CSF - Colombo Special Fasteners

 

  Colombo Special Fasteners - Our Production
 

CSF - Colombo Special Fasteners - La Produzione

Used steels:
Low-medium and high carbon content steels are used, bought from leading European manufacturers according to our specifications.
Steels which are generally used are:
CB4FF -19MNB4 - 30MNB3 - C35 BORO - 34Cr4 -
41 Cr4 - 38NICrMO4 - 42NICrMO4

 

Surface treatment leading to total or partial hardening:
casehardening – carbonitriding – nitrating induction hardening

 

Surface protection treatment:
Electrolytic galvanising without Cr6 in the different thicknesses
Dacromet 320A - 320B - 500A - 500B
Geomet 321A-B
Geomet 500A - B
Geomet Plus
Deltatone/Deltaseal
Delta Protekt kl 100
Delta Protekt VH 301 GZ
Zintek 200 - Zintek/Techseal - ZintekTop
Phosphatising – Phosphatising + oiling Hot deep Galvanizing

 
 

Cold Forging Division:

Production through a cold forging technique of products in steel, starting from ø6 to ø33, in proportional lengths to the ø from l = 10 mm to l = 240 mm

 

Hot Forging Division:

Production through a hot forging technique followed by mechanical turning, milling, drilling, grinding, on of special parts, from ø min. 10 mm. to max ø 100 mm, in lengths from min. 10 mm to max 2,000 mm., whose weight go from min 50 gr. to max 25 kg.

 

Resistance classes:

4.6 - 5.6 - 8.8 - 9.8 - 10.9 - 12.9 - B7 - B7M

 

CSF - Colombo Special Fasteners - La Produzione
 

CSF - Colombo Special Fasteners - La Produzione

 

 

 

© 2008 - Colombo Special Fasteners S.r.l.
Via F.lli Rosselli, 1 - 24034 Cisano Bergamasco (BG) - Italia
Tel. +39 035 782105 - Fax +39 035 783760 - e-mail: info@coldforging.com