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Carbon steel fasteners manufacturers

CARBON STEEL FASTENERS MANUFACTURERS

Steel bolts production of class 8.8, class 10.9 and class 12.9

Bontempi VIBO as carbon steel fasteners manufacturer offers a wide range of screws and bolts made to ensure high strength in classes 8.8, 10.9 and 12.9. We produce unfinished products, white galvanized or with customized surface treatment, ensure excellent fastening strength on different types of installation.

Quality and punctuality for us are paramount, which is why we offer certified fasteners, guaranteed on time and ready to use.

Class 8.8

Steel bolts production 10.9

DIN 931 UNI 5737 ISO 4014

Diameter
Available from 5 to 64

Surface finish
Plain or galvanized white - Other surface finishings available upon request

Lengths

Steel bolts production 8.8

DIN 960 UNI 5738 ISO 8765

Diameter
Available from 10 to 30

Surface finish
Plain - Other surface finishings available upon request.

Lengths

Steel bolts production 12.9

DIN 933 UNI 5739 ISO 4017

Diameter
Available from 5 to 48

Surface finish
Plainor galvanized white - Other surface finishings available upon request 

Lengths

DIN 961 UNI 5740 ISO 8676

DIN 961 UNI 5740 ISO 8676

Diameter
Available from 10 to 24 

Surface finish

Plain - Other surface finishings available upon request.

Lengths

DIN 912 UNI 5931 ISO 4762

DIN 912 UNI 5931 ISO 4762

Diameter
Available from 5 to 48

Surface finish
Plain or galvanized white - Other surface finishings available upon request 

Lengths

DIN 7984 UNI 9327 ISO 7984

DIN 7984 UNI 9327 ISO 7984

Diameter
Available from 6 to 10

Surface finish 
Plain or galvanized white - Other surface finishings available upon request

Lengths

Class 10.9

DIN 931 UNI 5737 ISO 4014

DIN 931 UNI 5737 ISO 4014

Diameter
Available from 5 to 64

Surface finish
Plain - Other surface finishings  available upon request.

Lengths

DIN 960 UNI 5738 ISO 8765

DIN 960 UNI 5738 ISO 8765

Diameter
Available from 10 to 30

Surface finish 
Plain - Other surface finishings available upon request.

Lengths

DIN 933 UNI 5739 ISO 4017

DIN 933 UNI 5739 ISO 4017

Diameter
Available from 5 to 48

Surface finish 
Plain - Other surface finishings available upon request.

Lengths

DIN 961 UNI 5740 ISO 8676

DIN 961 UNI 5740 ISO 8676

Diameter
Available from 10 to 24 

Surface finish 
Plain - Other surface finishings available upon request. 

Lengths

DIN 912 UNI 5931 ISO 4762

DIN 912 UNI 5931 ISO 4762

Diameter
Available from 5 to 48

Surface finish 
Plain - Other surface finishings available upon request.

Lengths

DIN 7380 UNI 7380 ISO 7380

ISO 7380-1

Diameter
Available from 6 to 12

Surface finish 
Plain or galvanized white - Other surface finishings available upon request

Lengths

ISO 7380-2

ISO 7380-2

Diameter
Available from 6 to 8

Surface finish
Plain or galvanized white - Other surface finishings available upon request

Lengths

DIN 34805-1

DIN 34805-1

Diameter
Available from 6 to 10

Surface finish
Galvanized white - Other surface finishings available upon request

Lengths

DIN 7991 UNI 5933 ISO 10642

DIN 7991 UNI 5933 ISO 10642

Diameter
Available from 6 to 8

Surface finish
Plain or galvanized white - Other surface finishings available upon request

Lengths

Class 12.9

DIN 912 UNI 5931 ISO 4762

DIN 912 UNI 5931 ISO 4762

Diameter
Available from 5 to 48

Surface finish
Plain - Other surface finishings available upon request.

Lengths

STANDARD CARBON STEEL SCREWS

Classes
8.8 / 10.9 / 12.9

Diameters
M5 / M64

STANDARD STAINLESS STEEL SCREWS

Classes
A2-70 / A4-70

Diameters
M5 / M30

SPECIAL SCREWS - CUSTOM

Diameters
M5 / M64

For any screws and bolts required, in line with the customer’s needs.

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