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Home / Fastening / Bolts / Bolts with internal hexagon / DIN 7991 Countersunk head bolt and hexagon socket / DIN 7991 A4 countersunk head Bolt and hexagon socket

DIN 7991 A4 countersunk head Bolt and hexagon socket

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Technical characteristics

DIN 7991 A4 countersunk head Bolt and hexagon socket
DIN 7991 A4 countersunk head Bolt and hexagon socket креслення
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Overview

DIN 7991 A4 countersunk head bolt with internal hexagon is an excellent choice for connections where it is important that the bolt head is recessed into the surface. Thanks to its flat design, it provides not only a reliable connection, but also an aesthetic appearance of the finished product. This type of bolt is often used in the marine and chemical industries, as it is made of A4 stainless steel, which gives it high corrosion resistance. The internal hexagon drive provides ease of installation, even in hard-to-reach places, making this bolt ideal for use in a variety of structures and mechanisms.

Areas of application

DIN 7991 A4 countersunk head bolts with internal hexagon are widely used in industries where it is critical to ensure a smooth surface after installation. This applies to industries such as furniture production, mechanical engineering, the automotive industry and the manufacture of metal structures. Due to its design, the countersunk head of the bolt provides a tight fit to the surface, which eliminates the possibility of protrusions and snags. Made of A4 stainless steel, these bolts are ideal for applications in high humidity or corrosive environments. They are especially in demand in places with limited access, where safety, aesthetics and ergonomics of structures are important requirements.

Technical specifications

Technical characteristics of DIN 7991 A4 countersunk head hexagon socket bolt

Fastening group Stainless steel fasteners
Material Stainless steel A4
Diameter, mm 2 - 24
Length, mm 3 - 200
Head Hidden
Type of carving Full , Partially
Slot Hexagonal (INBUS)
Thread type Metric

Questions and answers

Is it profitable to buy

Purchasing DIN 7991 A4 countersunk head bolts with internal hexagon is an excellent choice for ensuring a reliable and aesthetic connection. These bolts have a unique design that allows for reduced protrusions, making them ideal for use in confined spaces or in design solutions. Made from A4 stainless steel, they are highly corrosion resistant, making them ideal for outdoor applications. Reliability and affordability are what make our bolts the perfect choice for your business.

Where it is used

The DIN 7991 A4 countersunk head bolt with internal hexagon is ideal for applications where it is important to maintain the aesthetic appearance of the surface. It is often used in structures where protruding parts must be avoided, such as furniture, electronics, and in the mechanical and construction industries. Due to its design, this bolt sinks into the material, providing a smooth surface without the risk of damage or snags.

Particularly useful in areas with limited access, it allows for convenient fastening of parts such as panels or housings. The DIN 7991 A4 bolt is designed to work under high loads, as well as in conditions where dynamic influences are possible. Made of A4 steel, it provides excellent corrosion resistance, making it an ideal choice for outdoor or wet conditions.

DIN 7991 A4 countersunk head Bolt and hexagon socket pdfDownload PDF
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DIN 7991 A4 countersunk head Bolt and hexagon socket
DIN 7991 A4 countersunk head Bolt and hexagon socket креслення
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DIN 7991 A4 countersunk head Bolt and hexagon socket pdf Download the drawing PDF

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Specifications
Fastening groupStainless steel fasteners
StandardDIN 7991ISO 10642
MaterialStainless steel A4
Diameter, mm22.5345681012162024
Length, mm345681012141618202225303540455055606570758090100110120130140150160170180190200
Packaging, pcs.11025501002002505001000
HeadHidden
Type of carvingFullPartially
SlotHexagonal (INBUS)
Thread typeMetric
Threading step, mm0.40.450.50.70.811.251.51.7522.53
Turnkey size, mm22.534568101217
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DIN 7991Countersunk head bolt
DIN 7991Countersunk head bolt
What is the difference between magnetic and non-magnetic stainless steel?
What is the difference between magnetic and non-magnetic stainless steel?
Stainless steel fastener.
Stainless steel fastener.
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