Page 568 - Wurth Total Catalogue

WEDGE LOCK WASHER

Type SF

Lock washer according to DIN 25201,
prevents loosening of screw connections
subject to lateral, vibrating loads.

Delta Protect (DPE)
Stainless steel A4 (1.4404)

Corrosion resistance:
Thread d d1 h Delta Protect (DPE) Pack Qty. 720 h base metal corrosion according to DIN
dia. d in mm in mm in mm Art. No. EN ISO 9227-NSS (DIN 50021-SS) – in
M 6 6.5 10.8 1.7 0401 780 006 comparison: 96 h yellow galvanized (A2C).
M 8 8.6 13.5 2.7 0401 780 008 100
M 10 10.7 16.6 2.7 0401 780 010 Function:
M 12 13 19.5 2.7 0401 780 012 Hi h o kin e e t due to the as ent o the
M 14 15.2 23 3.7 0401 780 014 ed e sur a es bet een the t o o k ashers.
M 16 17 25.4 3.7 0401 780 016 50 The screw connection is locked by pretension
M 18 19.5 29 3.7 0401 780 018 instead o b ri tion.
M 20 21.4 30.7 3.7 0401 780 020
M 24 25.3 39 4.7 0401 780 024 100 Advantages:
M 30 31.4 47 6.7 0401 780 030 50 • Maximum security when locking screw
M 33 34.4 48.5 6.7 0401 780 033 connections.
• No loosening during vibration and dynamic
Stainless Steel loads.
Thread d d1 h Pack Qty. • Simple installation and removal.
dia. d in mm in mm in mm A4 (1.4404)
Art. No. • No impairment by lubricant.
M 6 6.5 10.8 1.7 0404 701 006 • nsures o kin un tion ith hi h and o
M 8 8.6 13.5 2.7 0404 701 008 100 retension or es.
M 10 10.3 16 2.7 0404 701 010 • Same temperature range as the bolt.
M 12 13 19.5 2.7 0404 701 012 50 • ent e on sur a e nish.
M 14 15.2 23 3.7 0404 701 014 100 • Reusable.
M 16 17 25.4 3.7 0404 701 016 50
M 18 19.5 29 3.7 0404 701 018 100
M 20 21.4 30.7 3.7 0404 701 020 50

or the re ommended ti htenin tor ues, ease see the te hni a in ormation in a D S ata o ue.

Areas of Application:
ehi e manu a turin , me hani a en ineerin , manu a turers o neumati and e e tri too s, minin ,
a ri u tura ma hine manu a turin , manu a turers o mixin s stems, trans ort and onve in s stems.

AUS. pub. 12/16 ©

06 4691