# JIS 210 Kgf/cm2 4-Bolt Square Flange — Hydraulic and pipe connection type identification

For JIS 210 Kgf/cm2 4-Bolt Square Flange, governing standard is JIS; region of origin is Japanese Connections; thread type (tapered or parallel) is flange bolts; seat or flare angle is flat face; seal method is JIS 210 Kgf/cm2 4-Bolt Square Flange incorporates a JIS 4-bolt square flange connection, recorded from its source on 2026-08-13.

- **Connection type:** JIS 210 Kgf/cm2 4-Bolt Square Flange _(verified: appears in the quote below)_
- **Governing standard:** JIS _(verified: appears in the quote below)_
- **Region of origin:** Japanese Connections _(our reading, not quoted from the source)_
- **Thread type (tapered or parallel):** flange bolts
- **Seat or flare angle:** flat face
- **Seal method:** JIS 210 Kgf/cm2 4-Bolt Square Flange incorporates a JIS 4-bolt square flange connection _(verified: appears in the quote below)_
- **Interchangeability notes:** comparable to SAE 4-bolt flange connections with one difference – the flange itself is different and the JIS bolt pattern is square _(verified: appears in the quote below)_

## What the source says

> JIS 210 Kgf/cm2 4-Bolt Square Flange incorporates a JIS 4-bolt square flange connection which is comparable to SAE 4-bolt flange connections with one difference – the flange itself is different and the JIS bolt pattern is square.

## Source

- https://brennaninc.com/connection-types/

Last verified: 2026-08-13. Review by: 2028-08-12.
Part of [Hydraulic and pipe connection type identification](https://referencesource.org/industrial-cross-reference-bearings-seals-fittings/).