Srubena - Cold and Hot-Forged Steel Railway Fasteners

ŚRUBENA UNIA was founded in 1832 and it is now one of Europe’s leading producers of steel fastening elements such as bolts, nuts, screws, rivets and railway fasteners.

Qualified staff and modern machinery maintain the highest quality standards for our range of 5,000 different types of products, all of which are manufactured according to PN, ANSI, BS, GOST, DIN, ISO norms.

HIGH-TENSILE RAILWAY FASTENING ELEMENTS

ŚRUBENA UNIA is a member of the European Industrial Fasteners Institute (EIFI). The company is widely known as a reliable exporter, supplying wholesalers, the German railway group (DB), and the Swiss and Swedish railroad industries. We also provide some leading automotive producers with special, high-tensile fastening elements.

ŚRUBENA UNIA’s factory is operating under the EN ISO 9001:2000 and ISO/TS 16949:2002 quality management systems, as well possessing other certificates including:

• AD 2000 - Merkblatt W0/TRD 100 – for high-pressure usage
• 97/23/EG - system certificate for high-pressure usage
• Ü Certificate - for construction engineering
• 14001 - environmental management certificate

HEXAGONAL RAILWAY BOLTS AND RAILWAY NUTS

We supply a range of hexagonal bolts and nuts to the railway industry. Our range of products includes M5-M36 and mechanical property class: 3.6 up to 12.9. We offer a range of with various kinds of surface finishing including protective finishing, lubrication finishing and pre-application coatings:

• Protective coatings - plain, hot-dip galvanised, zinc-plated (yellow chromate or blue chromate with CrIV-free and other colours passivation), Dacromet
• Lubrication coatings: Gleitmo
• Pre-application coatings: Loctite, Precote, Scotchgrip

FASTENERS FOR RAILWAY TRACKS

ŚRUBENA UNIA is one of the primary suppliers of railway fasteners to the German railway group (DB). The railway elements we offer are of the highest quality and are approved by Q1 certification.

We offer products such as:

• Railway sleeper screws
• Railway clip bolts
• Railway switch bolts
• Fish bolts

HV – CONNECTIONS FOR STEEL CONSTRUCTIONS

Friction grip sets are specifically intended for the construction industry and wind turbine engineering sector. Our high-tensile fasteners are competing with leading European producers offering highest quality and attractive price level. We offer three types of connections: hexagon bolts, hexagon nuts and washers for tensile structural bolting.

Hexagon bolts with large widths across flats:

• DIN 6914 - GRADE: 10.9
• Diameter range: M12 - M36
• Length range: 30mm - 400mm

Hexagon nuts with large widths across flats:

• DIN 6915 - GRADE: 10
• Diameter range : M12 - M36

Washers for tensile structural bolting:

• DIN 6916 - C45
• Matched to the diameters: M12 - M36

T-HEAD BOLTS, THREADED RODS AND OTHER SPECIAL FASTENERS

ŚRUBENA UNIA also produces other shaped parts such as t-head bolts, threaded rods and other special railway fasteners. We can provide these products as standard or as according customers’ specifications.