
Fasteners - Reverse-taper grooved pins - One quarter- length progressive grooves on both sides
STANDARD published on 1.2.2026
Designation standards: ČSN EN ISO 13670
Classification mark: 022178
Catalog number: 522715
Publication date standards: 1.2.2026
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
This document specifies the characteristics of reverse-taper grooved pins with one quarter-length progressive grooves on both sides (with closed ends), in steel and stainless steel, and with nominal diameters 2 mm to 25 mm.
These grooved pins are designed to fulfil the main following functions:
- relative rotation of the assembled parts,
- locking of two (or more) parts
with an easy installation (due to its symmetrical shape) and a medium level of pull-out resistance (due to the elastic fit behaviour of the pin).
The general requirements (including functional principles for grooved pins and assembly) are specified in ISO 13669