To fasten flanges and fittings inside pipes, you need various screws, washers and nuts. We offer stainless steel screws A2 with thread in sizes M10 - M30 and screws in lengths 40 - 120 mm, also steel screws with lengths 32 - 240mm. The nuts and washers are also available in both materials. Thanks to these three components, it is particularly easy to install a fitting to a flange.
screw M24x240 mm hexagon head aus stainless steel A2 Schlüsselweite SW36 nach ISO 4017
screw M30x130 mm hexagon head aus stainless steel A2 Schlüsselweite SW46 nach ISO 4017
screw M20x160 mm hexagon head aus steel plated Schlüsselweite SW30 nach ISO 4017
screw M24x85 mm hexagon head aus stainless steel A2 Schlüsselweite SW36 nach ISO 4017
screw M24x160 mm hexagon head aus steel plated Schlüsselweite SW36 nach ISO 4017
screw M20x180 mm hexagon head aus steel plated Schlüsselweite SW30 nach ISO 4017
thread pin M10x60 mm female hexagon head made of stainless steel A2 wrench-size SW05 acc.to ISO 4026
screw M06x50 mm hexagon head made of stainless steel A2 wrench-size SW10 acc.to ISO 4017
washer M10 aus steel plated Schlüsselweite nach DIN125
locking washer M05 made of stainless steel A2 wrench size acc. to locking washer form M 9217
screw M20x160 mm hexagon head aus stainless steel A2 Schlüsselweite SW30 nach ISO 4017
screw M08x60 mm hexagon head made of stainless steel A2 wrench-size SW13 acc.to ISO 4017
locking washer M06 made of stainless steel A2 wrench size acc. to locking washer form M 9217
screw M24x200 mm hexagon head aus steel plated Schlüsselweite SW36 nach ISO 4017
washer M18 made of stainless steel A2 acc.to DIN1441
screw M27x270 mm hexagon head aus stainless steel A2 Schlüsselweite SW41 nach ISO 4017
screw M27x250 mm hexagon head aus stainless steel A2 Schlüsselweite SW41 nach ISO 4017
screw M20x230 mm hexagon head aus stainless steel A2 Schlüsselweite SW30 nach ISO 4017
locking washer M08 made of stainless steel A2 wrench size acc. to locking washer form M 9217
screw M20x200 mm hexagon head aus steel plated Schlüsselweite SW30 nach ISO 4017
screw M20x150 mm hexagon head aus steel plated Schlüsselweite SW30 nach ISO 4017
screw M30x290 mm hexagon head aus stainless steel A2 Schlüsselweite SW46 nach ISO 4017
screw M24x170 mm hexagon head aus stainless steel A2 Schlüsselweite SW36 nach ISO 4017
screw M24x160 mm hexagon head aus stainless steel A2 Schlüsselweite SW36 nach ISO 4017
Special requests, spare parts or a quick support? Our staff will answer your questions and concerns immediately.
You can reach us from Monday to Friday at +497143 9666900 and any time at sales@nieruf.com
Commitment engenders trust. We stand by our word and are convinced that as a result not only our customers but also everyone we work with can rely on us.
We always strive to find the best solution for our customers. It is our goal and incentive to have completely satisfied customers.
Technical and commercial expertise form the basis for developing qualified solutions tailored precisely to the needs of our customers.
We do not adhere to rigid guidelines but instead focus on the individual wishes and needs of our customers. They are more important to us than internal company processes.
Contact For all questions we are available by phone
Mo - Fr 08:30 - 17:00
or send us an e-mail:
Resistance check 
Frequently asked questions 
Configurator 
Angle seat valves
Ball valves
Butterfly valves
Coaxial valves
Compensators
DISCO check valves
Flow control valve
Globe valves
Knife gate valve
Manometer gauge valve
Needle valves
Overflow valves
Pressure reducing valves
Safety valves
Sight glass
Solenoid valve
Strainer
check valves
diaphragm valve
vent-valve
Need help?
If you have any questions, we are available by phone from Monday to Friday from 8:30 a.m. to 5:00 p.m.
order via mail:
