HYTORC Nut

Fasteners

For critical applications requiring the highest level of bolt load control, the patented HYTORC Nut system provides industry-leading joint integrity. This three-piece fastener applies pure tension to the bolt to prevent thread damage and ensure bolt load accuracy. Available in a variety of materials to suit all applications, from extreme temperatures to harsh climates.

More Information

Tool Trade In

Bolt Tensioner - Calibrated Load Accuracy

No other bolting system provides the same level of repeatable accuracy, ensuring even bolt load to eliminate joint failure and unintentional nut loosening.

Tool Longevity

Other bolting systems put the reaction arm and square drive on opposite sides of the tool causing high stress in the body of the tool, which can lead to failure over time. The HYTORC Nut puts the action and reaction on the square drive axis to eliminate the majority of internal stress, and increase the lifetime of your tools.

Gall-free Removal

The HYTORC Nut is the only fastener that can guarantee the elimination of galled or damaged threads on installation and removal. These fasteners have been installed on various high temperature applications for ten years and longer, and were removed without damage to the bolts, providing tremendous savings by eliminating the need for bolt replacement.

Documentation

Cut Sheets

TN Series

CT Series

GT Series

SN Series

TN SERIES

GT SERIES

CT SERIES

SN SERIES

TURBINE STYLE LIMITED RADIUS NUT

Our most popular Nut! Designed to overcome the tight radial restrictions and high temperatures in steam turbine engines. When a bolted connection has a challenging counter bore or flanged radius, the TN-Series Nut will solve the problem.

CHEMICAL STYLE LIMITED RADIUS NUT

The CT Nut’s thicker outer sleeve minimizes stress and allows it to handle high loads at elevated temperatures. The through-bolt design makes them ideal for applications with high stud protrusions from the flange.

LOW CLEARENCE STYLE NUT

The low-profile SN Series is the ideal choice for tight overhead restrictions where traditional fasteners can’t fit. The through-bolt design is useful for situations where high stud extensions make standard nuts impractical.

GAS TURBINE STYLE NUT

Originally specified for Gas Turbine applications to handle elevated temperatures, high stress and greater load to breakout factors. For oversized applications where higher loads and breakout torques are needed.

Imperial

Metric

TN Series (Inch)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
01	014	7/8	1.400	1.313	0.197
02	100	1	1.600	1.500	0.225
03	102	1-1/8	1.800	1.688	0.254
04	104	1-1/4	2.000	1.875	0.281
05	106	1-3/8	2.200	2.063	0.310
06	108	1-1/2	2.400	2.250	0.338
07	110	1-5/8	2.600	2.438	0.366
08	112	1-3/4	2.800	2.625	0.394
09	114	1-7/8	3.000	2.813	0.422
10	200	2	3.200	3.000	0.450
11	204	2-1/4	3.600	3.375	0.506
12	208	2-1/2	4.000	3.750	0.563
13	212	2-3/4	4.400	4.125	0.619
14	-	-	4.535	4.253	0.638
15	300	3	4.800	4.500	0.675
16	-	-	5.040	7.725	0.709
17	304	3-14	5.200	4.875	0.731
18	308	3-1/2	5.600	5.250	0.788
19	312	3-3/4	6.000	5.625	0.844
20	400	4	6.400	6.000	0.900
21	404	4-1/4	6.800	6.375	0.956
22	408	4-1/2	7.200	6.750	1.013
23	412	4-3/4	7.600	7.125	1.069
24	500	5	8.000	7.500	1.125
25	504	5-1/4	8.400	7.875	1.181
26	508	5-1/2	8.800	8.250	1.238

TN Series (mm)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
01	022	M20	35.56	33.35	5.00
02	024	M24	40.64	38.10	5.72
03	027	M27	45.72	42.88	6.45
04	030	M30	50.80	47.63	7.14
05	033	M33	55.88	52.40	7.87
06	036	M36/M39	60.96	60.96	8.59
07	039	M42*	66.04	61.93	9.30
08	042	M45	71.12	66.68	10.01
09	045	M48	76.20	71.45	10.72
10	048	M52	81.28	76.20	11.43
11	052	M56	91.44	85.73	12.85
12	056	M64	101.60	95.25	14.30
13	064	M70	111.76	104.78	15.72
14	070	M72	115.19	108.03	16.21
15	072	M76	121.92	114.30	18.01
16	076	M80	128.02	120.02	18.01
17	080	-	132.08	123.83	18.57
18	-	M90	142.24	133.35	20.02
19	090	M95	152.40	142.88	21.44
20	095	M100	162.56	152.40	22.86
21	100	M110	172.72	161.93	24.28
22	110	M115	182.88	171.45	25.73
23	115	M120	193.04	180.98	27.15
24	120	M125	203.20	190.50	28.58
25	125	M130	213.36	200.03	30.00
26	130	M140	223.52	209.55	31.45

CT Series (Inch)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
01	014	7/8	1.660	1.429	0.201
02	100	1	1.811	1.559	0.220
03	102	1-1/8	2.038	1.754	0.247
04	104	1-1/4	2.264	1.949	0.275
05	106	1-3/8	2.491	2.144	0.302
06	-	-	2.717	2.339	0.330
07	108	1-1/2	2.943	2.533	0.357
08	110	1-5/8	3.170	2.728	0.384
09	112	1-3/4	3.396	2.923	0.412
10	114	1-7/8	3.623	3.118	0.439
11	200	2	3.925	3.378	0.476
12	204	2-1/4	4.226	3.638	0.513
13	208	2-1/2	4.830	3.914	0.586
14	212	2-3/4	5.283	4.547	0.614
15	-	-	5.434	4.677	0.659
16	300	3	5.736	4.937	0.696
17	-	-	6.038	5.197	0.732
18	304	3-1/4	6.340	5.457	0.769
19	308	3-1/2	6.793	5.846	0.824

CT Series (mm)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
01	022	M22	42.16	36.30	5.11
02	024	M24	46.00	39.30	5.59
03	027	M27	51.77	44.55	6.27
04	030	M30	57.51	49.50	6.99
05	033	M33	63.27	54.46	7.67
06	036	M36	69.01	59.41	8.38
07	039	M39	74.75	64.34	9.07
08	042	M42	80.52	69.29	9.75
09	045	M45	86.26	74.24	10.46
10	048	M48	92.02	79.20	11.15
11	052	M52	99.70	85.80	12.09
12	056	M56	107.34	92.41	13.03
13	064	M64	122.68	99.42	14.88
14	070	M70	134.19	115.49	15.60
15	072	M72	138.02	118.80	16.74
16	076	M76	145.69	125.40	17.68
17	080	M80	153.37	132.00	18.59
18	-	-	161.04	138.61	19.53
19	090	M90	172.54	148.49	20.93

SN Series (Inch)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
01	014	5/8-7/8	1.880	1.210	-
02	100	1	2.050	1.210	0.225
03	102	1-1/8	2.313	1.360	0.249
04	104	1-1/4	2.500	1.518	0.281
05	106	1-3/8	2.688	1.670	0.310
06	108	1-1/2	2.938	1.821	0.338
07	110	1-5/8	3.250	1.974	0.366
08	112	1-3/4	3.417	2.125	0.394
09	114	1-7/8	3.667	2.277	0.422
10	200	2	3.900	2.429	0.450
11	204	2-1/4	4.300	2.732	0.506
12	208	2-1/2	4.800	3.035	0.563
13	212	2-3/4	5.250	3.338	0.619
14	-	2-7/8	5.375	3.440	0.638
15	300	3	5.750	3.643	0.675
16	-	-	5.750	3.824	0.709
17	304	3-1/4	6.083	3.945	0.731
18	308	3-1/2	6.667	4.250	0.788
19	312	3-3/4	7.000	4.550	0.844
20	400	4	7.300	4.857	0.900
21	404	4-1/4	7.750	5.159	0.956
22	408	4-1/2	8.200	5.463	1.013
23	412	4-3/4	8.700	5.930	1.069

SN Series (mm)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
01	014	M20	52.07	30.73	-
02	024	M24	52.07	30.73	5.71
03	027	M27	58.67	34.54	6.47
04	030	M30	63.50	38.56	7.23
05	033	M33	68.33	42.42	7.81
06	036	M36/39	74.68	46.25	8.57
07	039	M42	82.55	50.14	9.33
08	042	M45	86.87	53.98	10.09
09	045	M48	93.22	57.91	10.66
10	048	M52	99.06	61.72	11.43
11	052	M56	109.22	69.34	12.95
12	056	M64	121.92	77.22	14.28
13	064	M70	133.35	84.84	15.81
14	070	M72	136.65	87.38	16.19
15	072	M76	146.05	92.53	17.14
16	076	M80	146.05	97.03	18.09
17	080	-	154.43	100.33	18.66
18		M90	169.42	107.95	20.95
19	090	M95	177.80	115.57	21.52
20	095	M100	185.42	123.44	22.86
21	100	M110	196.85	131.06	24.38
22	110	M115	208.28	138.76	25.71
23	115	M120	220.98	150.62	27.24

GT Series (Inch)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
02	100	1	1.850	1.648	1.000
03	102	1-1/8	2.081	1.823	1.125
04	104	1-1/4	2.313	2.146	1.250
05	106	1-3/8	2.544	2.334	1.375
06	108	1-1/2	2.775	2.487	1.500
07	110	1-5/8	3.006	2.656	1.625
08	112	1-3/4	3.238	2.750	1.750
09	114	1-7/8	3.469	3.094	1.875
10	200	2	3.700	3.145	2.000
11	204	2-1/4	4.163	3.540	2.250
12	208	2-1/2	4.625	4.073	2.500
13	212	2-3/4	5.088	4.349	2.750
14	214	2-7/8	5.244	4.477	2.834
15	300	3	5.550	4.787	3.000

GT Series (mm)

空白的大小	Size Code	Nominal Stud Size	OD	H	Max Stroke
02	024	M24	46.99	41.85	25.40
03	027	M27	52.86	46.30	28.58
04	030	M30	58.75	54.51	31.75
05	033	M33	64.62	59.28	34.93
06	036	M36/M39	70.49	63.17	38.10
07	042	M42*	76.35	67.46	41.28
08	045	M45	82.25	69.85	44.45
09	048	M48	88.11	78.59	47.63
10	052	M52	93.98	79.88	50.80
11	056	M56	105.74	89.92	57.15
12	064	M64	117.48	103.45	63.50
13	070	M70	129.24	110.46	69.85
14	072	M72	133.20	113.72	71.98
15	076	M76	140.97	121.59	76.20

HYTORC Nut