Metal Processing Company (Zakład Obróbki Metali) in our basic activity facusing on producing bolts, studs, studbolts, nuts.


Products are manufactured according to:

  • Polish standards – PN

  • European standards – ISO

  • German standards – DIN

  • American Standards – ASME/ANSI

  • dokumentation provided by customers


  • Metric thread – different thread pitch

  • British Standard Whitworth thread per inch BSW, BSF, G, Rp, R, Rc

  • Brigg’s tapered thread NPT, NPTF

  • Trapezoid threads - Tr

  • unified inch threads – UNC, UN, UNF, UNEF

Grade of steels

  • carbon steels in grades of strength 3.6, 4.6, 4.8, 5.6, 5.8, 6.8, 8.8, 9.8

  • steels for fasteners with specific properties in high or low temperature according PN-EN 10269 standard in grades C35E (1.1181), C45E (1.1191), 25CrMo4 (1.7218), 24CrMo5 (1.7258), 42CrMo4 (1.7225), 40CrMoV4-6 (1.7711), 21CrMoV5-7 (1.7709), 21CrMoV5-11 (1.8070), 34CrNiMo6 (1.6582),

  • boiler steel in grades 16Mo3 (1.5415), 13CrMo4-5 (1.7335), 10CrMo9-10 (1.7380)

  • stainless steel in grades A2-50, A2-70, A4-50 and X12Cr13(1.4006), X20Cr13 (1.4021), X5CrNi18-10 (1.4301), X2CrNiMo17-12-2 (1.4404), X6CrNiTi18-10 (1.4541), X1NiCrMoCu25-20-5 (1.4539), X6CrNiMoTi17-12-2(1.4571) grades

  • heat resisting steels in grades X15CrNiSi20-12 (1.4828), X15CrNiSi25-21(1.4841), X22CrMoV12-1 (1.4923)

  • steels according ASTM standards in grades A193-B7, A193-B16, A320-L7, A194-2H

  • steels according to old Polish standards in grades 35, 45, 25HM, 21HMF, 26H2MF, 15HM, 10H2M, 40H, 40HM, 1H13, 2H13, 1H18N9T

  • other grades of materials and non ferrous metals according to individual customer needs

Anticorrosion coating

  • galvanizing – white or yellow

  • galvanizing alloy

  • hot dip galvanizing (HDG)

  • black oxidation

Marking of products

All products are markt grade of strength or code of materials grade and code of producent „AW”.

Technical dokumentation

  • certification of execution and product checking with metallurgical approval 3.1 or 3.2 for material

  • certification of receiving 3.1 for product according to PN-EN 10204:2006 with metallurgical approval 3.1 or 3.2 for material,

  • certification of receiving 3.2 for product according PN-EN 10204:2006 confirmed by TUV NORD with metallurgical approval 3.2 for material.


Products meet requirements directive of pressure PED 2014/68/UE and AD 2000-Merkblett W0/W2/W7/W10

Besides basic activities we are providing services in area of:

  • production of rolls to rolling mill to rolling threads

  • grinding of rollers, grinding of holes and external threads

  • conventional machine tool and CNC machines

  • milling on universal milling machines