8x40 Solid steel rivets with round head DIN 660 5 pcs.

Solid steel rivets DIN 660 — 8 × 40 mm, round head, 5 pieces

Uncoated solid steel rivet with a factory-formed round head and a solid cylindrical shank. The joint is made by riveting the free end of the shank. The size 8 × 40 mm denotes a nominal shank diameter of 8 mm and a length of 40 mm measured under the head. The catalogue specifies DIN 660 and reference PN 82952.

Rivet dimensions and specifications before installation

• Standard: DIN 660
• PN reference: PN 82952
• Rivet type: Solid
• Head type: Round
• Shank diameter d1: 8 mm
• Diameter deviation d1: ±0,15 mm
• Shank length l: 40 mm (under the head, nominal)
• Head diameter d2: 14 mm
• Head diameter tolerance d2: h15
• Minimum diameter d3: 7,76 mm
• Dimension e: Max. 4 mm
• Head height k: 4,8 mm
• Head height tolerance k: js14
• Head radius r1: Approximately 7,5 mm
• Material: Steel St
• Steel grade: To be confirmed
• Coating: Uncoated
• Minimum strength Rm according to the data sheet: 290 N/mm²
• Material standard according to the data sheet: DIN 1654-2
• General requirements according to the data sheet: DIN 101

The steel data sheet specifies QSt32-3 or QSt36-3 by agreement. The specific grade has not been confirmed for this offer — it remains to be confirmed. The Rm value and material standard are catalogue requirements in the data sheet; they are not a test result for this batch, a material certificate or a permissible load for the finished joint.

Installation dimensions according to the technical data sheet

Form A denotes a round closing head after riveting; form B denotes a conical closing head after riveting. These are two ways of forming the free end of the rivet. They do not change the factory-formed round head. The s values apply separately to each form, rather than to a common thickness range.

• Installation hole d7: 8,4 mm
• Hole tolerance d7: H12
• Thickness of joined components s — form A: 27 mm
• Thickness of joined components s — form B: 31 mm
• Closing head diameter d8: 14 mm
• Closing head height k1 — form A: 4,8 mm
• Closing head height k2 — form B: Approximately 3,9 mm
• Depth t1 — form B: 3,7 mm

Selecting the rivet and riveting method requires consideration of component thickness, hole preparation and the tools used. Tolerance designations are given only where covered by the data sheet; no unconfirmed numerical length deviations have been added.

Scope of delivery and weight

Sales unit: Pack — 5 steel rivets DIN 660 8 × 40 mm. The price covers this quantity.

Existing weight assigned to the sales quantity of 5 pieces: 0,15 kg. The value has been retained without new calculations.

The graphics show the product family and illustrative packaging; they do not document the exact number of pieces or the actual delivery carton. Dimensions and quantity are specified in the specifications table. The in-house diagram shows the rivet before installation and is a catalogue illustration, not manufacturing documentation.

Frequently asked questions

How many rivets does the price cover?

The price covers 5 pieces.

Does the length of 40 mm include the head?

No. The nominal length of 40 mm is measured under the factory-formed round head.

What do forms A and B in the installation table mean?

Form A is a round closing head after riveting, and form B a conical closing head. For this size, thickness s — form A: 27 mm; form B: 31 mm. Installation hole: 8,4 mm.

Is the rivet zinc-plated?

No. This offer is for uncoated steel; it is not the zinc-plated version. The specific steel grade requires confirmation.