DIN 604 Countersunk head bolt with projection (whisker)

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Correspondence table DIN 604

Specifications

Fastening groupHigh-strength fastening
StandardDIN 604
Strength class4.6
CoatingUncovered
Diameter, mm6, 8, 10, 12, 16, 20, 24
Length, mm20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 130, 140
HeadHidden
Packaging, pcs. 10, 25, 50, 100, 200, 500
Type of carvingPartially
Field of applicationAgriculture
Thread typeMetric
Threading step, mm1, 1.25, 1.5, 1.75, 2, 2.5, 3

 DIN 604 is a countersunk head bolt with a projection (whisker). The peculiarity of this bolt is the countersunk head, the absence of a slot and a whisker, which, when it crashes into a wooden surface, does not allow it to twist when tightened. A special whisker prevents the bolt from loosening under the influence of vibration. In cases where it is necessary to connect parts made of wood and metal, the head of the bolt with the whisker is covered with softer material.

Strength class DIN 604 


     The strength class of a DIN 604 bolt is the maximum applied force at which the bolt begins to fracture. DIN 604 bolts are available in strength classes 4.6 and 10.9. From strength class 8.8, the bolt is considered high-strength. High-strength DIN 604 should only be purchased from trusted suppliers. It is made of alloy steel and such bolts are used for critical projects where, in addition to high loads and static loads, the DIN 604 bolt is subjected to constant vibration.

DIN 604 fastening group


     DIN 604 bolts are made of high-strength steel and belong to the high-strength fastener group.

Materials for the manufacture of DIN 604 bolts


     DIN 604 bolts are made of steel of strength classes 10.9 and 4.6.  The high strength class of 10.9 allows the bolts to be used in highly loaded connections.

Areas of application for DIN 604 bolts


     DIN 604 bolts are mainly used in the furniture industry, although they are also sometimes used in construction and instrumentation. Due to the fact that the bolt has a flat head end that does not contain any elements capable of transmitting torque, the option of unscrewing it from the front side is completely excluded.

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