DIN 7991Countersunk head bolt

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DIN 7991 10,9 Countersunk head bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 10,9 Countersunk head bolt and hexagon socket

Stal png10.9 pngUncovered png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class10.9
CoatingUncovered
Diameter, mm2, 2.5, 3, 4, 5..
Length, mm6, 8, 10, 12, 14..
HeadHidden
Packaging, pcs.500, 200, 1000..
Type of carvingFull, Partially
SlotHexagonal..
Thread typeMetric
Threading step, mm0.4, 0.45, 0.5..
Turnkey size, mm1.3, 1.5, 2, 2.5..
Thread length70
AnalogISO 10642
OEM numbers236303 Claas, 216308..
DIN 7991 10,9 zinc plated black countersunk head Bolt under torx - Інтернет-магазин Dinmark

DIN 7991 10,9 zinc plated black countersunk head Bolt under torx

10.9 pngFlake black zink png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
Strength class10.9
CoatingFlake..
Diameter, mm6, 8, 10
Length, mm12, 16, 20, 25..
HeadHidden
Type of carvingPartially
SlotStar-shaped..
Thread typeMetric
Threading step, mm1, 1.25, 1.5
Turnkey size, mm30, 40, 50
AnalogISO 10642
DIN 7991 8,8 zinc countersunk head Bolt under torx - Інтернет-магазин Dinmark

DIN 7991 8,8 zinc countersunk head Bolt under torx

8.8 pngZinc png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
Strength class8.8
CoatingZinc
Diameter, mm4, 5, 6, 8
Length, mm8, 10, 12, 16, 20..
HeadHidden
Packaging, pcs.500
Type of carvingPartially
SlotStar-shaped..
Thread typeMetric
Threading step, mm0.7, 0.8..
Turnkey size, mm20, 25, 30, 40
AnalogISO 10642
DIN 7991 10,9 zinc countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 10,9 zinc countersunk head Bolt and hexagon socket

Stal png10.9 pngZinc png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class10.9
CoatingZinc
Diameter, mm3, 4, 5, 6, 8, 10..
Length, mm5, 6, 8, 10, 12..
HeadHidden
Packaging, pcs.500, 200, 1000..
Type of carvingFull, Partially
SlotHexagonal..
Thread typeMetric
Threading step, mm0.5, 0.7, 0.8, 1..
Turnkey size, mm2, 2.5, 3, 4, 5..
AnalogISO 10642
OEM numbers236303 Claas, 216308..
DIN 7991 A2 countersunk head Bolt under torx - Інтернет-магазин Dinmark

DIN 7991 A2 countersunk head Bolt under torx

Stainless steel A2 png
Assortment
Delivery by Post across Ukraine svg
Fastening groupStainless steel..
StandardDIN 7991
MaterialStainless steel..
Diameter, mm2.5, 3, 4, 5, 6..
Length, mm6, 8, 10, 12, 14..
HeadHidden
Packaging, pcs.500, 200, 1000..
Type of carvingPartially
SlotStar-shaped..
Thread typeMetric
Threading step, mm0.35, 0.45, 0.7..
Turnkey size, mm10, 20, 25, 30..
AnalogISO 10642
DIN 7991 A2 countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 A2 countersunk head Bolt and hexagon socket

Stainless steel A2 png
Assortment
Delivery by Post across Ukraine svg
Fastening groupStainless steel..
StandardDIN 7991
MaterialStainless steel..
Diameter, mm2, 2.5, 3, 4, 5..
Length, mm3, 4, 5, 6, 8, 10..
HeadHidden
Packaging, pcs.500, 200, 1000..
Type of carvingFull, Partially
SlotHexagonal..
Field of applicationMilitary industry..
Thread typeMetric
Threading step, mm0.4, 0.45, 0.5..
Turnkey size, mm1.5, 2, 2.5, 3..
AnalogISO 10642
DIN 7991 A4 countersunk head Bolt under torx - Інтернет-магазин Dinmark

DIN 7991 A4 countersunk head Bolt under torx

Stainless steel A4 png
Assortment
Delivery by Post across Ukraine svg
Fastening groupStainless steel..
StandardDIN 7991
MaterialStainless steel..
Diameter, mm4, 5, 6, 8, 10..
Length, mm10, 12, 16, 20..
HeadHidden
Packaging, pcs.500, 200, 100
Type of carvingPartially
SlotStar-shaped..
Thread typeMetric
Threading step, mm0.7, 0.8, 1, 1.25..
Turnkey size, mm20, 25, 30, 40..
AnalogISO 10642
DIN 7991 A4  countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 A4 countersunk head Bolt and hexagon socket

Stainless steel A4 png
Assortment
Delivery by Post across Ukraine svg
Fastening groupStainless steel..
StandardDIN 7991
MaterialStainless steel..
Diameter, mm2, 2.5, 3, 4, 5..
Length, mm3, 4, 5, 6, 8, 10..
HeadHidden
Packaging, pcs.500, 200, 1000..
Type of carvingPartially
SlotHexagonal..
Thread typeMetric
Threading step, mm0.4, 0.45, 0.5..
Turnkey size, mm2, 2.5, 3, 4, 5..
AnalogISO 10642
DIN 7991 8,8 zinc countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 8,8 zinc countersunk head Bolt and hexagon socket

Stal png8.8 pngZinc png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class8.8
CoatingZinc
Diameter, mm3, 4, 5, 6, 8, 10..
Length, mm5, 6, 8, 10, 12..
HeadHidden
Packaging, pcs.500, 200, 100, 25..
Type of carvingFull, Partially
SlotHexagonal..
Thread typeMetric
Threading step, mm0.5, 0.7, 0.8, 1..
Turnkey size, mm2, 2.5, 3, 4, 5..
AnalogISO 10642
OEM numbers236303 Claas, 216308..
DIN 7991 8,8 Countersunk head bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 8,8 Countersunk head bolt and hexagon socket

Stal png8.8 pngUncovered png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class8.8
CoatingUncovered
Diameter, mm3, 4, 5, 6, 8, 10..
Length, mm6, 8, 10, 12, 14..
HeadHidden
Packaging, pcs.500, 200, 100, 25..
Type of carvingFull
SlotHexagonal..
Thread typeMetric
Threading step, mm0.5, 0.7, 0.8, 1..
Turnkey size, mm2, 2.5, 3, 4, 5..
AnalogISO 10642
OEM numbers236303 Claas, 216308..
DIN 7991 10,9 zinc yellow countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 10,9 zinc yellow countersunk head Bolt and hexagon socket

Stal png8.8 pngYellow zink png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class8.8
CoatingYellow zink
Diameter, mm4, 5, 6, 8, 10..
Length, mm10, 12, 16, 20..
HeadHidden
Type of carvingFull
SlotHexagonal..
Thread typeMetric
Threading step, mm0.7, 0.8, 1, 1.25..
Turnkey size, mm2.5, 3, 4, 5, 6..
AnalogISO 10642
DIN 7991 10,9 zinc plated countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 10,9 zinc plated countersunk head Bolt and hexagon socket

Stal png10.9 pngFlake zink png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class10.9
CoatingFlake zink
Diameter, mm5, 6, 8, 10, 12..
Length, mm10, 12, 16, 20..
HeadHidden
Packaging, pcs.500, 200, 100, 25..
Type of carvingPartially
SlotHexagonal..
Thread typeMetric
Threading step, mm0.8, 1, 1.25, 1.5..
Turnkey size, mm3, 4, 5, 6, 8, 10..
AnalogISO 10642
DIN 7991 10,9 zinc plated black countersunk head Bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 10,9 zinc plated black countersunk head Bolt and hexagon socket

Stal png10.9 pngFlake black zink png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class10.9
CoatingFlake..
Diameter, mm5, 6
Length, mm8, 12, 16, 20, 25..
HeadHidden
Packaging, pcs.500, 200
Type of carvingFull
SlotHexagonal..
Thread typeMetric
Threading step, mm0.8, 1
Turnkey size, mm3, 4
AnalogISO 10642
DIN 7991 12,9 Countersunk head bolt and hexagon socket - Інтернет-магазин Dinmark

DIN 7991 12,9 Countersunk head bolt and hexagon socket

Stal png12.9 pngUncovered png
Assortment
Delivery by Post across Ukraine svg
Fastening groupHigh-strength..
StandardDIN 7991
MaterialStal
Strength class12.9
CoatingUncovered
Diameter, mm4, 5, 6, 8, 10
Length, mm10, 16, 20, 25..
HeadHidden
Packaging, pcs.500, 200
Type of carvingFull
SlotHexagonal..
Thread typeMetric
Threading step, mm0.7, 0.8, 1, 1.25..
Turnkey size, mm2.5, 3, 4, 5, 6
AnalogISO 10642
OEM numbers216308 Claas, 211308..

Correspondence table DIN 7991

Overview
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Specifications

Fastening groupHigh-strength fastening
StandardDIN 7991
MaterialStal
Strength class10.9
CoatingUncovered
Diameter, mm2, 2.5, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24
Length, mm3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240
HeadHidden
Packaging, pcs. 1, 10, 25, 50, 100, 200, 500, 1000
Type of carvingFull, Partially
SlotHexagonal (INBUS)
Thread typeMetric
Threading step, mm0.35, 0.4, 0.45, 0.5, 0.7, 0.8, 1, 1.25, 1.5, 1.75, 2, 2.5, 3
Turnkey size, mm1.3, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 14, 17, 18, 20, 25, 30, 40, 50, 55
Thread length70
AnalogISO 10642
OEM numbers236303 Claas, 216308 Claas, 211308 Claas, 213699 Claas, 237069 Claas, 211287 Claas, 237062 Claas, 237577 Claas, 212118 Claas, 213697 Claas, 242523 Claas, 237070 Claas, 242798 Claas, 242521 Claas, 237829 Claas, 237067 Claas, 233945 Claas, 215147 Claas, 214027 Claas, 215146 Claas, 237768 Claas, 217000 Claas, 3016124 Lemken, 214351 Claas, 237068 Claas, 214002 Claas, 216185 Claas, 211175 Claas, 237061 Claas, 237579 Claas
Field of applicationMilitary industry, Construction

 A din 7991 screw is a fastener that has a countersunk cone-shaped head with a slot for an internal hexagon or Torx and a rod with a fully metric thread. With this design, the bolt head is fully included in the plane in which it is fixed, and the slot allows for maximum tightening force without the risk of slot breakage.

Strength class DIN 7991

      The strength class is the maximum applied force at which the bolt begins to fracture. DIN 7991 bolts are manufactured in various sizes from high-strength structural alloy steel with a strength class of 8.8 to 10.9, and are used for critical projects where, in addition to high loads and static loads, they are subject to high stress.

Fastening group DIN 7991

      Depending on the material of manufacture, the bolt is divided into different fastening groups:

  • High-strength fasteners
  • Stainless steel fasteners
  • Materials of manufacture

Materials of manufacture


      The bolt is available in the following materials:

  • Steel, which can optionally be coated with plain and plate black zinc
  • Stainless steel (A2, A4) does not need to be coated

Where high strength bolts DIN 7991 are used

      The din 7991 bolt has a slot that allows the use of pneumatic and power tools to install them quickly and easily. As a result, they are often used in conveyor assembly as flush-mounted fasteners for flush mounting. They are used to fasten parts in structures with high safety and aesthetic requirements. They are mainly used in the manufacturing, industrial and construction industries.

      In addition, the scope of application directly depends on the material of manufacture and coating of the product:

  • Galvanized steel offers good corrosion protection if the fastener is to be used in aggressive environments.
  • Stainless steel allows the fasteners to be used at high temperature extremes and in aggressive and humid environments.

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