Nord-Lock Group Nord-Lock® 소개 Torquelator | Nord-Lock

매번 올바른 토크와 체결력 제공

일반적인 애플리케이션을 위한 가이드라인. 토큘레이터를 사용하여 볼트 체결부에 대한 축력과 그에 맞는 토크값을 계산하거나 토크 가이드라인에서 필요한 값을 찾아보세요.

기능

계산에 두 가지 방식을 사용합니다: Kellerman & Klein 및 VDI2230
미터법 또는 임페리얼법 단위와 호환
가는 나사산 또는 보통 나사산의 토크 값 가져오기
사전 지정 또는 사용자 지정 마찰 값

장점

정확한 체결 토크 및 체결력의 손쉬운 계산 가능
컴퓨터와 모든 모바일 기기에서 사용 가능
앱 내에서 모든 정보가 제공되므로 별도의 토크 표가 필요 없음

사용 방법

1. 계산 방법 선택

2. 볼트 크기 선택

3. 볼트 등급 선택

4. 윤활유 선택

앱 스토어에서 어플리케이션 찾기

토크와 축력의 중요성

정확한 토크와 체결력을 확보하는 것은 볼트 체결부를 고정하기 위한 첫번째 핵심 단계입니다. 토크 체결은 설계 엔지니어가 최적의 성능을 위해 미리 정립한 특정 축력 또는 클램프 하중을 볼트에 적용하기 위한 회전력을 가하는 과정입니다. 정확하게 교정된 공구를 사용하면 대부분의 산업용 볼트 체결부에 필요한 축력을 적용할 수 있습니다.

전문팀에 문의하기

볼트에 적합한 토크값을 구하는 데 도움이 필요하다면 기술 지원팀에 문의하세요.

문의하기

토크 가이드라인

가이드라인을 이용하여 Nord-Lock® 와셔와 다양한 윤활 유형에 맞는 모든 사이즈 볼트 M3 - M42의 토크 및 축력값을 확인할 수 있습니다.

마찰값은 코팅과 윤활제에 따라 달라질 수 있다는 점에 유의하세요.

Metric UNC

			Oil, G_F = 75% μ_th = 0.15, μ_h = 0.19		Cu/C paste, G_F = 75% μ_th = 0.13, μ_h = 0.18		Dry, G_F = 62% μ_th = 0.18, μ_h = 0.2
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M3	NL3	0.5	1.7	2.4	1.5	2.4	1.5	2
M4	NL4	0.7	3.8	4.2	3.6	4.2	3.5	3.5
M5	NL5	0.8	7.5	6.8	6.9	6.8	6.8	5.6
M6	NL6	1	13	9.7	12.1	9.7	12	8
M8	NL8	1.25	32	18	29	18	29	15
M10	NL10	1.5	62	28	57	28	56	23
M12	NL12	1.75	107	40	99	40	97	33
M14	NL14	2	170	55	157	55	155	46
M16	NL16	2	260	75	240	75	237	62
M18	NL18	2.5	364	92	336	92	331	76
M20	NL20	2.5	510	118	470	118	464	97
M22	NL22	2.5	696	146	642	146	634	120
M24	NL24	3	878	169	809	169	800	140
M27	NL27	3	1 ,284	221	1183	221	1172	182
M30	NL30	3.5	1750	269	1613	269	1596	222
M33	NL33	3.5	2360	333	2173	333	2155	275
M36	NL36	4	3043	392	2803	392	2776	324
M39	NL39	4	3931	468	3619	468	3589	387
M42	NL42	4.5	4860	538	4476	538	4436	445

_{Cu/C paste = Copper/graphite paste
Oil = WD40 has been used.
G_F = Ratio of yield point. When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point.
μ_th = Thread friction coefficient
μ_h = Under head friction coefficient
1 N = 0.225 lb
1 Nm = 0.738 ft-lb}

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 75% μ_th = 0.15, μ_h = 0.17		Cu/C paste, G_F = 75% μ_th = 0.13, μ_h = 0.17		Dry, G_F = 62% μ_th = 0.18, μ_h = 0.18
Product name	Bolt Size	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
NL3	M3	0.5	0.8	1.2	0.7	1.2	0.7	1.0
NL4	M4	0.7	1.8	2.1	1.7	2.1	1.6	1.7
NL5	M5	0.8	3.5	3.4	3.4	3.4	3.2	2.8
NL6	M6	1.0	6.2	4.8	5.9	4.8	5.6	4.0
NL8	M8	1.25	15	9.0	14	9.0	14	7.0
NL10	M10	1.5	29	14	28	14	27	12
NL12	M12	1.75	50	20	48	20	46	17
NL14	M14	2.0	80	28	76	28	73	23
NL16	M16	2.0	123	38	116	38	112	31
NL18	M18	2.5	172	46	163	46	157	38
NL20	M20	2.5	240	59	228	59	220	49
NL22	M22	2.5	328	73	311	73	301	60
NL24	M24	3.0	414	85	392	85	379	70
NL27	M27	3.0	605	110	573	110	555	91
NL30	M30	3.5	825	135	782	135	757	111
NL33	M33	3.5	1113	166	1053	166	1022	138
NL36	M36	4.0	1435	196	1358	196	1316	162
NL39	M39	4.0	1853	234	1753	234	1701	194
NL42	M42	4.5	2291	269	2169	269	2103	222

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 71% μ_th = 0.15, μ_h = 0.15		Cu/C paste, G_F = 75% μ_th = 0.13, μ_h = 0.15
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M3	NL3	0.5	2	3.2	2	3.4
M4	NL4	0.7	4.5	5.6	4.5	5.9
M5	NL5	0.8	8.9	9.1	8.9	9.6
M6	NL6	1	15.5	12.9	15.5	13.6
M8	NL8	1.25	37	23	37	25
M10	NL10	1.5	73	37	73	39
M12	NL12	1.75	126	54	126	57
M14	NL14	2	201	74	201	78
M16	NL16	2	307	100	306	106
M18	NL18	2.5	430	123	429	130
M20	NL20	2.5	602	156	600	165
M22	NL22	2.5	821	194	818	205
M24	NL24	3	1036	225	1034	238
M27	NL27	3	1514	294	1509	310
M30	NL30	3.5	2064	358	2058	378
M33	NL33	3.5	2782	443	2772	468
M36	NL36	4	3589	522	3576	551
M39	NL39	4	4632	624	4613	659
M42	NL42	4.5	5731	716	5709	757

_{Cu/C paste = Copper/graphite paste
Oil = WD40 has been used.
G_F = Ratio of yield point. When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point.}_{μ_th = Thread friction coefficient
μ_h = Under head friction coefficient
1 N = 0.225 lb
1 Nm = 0.738 ft-lb}

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F=71% μ_th= 0.15, μ_h= 0.13		Cu/C paste, G_F=75% μ_th = 0.13, μ_h = 0.14
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M3	NL3	0.5	2.2	3.9	2.3	4.1
M4	NL4	0.7	5.1	6.7	5.3	7.1
M5	NL5	0.8	10	10.9	10.3	11.5
M6	NL6	1	17.4	15.4	18	16.3
M8	NL8	1.25	42	28	43	30
M10	NL10	1.5	82	44	85	47
M12	NL12	1.75	142	65	146	68
M14	NL14	2	226	89	233	94
M16	NL16	2	345	120	355	127
M18	NL18	2.5	483	148	498	156
M20	NL20	2.5	676	188	696	198
M22	NL22	2.5	921	233	948	246
M24	NL24	3	1165	270	1199	286
M27	NL27	3	1700	352	1749	372
M30	NL30	3.5	2316	430	2386	454
M33	NL33	3.5	3124	532	3213	562
M36	NL36	4	4029	626	4145	662
M39	NL39	4	5199	748	5346	790
M42	NL42	4.5	6434	860	6617	908

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			A2-50, A4-50 Cu/C paste G_F = 65%, μ_th= 0.13, μ_h= 0.13		A4-70 Cu/C paste G_F = 65%, μ_th= 0.13, μ_h= 0.13		A4-80 Cu/C paste G_F = 65%, μ_th = 0.13, μ_h = 0.13
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M3	NL3 ss	0.5	0.4	0.7	0.8	1.5	1.1	2
M4	NL4 ss	0.7	0.9	1.2	1.8	2.6	2.4	3.4
M5	NL5 ss	0.8	1.7	1.9	3.6	4.1	4.8	5.5
M6	NL6 ss	1	2.9	2.7	6.3	5.9	8.4	7.8
M8	NL8 ss	1.25	7.0	5.0	15	11	20	14
M10	NL10 ss	1.5	14	8	30	17	39	23
M12	NL12 ss	1.75	24	12	51	25	68	33
M14	NL14 ss	2	38	16	81	34	108	45
M16	NL16 ss	2	58	21	124	46	165	61
M18	NL18 ss	2.5	81	26	173	56	231	75
M20	NL20 ss	2.5	113	33	243	72	323	95
M22	NL22 ss	2.5	149	39	330	89	440	118
M24	NL24 ss	3	195	48	418	103	557	137
M27	NL27 ss	3	284	63	609	134	812	179
M30	NL30 ss	3.5	388	77	831	164	1108	219
M36	NL36ss	4	674	111	1444	239	1925	319

_{Cu/C paste = Copper/graphite paste
G_F = Ratio of yield point. When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point.
μ_th = Thread friction coefficient
μ_h = Under head friction coefficient
1 N = 0.225 lb
1 Nm = 0.738 ft-lb}

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			A4-70 Cu/C paste G_F = 65%, μ_th= 0.13, μ_h= 0.13		A4-80 Cu/C paste G_F = 65%, μ_th = 0.13, μ_h = 0.13
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M3	NL3 ss-254	0.5	0.8	1.5	1.1	2
M4	NL4 ss-254	0.7	1.8	2.6	2.4	3.4
M5	NL5 ss-254	0.8	3.6	4.1	4.8	5.5
M6	NL6 ss-254	1	6.3	5.9	8.4	7.8
M8	NL8 ss-254	1.25	15	11	20	14
M10	NL10 ss-254	1.5	30	17	39	23
M12	NL12 ss-254	1.75	51	25	68	33
M14	NL14 ss-254	2	81	34	108	45
M16	NL16 ss-254	2	124	46	165	61
M18	NL18 ss-254	2.5	173	56	231	75
M20	NL20 ss-254	2.5	243	72	323	95
M22	NL22 ss-254	2.5	330	89	440	118
M24	NL24 ss-254	3	418	103	557	137
M27	NL27 ss-254	3	609	134	812	179
M30	NL30 ss-254	3.5	831	164	1108	219
M36	NL36ss-254	4	1444	239	1925	319

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 75% μ_th = 0.15, μ_h = 0.19		Cu/C paste, G_F = 75% μ_th = 0.13, μ_h = 0.18		Dry, G_F = 62% μ_th = 0,18, μ_h = 0,2
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M6	NLX6	1	13	9.7	12	9.7	12	8
M8	NLX8	1.25	32	18	29	18	29	15
M10	NLX10	1.5	62	28	57	28	56	23
M12	NLX12	1.75	107	40	99	40	97	33
M14	NLX14	2	170	55	157	55	155	46
M16	NLX16	2	260	75	240	75	237	62
M20	NLX20	2.5	510	118	470	118	464	97

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 71% μ_th = 0.15, μ_h = 0.13		Cu/C paste, G_F = 75% μ_th = 0.13, μ_h = 0.14
Bolt Size	Product Name	Pitch [mm]	Torque [Nm]	Clamp Load [kN]	Torque [Nm]	Clamp Load [kN]
M6	NLX6	1	15.5	12.9	15.5	13.6
M8	NLX8	1.25	37	23	37	25
M10	NLX10	1.5	73	37	73	39
M12	NLX12	1.75	126	54	126	57
M14	NLX14	2	201	74	201	78
M16	NLX16	2	307	100	306	106
M20	NLX20	2.5	602	156	600	165

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 75% μ_th = 0.08, μ_h = 0.18		Cu/C paste, G_F = 75% μ_th = 0.08, μ_h = 0.19		Dry, G_F = 62% μ_th = 0.19, μ_h = 0.2
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
#5	NL3	40	1.1	559	1.1	559	1.1	410
#6	NL3.5	32	1.4	640	1.5	640	1.4	469
#8	NL4	32	2.5	983	2.6	983	2.5	721
#10	NL5	24	3.7	1234	3.9	1234	3.7	905
1/4	NL1/4"	20	8.8	2235	9.1	2235	8.8	1639
5/16	NL8	18	18	3674	18	3674	18	2694
3/8	NL3/8"	16	31	5424	32	5424	31	3978
7/16	NL11	14	49	7439	50	7439	50	5455
1/2	NL1/2"	13	75	9920	77	9920	76	7271
9/16	NL14	12	107	12712	111	12712	109	9322
5/8	NL16	11	148	15786	153	15786	151	11576
3/4	NL3/4"	10	258	23335	267	23335	266	17112
7/8	NL22	9	414	32195	429	32195	427	23609
1	NL1"	8	627	42228	650	42228	645	30967
1 1/8	NL30	7	784	46860	812	46860	806	34364
1 1/4	NL33	7	1091	59427	1130	59427	1127	43580
1 3/8	NL36	6	1433	70864	1485	70864	1478	51967
1 1/2	NL39	6	1880	86147	1949	86147	1949	63174

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 71% μ_th = 0.08, μ_h = 0.14		Cu/C paste, G_F = 75% μ_th = 0.07, μ_h = 0.15
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
#5	NL3	40	1.3	748	1.3	790
#6	NL3.5	32	1.6	856	1.7	905
#8	NL4	32	2.9	1315	3.0	1389
#10	NL5	24	4.3	1651	4.6	1744
1/4	NL1/4"	20	10.0	2990	11.0	3159
5/16	NL8	18	20.0	4915	22	5192
3/8	NL3/8"	16	36	7256	38	7665
7/16	NL11	14	56	9951	60	10511
1/2	NL1/2"	13	86	13270	91	14017
9/16	NL14	12	123	16771	131	17963
5/8	NL16	11	170	21117	180	22307
3/4	NL3/4"	10	296	31214	315	32973
7/8	NL22	9	475	43067	505	45493
1	NL1"	8	718	56488	764	59671
1 1/8	NL30	7	1020	71192	1085	75203
1 1/4	NL33	7	1417	90284	1506	95370
1 3/8	NL36	6	1864	107660	1982	113725
1 1/2	NL39	6	2445	130878	2598	138251

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 65% μ_th = 0.06, μ_h = 0.1		Cu/C paste, G_F = 70% μ_th = 0.07, μ_h = 0.09
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
#5	NL3	40	1.2	840	1.2	905
#6	NL3.5	32	1.4	962	1.5	1036
#8	NL4	32	2.5	1478	2.7	1591
#10	NL5	24	3.8	1855	4.1	1998
1/4	NL1/4"	20	8.9	3360	9.5	3618
5/16	NL8	18	18.0	5522	19.0	5947
3/8	NL3/8"	16	31	8152	33	8779
7/16	NL11	14	49	11180	52	12040
1/2	NL1/2"	13	74	14909	79	16056
9/16	NL14	12	106	19106	113	20575
5/8	NL16	11	146	23726	156	25551
3/4	NL3/4"	10	254	35071	272	37769
7/8	NL22	9	407	48388	435	52110
1	NL1"	8	614	63468	656	68350
1 1/8	NL30	7	873	79988	932	86141
1 1/4	NL33	7	1208	101439	1290	109242
1 3/8	NL36	6	1594	120691	1702	130266
1 1/2	NL39	6	2083	147048	2225	158360

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			316ss Cu/C paste, G_F = 65%		304ss Cu/C paste, G_F = 70%
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
#5	NL3ss	40	0.6	342	0.7	342
#6	NL3.5ss	32	0.8	392	0.9	392
#8	NL4ss	32	1.4	602	1.5	602
#10	NL5ss	24	2.1	756	2.3	756
1/4	NL1/4”ss	20	5.1	1368	5.3	1368
5/16	NL8ss	18	10.0	2249	11.0	2249
3/8	NL3/8”ss	16	18	3320	19	3320
7/16	NL11ss	14	28	4553	30	4553
1/2	NL1/2”ss	13	43	6072	46	6072
9/16	NL14ss	12	62	7781	66	7781
5/8	NL16ss	11	85	9663	90	9663
3/4	NL3/4”ss	10	103	9884	110	9884
7/8	NL22ss	9	165	13637	176	13637
1	NL1”ss	8	250	17886	266	17886
1 1/8	NL30ss	7	355	22542	377	22542
1 1/4	NL33ss	7	494	28587	526	28587
1 3/8	NL36ss	6	649	34089	691	34089
1 1/2	NL39ss	6	853	41441	909	41441

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			316ss Cu/C paste, G_F = 65%		304ss Cu/C paste, G_F = 70%
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
#5	NL3ss-254	40	0.6	342	0.7	342
#6	NL3.5ss-254	32	0.8	392	0.9	392
#8	NL4ss-254	32	1.4	602	1.5	602
#10	NL5ss-254	24	2.1	756	2.3	756
1/4	NL1/4”ss-254	20	5.1	1368	5.3	1368
5/16	NL8ss-254	18	10.0	2249	11.0	2249
3/8	NL3/8”ss-254	16	18	3320	19	3320
7/16	NL11ss-254	14	28	4553	30	4553
1/2	NL1/2”ss-254	13	43	6072	46	6072
9/16	NL14ss-254	12	62	7781	66	7781
5/8	NL16ss-254	11	85	9663	90	9663
3/4	NL3/4”ss-254	10	103	9884	110	9884
7/8	NL22ss-254	9	165	13637	176	13637
1	NL1”ss-254	8	250	17886	266	17886
1 1/8	NL30ss-254	7	355	22542	377	22542
1 1/4	NL33ss-254	7	494	28587	526	28587
1 3/8	NL36ss-254	6	649	34089	691	34089
1 1/2	NL39ss-254	6	853	41441	909	41441

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 75% μ_th = 0.08, μ_h = 0.18		Cu/C paste, G_F = 75% μ_th = 0.08, μ_h = 0.19		Dry, G_F = 55% μ_th = 0.19, μ_h = 0.2
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
5/16	NLX8	18	18	3674	18	3674	18	2694
3/8	NLX3/8"	16	31	5424	32	5424	31	3978
1/2	NLX1/2"	13	75	9920	77	9920	76	7271
9/16	NLX14	12	107	12712	111	12712	109	9322
5/8	NLX16	11	148	15786	153	15786	151	11576
3/4	NLX3/4"	10	258	23335	267	23335	266	17112

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

			Oil, G_F = 71% μ_th = 0.08, μ_h = 0.14		Cu/C paste, G_F = 75% μ_th = 0.07, μ_h = 0.15
Bolt Size	Product Name	Pitch [TPI]	Torque [ftlb]	Clamp Load [lb]	Torque [ftlb]	Clamp Load [lb]
5/16	NLX8	18	20.0	4915	22	5192
3/8	NLX3/8"	16	36	7256	38	7665
1/2	NLX1/2"	13	86	13270	91	14017
9/16	NLX14	12	123	16771	131	17963
5/8	NLX16	11	170	21117	180	22307
3/4	NLX3/4"	10	296	31214	315	32973

_{Thread friction coefficients have theoretical values but are verified through testing.
Under head friction coefficients have been established by tests.}

Torque Guidelines Steel Construction Washers, Table 1

Tightening torques to achieve the preloading force for bolting assemblies that originally corresponded to k-class K1 (usually System HV according to EN 14399-4 or EN 14399-8).

		Torque method
Bolt size	Product name	Tightening torque M_TM,SC [Nm]	Preloading force ¹⁾without retightening F_p,C,red* [kN] (90%)	Preloading force F_p,C* [kN]
M12	NL12SC	165	45	50
M16	NL16SC	400	90	100
M20	NL20SC	800	144	160
M22	NL22SC	1.100	171	190
M24	NL24SC	1.300	198	220
M27	NL27SC	1.900	261	290
M30	NL30SC	2.300	315	350
M36	NL36SC	4.050	459	510

1) Differentation between Fp,C,red* and Fp,C* is only relevant for bolted categories B and C

Torque Guidelines Steel Construction Washers, Table 2

Pre-tightening torque for the combined method to achieve the preloading force for bolting assemblies that originally corresponded to k-class K1 (usually System HV according to EN 14399-4 or EN 14399-8).

		Combined method ¹⁾
Bolt size	Product name	Tightening torque M_CM,SC [Nm]	Preloading force F_p,C [kN]
M12	NL12SC	120	59
M16	NL16SC	290	110
M20	NL20SC	510	172
M22	NL22SC	720	212
M24	NL24SC	880	247
M27	NL27SC	1.300	321
M30	NL30SC	1.700	393
M36	NL36SC	2.700	572

1) For additional rotation angles  EN 1090-2 Table 21 applies

Torque Guidelines Steel Construction Washers, Table 3

Additional rotation for the second step in the combined method (8.8 and 10.9 bolts).

Total nominal thickness "t" of parts to be connected (including all packs and washers) d = bolt diameter	Further rotation to be applied, during the second step of tightening
	Degress	Part turn
t > 2d	60	1/6
2d ≤ t < 6d	90	1/4
6d ≤ t ≤ 10d	120	1/3
10d < t	No recomendations

Tightening angles when using the combined method varies depending on the clamp length, (t), in relation to bolt diameter, (d).

Torque Guidelines Steel Construction Washers, Table 4

Additional rotation for the second step in the combined method (8.8 and 10.9 bolts).

Designation	Nominal diameter	Torque method
Designation	Nominal diameter	Tightening torque M_T,SC,sec [Nm]
NL12SC	M12	80
NL16SC	M16	200
NL20SC	M20	360
NL22SC	M22	520
NL24SC	M24	640
NL27SC	M27	1.000
NL30SC	M30	1.320
NL36SC	M36	2.240

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Torque Guidelines Steel Construction Washers, Table 1

Torque Guidelines Steel Construction Washers, Table 2

Torque Guidelines Steel Construction Washers, Table 3

Torque Guidelines Steel Construction Washers, Table 4

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