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+48 58 55 40 410 export@marcopol.eu
+48 58 55 40 410 export@marcopol.eu
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Head types
Recesses (notches)
Thread end types
Material types
Protective coatings
Electrolytic zinc coatings
Chromate conversion coatings
Nickel coating
Brass plating
Phosphating
Oxidisation
List of standards
Head types
 hexagonal head – 6K
  hexagonal head with washer – 6P
  hexagon washer head with serration – 6Pz
 with washer – P
 with serrated washer – Pz
 head with ribbed washer – Pc
 flat head – S
 oval head – T
 mushroom head with square neck – ZG
 flat head with squere neck – ZS
 round – K
 pan head – W
 pan head, serrated – Wz
 cylindrical – C
 square – 4K
 hexagon washer head – 6P*
Recesses (notches)
 cross (Pozidriv) – PZ
 cross (Philips) – PH
 slotted – ZW
 kombi (Pozidriv) – KOMBI
 kombi (Phillips) – KOMBI
 hex socket – IM
 Torx – TX
 T-KOMBI torx – TK
 KOMBI (square) – 4K
 tri-wing – 3S
 torgu-set
 square – I4
 octagonal – I8
 clutch – IS
 cross slotted – ZK
 slotted one-way – ZJ
 spanner slotted one-way – ZZ
 KOMBI hex socket – IK

 

Thread end types
NameSymbol
Drawing examples
Screws with metric threadSheet metal screwsUNIX, for plastics
Cut
With pilot

 

     
Sharp      
With drill
  
With drill and wings
 

 

Material types
 carbon steel
 hardened product
 stainless steel
 acid-proof steel
 aluminium alloy
 aluminium alloy
 brass
 copper
 aluminum
 EPDM rubber
 polyethylene
 polypropylene
 polyamide
 PVC material (polyvinyl chloride)

 

Protective coatings
 zinc coating
 8µm, 12µm, 15µm zinc galvanic coating
 yellow passivation zinc coating
 white passivation zinc coating
 black passivation zinc coating
  Zintec zinc coating – white
 silver-coloured ceramic coating
 nickel coating
 brass-plated coating
 bluing
 phosphating
 hot-dip galvanisation
 Geomet
 Zintec zinc coating – black
 Statuary Bronze Plated

 

Electrolytic zinc coatings
Electrolytic zinc coatings are commonly used protective coatings. The anti-corrosive properties of these coatings depend to a great extent on their thickness. The standard thickness of zinc coating we use during the production is 5pm. We also offer other thicknesses per Client’s request.
When choosing the thickness of the coating, you must take into account additional damaging factors, like: condensation of water vapour, the presence of damaging gases and vapours, the presence of electrolyte solutions, dust and sand.
The physical, chemical and mechanical properties of zinc coatings have an influence on products’
performance characteristics. These properties limit the use of coatings in the food industry and for
products requiring high hardness of the top coat. In such cases, zinc coatings are replaced with other,
adapted to specific working conditions.
In some cases, specially designed zinc coating technology allows for achieving protective and decorative effects that are especially recommended when high durability of the coating is not required.

 

Chromate conversion coatings
In order to increase corrosion protection, zinc coatings are conversion chromated (passivated). Conversion chromating also allows for achieving protective and decorative effects that are especially in cases where high abrasion durability of the coating is not required. For our products, we use a white, yellow and black coating.
Considering the colour of the obtained chromate coatings, it has to be stated that golden-yellow coatings exhibit significantly higher corrosion resistance than clear, colourless coatings.
Chromate coatings have relatively low abrasion resistance. This is especially true for thicker, black coatings. After drying, the abrasion resistance increases. Least susceptible to abrasion are colourless and white coatings.

 

Nickel coating
Electrolytic nickel coatings are used in engineering for decorative and protective purposes and as technical coatings. For our products, we use decorative and protective coatings which provide optimal protection against corrosion and high aesthetic qualities.
Nickel coatings are used for fasteners are characterised by high resistance to atmospheric corrosion. We offer two types of coatings: – matte for components like euro screws (screws for furniture fittings), – glossy for components like hinges, furniture joints.

Brass plating
Brasses are copper and zinc alloys. The properties of electrolytic brass-plated coatings vary, depending on the content of the main alloying element, which is zinc. The chemical composition of the coating has also a determining influence on its colour, which varies from red (high copper content) to different shades of gold-yellow. The standard type of brass-plated coatings is yellow.
They are characterised by high aesthetic qualities and protect against corrosion. The anti-corrosion properties of brass-plated coatings allow for use in slightly damaging environments. Years-long analysis of the properties and applications of brass-plated coatings have shown their high rated use in products like ERICSSON nuts.

Phosphating
Standard phosphate coatings on the fixing elements are mat of dark gray to black colour. Typical phosphate coatings on fasteners are matte, with colours ranging from dark grey to black. Phosphate coatings have anti-corrosion properties and additionally increase the adhesion of applied paint coatings. Phosphating is performed for drywall screws (coarse and fine thread, self-drilling).
The specific use of these products excludes the use of zinc coatings which are easily damaged by contact with gypsum. Phosphate coatings not only protect products against corrosion but also reduce friction coefficient and make installation easier.

Oxidisation
Bluing belongs to the group of conversion oxide coatings on steel. These coatings are made of iron oxides. Both the coating structure and its anti-corrosive properties vary, depending on its thickness. The optimal thickness is 0.6 – 0.8 pm. Blued coating optimally combines corrosion resistance in low corrosive conditions with mechanical resistance to, for example, abrasion.
Using them with additional grease protection significantly improves the corrosion resistance of coating and can even improve its durability. Bluing is used for products subject to heat and thermo-chemical treatment. In contrast to galvanisation, it does not reduce mechanical parameters of the top layer. This is particularly important for products with higher mechanical properties.

List of standards
DINPNISOGOSTNr Marcopol
  ISO: ~7380 013.01
  ISO: ~7380 013.01a
  ISO: ~7380 013.02
  ISO: ~7380 013.02a
  ISO: 15979 024.01
  ISO: 15977 024.02
  ISO: 15980 024.04
  ISO: 15978 024.05
  ISO: 15976 024.06
  ISO: 15973 024.07
 PN: 82501  032.01
 PN: 82501  032.02
 PN-EN 10230-1  061.01
 PN-EN: 13964  051.51 – 051.58
 PN-EN 14545  062.01 – 062.04
 PN-EN 912  062.28 – 062.29
DIN: 125PN: 82005ISO: 7089,  
ISO: 7091GOST: 11379-68014.01  
DIN: 127PN: 82008 GOST: 11379-68014.04
DIN: ~315PN: 82439 GOST: 3032-76015.10
DIN: ~316PN: 82436  011.15
DIN: 338PN: 59601  067.01
DIN: 338PN: 59601  067.02
DIN: 338PN: 59601  067.03
DIN: 340PN: 59601  067.04
DIN: 340PN: 59601  067.05
DIN: 436PN: 82010  014.11
DIN: 439PN: 82153ISO: 4035 015.03
DIN: 440PN: 82019ISO: 7094 014.02
DIN: 551   012.05
DIN: 553   012.06
DIN: 557   015.31
DIN: 562   015.30
DIN: 571PN: 82501  032.03
DIN: 580PN: 82472ISO: 3266 063.13
DIN: 582   063.14
DIN: 603PN: 82406ISO: 8677 011.08
DIN: 603PN: 82406ISO: 8677 011.09
DIN: 605PN: 82402  011.10
DIN: 605PN: 82402  011.11
DIN: ~689 ISO: ~1677-2 063.26
DIN: 741 EN 13411 063.15
DIN: ~766   063.05
DIN: 911 ISO: 2936 049.09
DIN: 912PN: 82302ISO: 4762GOST: 11738-84011.06
DIN: 912PN: 82302ISO: 4762GOST: 11738-84011.07
DIN: 913PN: 82314ISO: 4026 012.01
DIN: 914PN: 82315ISO: 4027 012.02
DIN: 915PN: 82316ISO: 4028 012.03
DIN: 916   012.04
DIN: 928   015.20
DIN: 929PN: 82169  015.21
DIN: 931PN: 82101ISO: 4014GOST: 7798-70011.02
DIN: 933PN: 82105ISO: 4017GOST: 7798-70011.01
DIN: 934PN: 82144ISO: 4032 015.01
DIN: 960PN: 82101ISO: 8765 011.13
DIN: 961PN: 82105ISO: 8676 011.12
DIN: 965PN: 82208ISO: 7046 013.06
DIN: 965PN: 82208ISO: 7046 013.07
DIN: 966PN: 82212ISO: 7047 013.12
DIN: 966PN: 82212ISO: 7047 013.13
DIN: 967   013.03 – 013.05
DIN: ~968   023.07
DIN: 968   023.05
DIN: 975   053.52
DIN: 976   038.01
DIN: 976-1   053.52
DIN: 985PN: 82175ISO: 7040 015.04
DIN: 1480   063.08-063.09
DIN: 1480   063.12
DIN: 1480   063.28
DIN: 1587PN: 82181  015.09
DIN: 3050   063.02
DIN: 3052   063.01
DIN: 3053   063.02
DIN: 3055   063.01
DIN: 3060   063.01 – 063.02
DIN: 3066   063.01
DIN: 3127   049.04
DIN: 3128   049.01
DIN: 3128   049.02
DIN: 5299C   063.23
DIN: 5299D   063.24
DIN: ~5685A   063.05
DIN: 5685A   063.06
DIN: 5685C   063.07
DIN: 6334PN: 82157  015.02
DIN: 6379PN-M-82137  038.02
DIN: 6797JPN: 82023  014.05
DIN: 6798APN: 82024  014.06
DIN: 6798JPN: 82023  014.05
DIN: 6798VPN: 82025  014.07
DIN: 6899PN: 80247EN 13411 063.25
DIN: 6914PN-EN: 14399-4  011.33
DIN:6915PN-EN: 14399-4  015.33
DIN: 6916PN-EN: 14399-6  014.33
DIN: ~6921~PN-EN 1665   
~PN-EN 1662    
~PN: 82247  011.03 
DIN: ~6921~PN-EN 1665                    ~PN-EN 1662   
~PN: 82247  011.04 
DIN: ~6921~PN-EN 1665                    ~PN-EN 1662   
~PN: 82247  011.05 
DIN: ~6923 ISO: ~1661 015.06
DIN: 6923PN: 82168   
PN-EN: 1661  015.05 
DIN: 6928 ISO: 7053 023.02
DIN: ~6928 ISO: ~7053 023.04
DIN: 7426   049.03
DIN: 7500   021.02 – 021.05
DIN: 7500   021.09
DIN: 7500 CE   021.08
DIN: 7500 DE   021.01
DIN: 7500 ME   021.06
DIN: 7500 NE   021.07
DIN: 7504K ISO: 15480 023.03
DIN: 7504N ISO: 15481 023.12
DIN: 7504P ISO: 15482 023.09
DIN: 7513   022.02
DIN: 7513   022.03
DIN: 7513 A   022.01
DIN: 7516   022.04
DIN: 7516   022.05
DIN: 7516 AE   022.08
DIN: 7516 AE   022.09
DIN: 7516 DE   022.06
DIN: 7516 EE   022.07
DIN: ~7540 ISO: ~1677-2 063.26
DIN: 7965   015.14
DIN: 7976PN: 83101ISO: 1479 023.01
DIN: ~7981PN: ~83116ISO: ~7049 023.13
DIN: 7981PN: 83116ISO: 7049 023.11
DIN: 7982PN: 83114ISO: 7050 023.08
DIN: 7983PN: 83115ISO: 7051 023.10
DIN: 7985PN: 82202ISO: 7045 013.14
DIN: 7985PN: 82202ISO: 7045 013.15
DIN: 7985PN: 82202ISO: 7045 013.18
DIN: ~7991 ISO: ~10642 013.10
DIN: ~7991 ISO: ~10642 013.11
DIN: 7991 ISO: 10642 013.08
DIN: 7991 ISO: 10642 013.09
DIN: 9021PN: 82030ISO: 7093 014.03
DIN: 68163   061.02
DIN: 82101PN: 84703  063.22
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