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Products - By Type And Design

Products

IHF Fasteners

IHF's ETA-certified fasteners are designed specifically for tensile loads.

Fields of application:

Wind power and foundations
General steel construction

ITH Round Nut RMS / RMZ

ITH Round Nuts certified by independent societies are preferably designed for the use of hydraulic friction- and torsion-free tightening (ITH Stretch Method). This involves the direct replacement of standard hexagon nuts with ITH Round Nuts.

The design of the ITH Round Nut is possible as

ITH RMS - ITH Round Nut Hexagon version
ITH RMZ - ITH Round Nut two-flat version

Customized designs are also possible. Both versions are also available as a compact version with smaller dimensions (ITH RMS / RMZ slim-line). The ITH Round Nuts are available as standard in thread sizes from M16 to M160, other thread sizes are available on request. The material is selected according to the corresponding application (including temperature dependence and corrosion protection). In principle, the materials used are of higher quality than those specified in the corresponding standards (e.g. DIN EN ISO 898, ASTM A193).

Technical Data

ITH RMS / RMZ

Pos.	Type Roundnut	ITH-Order-no.	D [mm]	d8 [mm]	h1 [mm]
1	RMS / RMZ 20-10	40.0012x-M20-10	20	34	20
2	RMS / RMZ 24-10	40.0012x-M24-10	24	43	24
3	RMS / RMZ 27-10	40.0012x-M27-10	27	46	27
4	RMS / RMZ 30-10	40.0012x-M30-10	30	52	30
5	RMS / RMZ 33-10	40.0012x-M33-10	33	57	33
6	RMS / RMZ 36-10	40.0012x-M36-10	36	62	36
7	RMS / RMZ 39-10	40.0012x-M39-10	39	67	39
8	RMS / RMZ 42-10	40.0012x-M42-10	42	72	42
9	RMS / RMZ 45-10	40.0012x-M45-10	45	77	45
10	RMS / RMZ 48-10	40.0012x-M48-10	48	82	48
11	RMS / RMZ 52-10	40.0012x-M52-10	52	92	52
12	RMS / RMZ 56-10	40.0012x-M56-10	56	97	56
13	RMS / RMZ 60-10	40.0012x-M60-10	60	107	60
14	RMS / RMZ 64-10	40.0012x-M64-10	64	112	64

Standard fasteners

Standardized bolts, nuts and washers.

Special fasteners and drawing parts

Tension Nut type TN

Tightening bolted connections with ITH Tension Nuts

Easy substitution of existing standard nuts

Achieving the required projecting thread

Using the hydraulic tensioning method and ITH Bolt Tensioning Cylinders, a certain projecting thread above the nut is required
If this projecting thread is not available the ITH Tension Nuts extends the thread to its required length. Existing bolts do not have to be replaced, when retrofitting bolt connections to hydraulic tensioning

Design