Screw seal, self-centring
Steel zinc plated self-centring
WSH-SCRSEAL-SELFCENT-(A2K)-D20
Register now and access more than 125,000 products
- Galvanised steel, blue passivated (A2K)
- Steel washer with moulded-on rubber sealing lip; for sealing bolt heads (primarily used with metric hexagon bolts in accordance with German DIN standard) and flange connections.
- For high pressure, vacuum and broad temperature ranges.
- Optimum sealing effect due to precisely defined lip formation.
- No pressing out, even under extreme pressure conditions thanks to metal-metal contact.
- Minimal tightening torque
- No retightening of installed seal
- Replaces other previously used seals
- Can be used several times
- Quick, easy and reliable installation.
- Overhead installation possible
- No special machining of metal surface required.
- Temperature resistant from –35°C to +120°C
- Hardness of rubber seal: 65–75 Shore
Datasheets(X)
CAD data (available after login)
Professional installation:
It is recommended that a centring recess is provided for the sealing washer to prevent the seal being placed in an eccentric position.
 | |
Suitable for screw | M20 |
Internal diameter (d1) | 20 mm |
Outer diameter (d2) | 30 mm |
Thickness (h1) | 2 mm |
Material | Steel |
Shore A hardness | 70 +/- 5 |
Surface | Zinc plated |
Min./max. temperature resistance | -35 to 120 °C |
Through-hole according to DIN 69 f | 21 mm |
Through-hole according to DIN 69 m | 22 mm |
Last viewed
SH-6 hard hat With helmet shell that extends downwards for neck protection
Hex head screw with thread up to head DIN 933, steel 8.8U, hot-dip galvanised (hdg)
WÜPOFAST® zinc-plated blue chipboard screw
Roll-off unit, 1x For vehicle protective films, with protective covers
Needle scaler attachment For pneumatic chipping hammers
Slotted flat-head screws with shoulder DIN 923, steel 5.8, plain
Blade For removal knife
Release tool For connectors with two symmetrically arranged locking lugs
Leo S1P ESD safety shoe
Hexagonal bolt with thread up to the head ISO 4017, steel 8.8, plain