6,15	4,65	4,39	5,27	6,15	7,46	7,55	7,02	7,90	5,71	7,90	8,78
M5	14,2	7,10	9,94	7,53	7,1	8,52	9,94	12,1	12,2	11,4	12,8	9,23	12,8	14,2
M6	20,1	10,1	14,1	10,7	10,1	12,1	14,1	17,1	17,3	16,1	18,1	13,1	18,1	20,1
M7	28,9	14,5	20,2	15,3	14,5	17,3	20,2	24,6	24,9	23,1	26,0	18,8	26,0	28,9
M8	36,6	18,3	25,6	19,4	18,3	22,0	25,6	31,1	31,5	29,3	32,9	23,8	32,9	36,6
M10	58,0	29,0	40,6	30,7	29,0	34,8	40,6	49,3	49,9	46,4	52,2	37,7	52,2	58,0
M12	84,3	42,2	59,0	44,7	42,2	50,6	59,0	71,7	72,5	67,4	75,9	54,8	75,9	84,3
M14	115	57,5	80,5	61,0	57,5	69,0	80,5	97,8	98,9	92,0	104	74,8	104	115
M16	157	78,5	110	83,2	78,5	94,2	110	133	135	126	141	102	141	157
M18	192	96,0	134	102	96,0	115	134	163	165	154	173	125	173	192
M20	245	123	172	130	123	147	172	208	211	196	221	159	221	245
M22	303	152	212	161	152	182	212	258	261	242	273	197	273	303
M24	353	177	247	187	177	212	247	300	304	282	318	229	318	353
M27	459	230	–	243	230	275	321	390	395	367	413	298	413	459
M30	561	281	–	297	281	337	393	477	482	449	505	365	505	561
M33	694	347	–	368	347	416	486	590	597	555	625	451	625	694
M36	817	409	–	433	409	490	572	694	703	654	735	531	735	817
M39	976	488	–	517	488	586	683	830	839	781	878	634	878	976

Thread d	Stress area A_{s, Nenn}	Austenitic steels of property class			Steels and nickel alloys
Thread d	Stress area A_{s, Nenn}	50^a	70^a	80^a	KB	Y, YK, YB	KG	GA, GB, GC	V, VH, VW	S	SD	SB
M3	5,03	3,16	4,02	4,46	3,29	3,59	4,02	4,71	4,88	3,81	4,88	5,32
M3,5	6,78	4,26	5,42	6,01	4,43	4,84	5,42	6,35	6,58	5,13	6,58	7,17
M4	8,78	5,52	7,02	7,78	5,74	6,27	7,02	8,23	8,53	6,65	8,53	9,28
M5	14,2	8,93	11,4	12,6	9,29	10,1	11,4	13,3	13,8	10,7	13,8	15,0
M6	20,1	12,6	16,1	17,8	13,1	14,4	16,1	18,8	19,5	15,2	19,5	21,2
M7	28,9	18,2	23,1	25,6	18,9	20,6	23,1	27,1	28,1	21,9	28,1	30,5
M8	36,6	23,0	29,3	32,4	23,9	26,1	29,3	34,3	35,5	27,7	35,5	38,7
M10	58,0	36,5	46,4	51,4	37,9	41,4	46,4	54,3	56,3	43,9	56,3	61,3
M12	84,3	53,0	67,4	74,7	55,1	60,2	67,4	79,0	81,9	63,8	81,9	89,1
M14	115	72,3	92,0	102	75,2	82,1	92,0	108	112	87,1	112	122
M16	157	99	126	139	103	112	126	147	152	119	152	166
M18	192	121	154	170	126	137	154	180	186	145	186	203
M20	245	154	196	217	160	175	196	230	238	185	238	259
M22	303	191	242	268	198	216	242	284	294	229	294	320
M24	353	222	282	313	231	252	282	331	343	267	343	373
M27	459	289	–	–	300	328	367	430	446	347	446	485
M30	561	353	–	–	367	401	449	526	545	425	545	593
M33	694	437	–	–	454	496	555	650	674	525	674	734
M36	817	514	–	–	534	583	654	766	793	618	793	864
M39	976	614	–	–	638	697	781	915	948	739	948	1032
a See also footnote b in Table 3 for proof loads higher than in DIN EN ISO 3506-2

Thread d	Stress area A_{s, Nenn}	Austenitic steels of property class		Steels and nickel alloys
Thread d	Stress area A_{s, Nenn}	50	70	KB	YK, YB	KG	GA	GB	GC	V	VH, VW	S	SD	SB
M8 × 1	39,2	19,6	27,4	20,8	19,6	23,5	27,4	33,3	33,7	31,4	35,3	25,5	35,3	39,2
M10 × 1	64,5	32,3	45,2	34,2	32,3	38,7	45,2	54,8	55,7	51,6	58,1	41,9	58,1	64,5
M10 × 1,25	61,2	30,6	42,8	32,4	30,6	36,7	42,8	52,0	52,6	49,0	55,1	39,8	55,1	61,2
M12 × 1,25	92,1	46,1	64,5	48,8	46,1	55,3	64,5	78,3	79,2	73,7	82,9	59,9	82,9	92,1
M12 × 1,5	88,1	44,1	61,7	46,7	44,1	52,9	61,7	74,9	75,8	70,5	79,3	57,3	79,3	88,1
M14 × 1,5	125	62,5	88	66,3	62,5	75,0	87,5	106	108	100	113	81,3	113	125
M16 × 1,5	167	83,5	117	88,5	83,5	100	117	142	144	134	150	109	150	167
M18 × 1,5	215	108	151	114	108	129	151	183	185	172	194	140	194	215
M18 × 2	204	102	143	108	102	122	143	173	175	163	184	133	184	204
M20 × 1,5	272	136	190	144	136	163	190	231	234	218	245	77	245	272
M20 × 2	258	129	181	137	129	155	181	219	222	206	232	168	232	258
M22 × 1,5	333	167	233	176	165	200	233	283	286	266	300	216	300	333
M22 × 2	318	159	223	169	159	191	223	270	273	254	286	207	286	318
M24 × 2	384	192	269	204	192	230	269	326	330	307	346	250	346	384
M27 × 2	496	248	–	263	248	298	347	422	427	397	446	322	446	496
M30 × 2	621	311	–	329	311	373	435	528	534	497	559	404	559	621
M33 × 2	761	381	–	403	381	457	533	647	654	609	685	495	685	761
M36 × 3	865	433	–	458	433	519	606	735	744	692	779	562	779	865
M39 × 3	1030	515	–	546	515	618	721	876	886	824	927	670	927	1030

Thread d	Stress area A_{s, Nenn}	Austenitic steels of property class			Steels and nickel alloys
Thread d	Stress area A_{s, Nenn}	50^a	70^a	80^a	KB	YB	KG	GC	VW	S	SD	SB
M8 × 1	39,2	28,4	34,3	37,2	29,3	31,4	34,3	39,0	40,2	32,8	40,2	43,1
M10 × 1	64,5	46,8	56,4	61,3	48,2	51,6	56,4	64,2	66,1	54,1	66,1	71,0
M10 × 1,25	61,2	44,4	53,6	58,2	45,8	49,0	53,6	60,9	62,7	51,3	62,7	67,3
M12 × 1,25	92,1	66,8	80,6	87,5	68,9	73,7	80,6	91,6	94,4	77,2	94,4	101,3
M12 × 1,5	88,1	63,9	77,1	83,7	65,9	70,5	77,1	87,7	90,3	73,8	90,3	96,9
M14 × 1,5	125	90,6	109	119	93,5	100	109	124	128	105	128	138
M16 × 1,5	167	121	146	159	125	134	146	166	171	140	171	184
M18 × 1,5	215	156	188	204	161	172	188	214	220	180	220	237
M18 × 2	204	148	179	194	153	163	179	203	209	171	209	224
M20 × 1,5	272	197	238	258	203	218	238	271	279	228	279	299
M20 × 2	258	187	226	245	193	206	226	257	264	216	264	284
M22 × 1,5	333	241	291	316	249	266	291	331	341	279	341	366
M22 × 2	318	231	278	302	238	254	278	316	326	266	326	350
M24 × 2	384	278	336	365	287	307	336	382	394	322	394	422
M27 × 2	496	360	–	–	371	397	434	494	508	416	508	546
M30 × 2	621	450	–	–	465	497	543	618	637	520	637	683
M33 × 2	761	552	–	–	569	609	666	757	780	638	780	837
M36 × 3	865	627	–	–	647	692	757	861	887	725	887	952
M39 × 3	1030	747	–	–	770	824	901	1025	1056	863	1056	1133
a See also footnote b in Table 3 for proof loads higher than in DIN EN ISO 3506-2.

Coating Specifications

Renowned Brands

Marking

Product Shall be Marked with our manufacturing trade mark Adfast Component LTD along with the designated Grade.
Grade and manufacturer’s identification symbols shall be applied to one end of studs and to the heads of bolts and screws of all sizes. (If the available area is inadequate, the grade symbol may be marked on one end and the manufacturer’s identification symbol marked on the other end.) For bolts and screws smaller than 1⁄4 in. [6 mm] in diameter and studs smaller than 3⁄8 in. [10 mm] in diameter and for 1⁄4 in. [6 mm] in diameter studs requiring more than a total of three symbols, the marking shall be a matter of agreement between the purchaser and the manufacturer.

Grade	Number	Marking
DIN 267 X12Ni5	1.568	TB KB
DIN 267 C35E	1.1181	TB Y
DIN 267 C35E	1.1181	TB YK
DIN 267 35B2^g	1.5511	TB YB
DIN 267 25CrMo4	1.7218	TB KG
DIN 267 42CrMo4	1.7225	TB GC
DIN 267 21CrMoV5-7	1.7709	TB GA
DIN 267 40CrMoV4 6	1.7711	TB GB
DIN 267 X22CrMoV12-1	1.4923	TB V
DIN 267 X22CrMoV12-1	1.4923	TB VH
DIN 267 X19CrMoNbVN11-1	1.4913	TB VW
DIN 267 X7CrNiMoBNb16-16	1.4986	TB S
DIN 267 X6NiCrTiMoVB25-15-2	1.498	TB SD
DIN 267 NiCr20TiAl	2.4952	TB SB

Product

Precision Components

Contract Manufacturing

Fastener

Resources

materials

Technical