3x10 Solid steel countersunk-head rivets DIN 661 25 pcs.

Solid steel rivets DIN 661 — 3 × 10 mm, countersunk head, 25 pieces

Solid rivet with smooth shank and a factory-formed 75° countersunk head, uncoated steel. The joint is made by upsetting the free end of the shank. For DIN 661, length l = 10 mm is measured including the head, from its flat end face to the end of the shank. The card specifies DIN 661 and reference PN 82954.

Rivet parameters before installation

• Standard: DIN 661
• PN reference: PN 82954
• Rivet type: Solid
• Head type: Countersunk
• Shank diameter d1: 3 mm
• Diameter deviation d1: ±0,1 mm
• Overall length l: 10 mm (including head, nominal)
• Head diameter d2: 5,2 mm
• Head diameter tolerance d2: h14
• Minimum diameter d3: 2,87 mm
• Dimension e: max. 1,5 mm
• Head height k: approximately 1,4 mm
• Head angle: 75°
• Material: Steel
• Steel grade according to card: 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 specification permits QSt32-3 or QSt36-3 by agreement. No grade has been arbitrarily selected for this batch; confirmation is required. Rm min. 290 N/mm² and DIN 1654-2 are catalogue requirements, not a material certificate, batch test result or permissible joint load. Factory-formed head height k is approximate. No unspecified numerical length tolerance or hardness has been added.

Installation dimensions and formed closing head

Form A denotes a round closing head formed at the free end after riveting; form B denotes a countersunk closing head. The factory-formed head remains countersunk for both forms. Maximum thickness s is separately 6 mm for form A and 7,5 mm for form B; this is not a common 6–7,5 mm range.

• Installation hole d7: 3,1 mm
• Hole tolerance d7: H12
• Maximum thickness s — form A: 6 mm
• Maximum thickness s — form B: 7,5 mm
• Closing head diameter d8: 5,2 mm
• Closing head height k1 — form A: 1,8 mm
• Closing-head radius r1 — form A: approximately 2,8 mm
• Closing head height k2 — form B: approximately 1,3 mm
• Depth t1 — form B: 1,3 mm

Radius r1 and dimensions k1/k2 relate to the closing head formed after riveting, not the factory-formed rivet head. Selection and installation must account for part thickness, hole preparation and tools.

Scope of delivery and weight

Sales unit: a pack of 25 DIN 661 3 × 10 mm steel rivets. The price covers 25 pieces. The mass previously assigned to this offer: 0,15 kg; retained without new calculations. It is not a confirmed mass for a pack of 25 pieces from the current catalogue.

The graphics show the product family and illustrative packaging; they do not document the exact number of pieces or delivery carton. Dimensions and quantity are defined by the table. Our own diagram is a catalogue illustration before installation, not a production drawing.

Frequently asked questions

How many rivets does the price cover?

The price covers a pack of 25 pieces.

Does the length of 10 mm include the head?

Yes. For DIN 661, overall length is measured including the factory-formed countersunk head.

How do forms A and B differ?

Form A has a round closing head after riveting and s max. 6 mm; form B has a countersunk closing head and s max. 7,5 mm. The mounting hole is 3,1 mm H12. The factory-formed head is 75° countersunk for both forms.

Is the rivet zinc-plated?

No. This is an uncoated steel variant. The specific steel grade for the batch requires confirmation.