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Disc Spring Lock Washer, JIS B 1251, Class 1 (for Screws, for Heavy Loads)

Disc Spring Lock Washer, JIS B 1251, Class 1 (for Screws, for Heavy Loads)

This part has spring counter-force comparable to tightening axial force of bolts and prevents thread loosening caused by vibration and shock. It is possible to obtain a stable tightening axial force without causing fatigue to the tightening material due to the low pressure applied to the bearing surface.

(i)Caution

  • Some products are scheduled to be discontinued from October 2021. Depend on stock status, the end time will be changed. Please check the quotation and order screen for details.

Part Number

Configured Part Number is shown.

Part Number
WDSJIS1-ST3W-M6
WDSJIS1-ST3W-M12
WDSJIS1-ST-M6
WDSJIS1-ST-M8
WDSJIS1-ST-M10
WDSJIS1-ST-M12
WDSJIS1-ST-M14
WDSJIS1-ST-M16
WDSJIS1-ST-M18
WDSJIS1-ST-M20
WDSJIS1-ST-M22
WDSJIS1-STC-M16
WDSJIS1-STN-M6
WDSJIS1-STN-M8
WDSJIS1-STN-M10
WDSJIS1-STN-M12
WDSJIS1-STN-M14
WDSJIS1-STN-M16
Part NumberMinimum order quantityVolume DiscountDays to ShipRoHSSurface Treatment Inner Dia. d
(mm)
Outer Dia. D
(mm)
Nominal of Thread (M) Thickness t
(mm)
Surface Treatment (Detailed)
1 Piece(s) 14 Day(s) or more 10[Trivalent Chromate] Trivalent Chromate6.412.561.2[Trivalent Chromate] Trivalent White
1 Piece(s) 15 Day(s) or more 10[Trivalent Chromate] Trivalent Chromate1324122.5[Trivalent Chromate] Trivalent White
1 Piece(s) 15 Day(s) or more 10[Not Provided] Non treated6.412.561.2[Not Provided] Non treated
1 Piece(s) 14 Day(s) or more 10[Not Provided] Non treated8.41781.8[Not Provided] Non treated
1 Piece(s) 14 Day(s) or more 10[Not Provided] Non treated10.521102.2[Not Provided] Non treated
1 Piece(s) 15 Day(s) or more 10[Not Provided] Non treated1324122.5[Not Provided] Non treated
1 Piece(s) 14 Day(s) or more 10[Not Provided] Non treated1528143[Not Provided] Non treated
1 Piece(s) 15 Day(s) or more 10[Not Provided] Non treated1730163.5[Not Provided] Non treated
1 Piece(s) 15 Day(s) or more 10[Not Provided] Non treated1934184[Not Provided] Non treated
1 Piece(s) 15 Day(s) or more 10[Not Provided] Non treated2137204.5[Not Provided] Non treated
1 Piece(s) 15 Day(s) or more 10[Not Provided] Non treated2339225[Not Provided] Non treated
1 Piece(s) 14 Day(s) or more -[Chromate Plating] Chromate Plating1730163.5[Chromate Plating] Chromate Plating
1 Piece(s) 15 Day(s) or more 10Nickel Plating6.412.561.2[Nickel Plating] Nickel Plating
1 Piece(s) 15 Day(s) or more 10Nickel Plating8.41781.8[Nickel Plating] Nickel Plating
1 Piece(s) 15 Day(s) or more 10Nickel Plating10.521102.2[Nickel Plating] Nickel Plating
1 Piece(s) 15 Day(s) or more 10Nickel Plating1324122.5[Nickel Plating] Nickel Plating
1 Piece(s) 15 Day(s) or more 10Nickel Plating1528143[Nickel Plating] Nickel Plating
1 Piece(s) 15 Day(s) or more 10Nickel Plating1730163.5[Nickel Plating] Nickel Plating

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Basic Information

Material Steel Type Spring Washer Type (Application) Spring Washer
Sales Unit Low Quantity (can be purchased from one) Type Spring Washers Disc Spring Washers Material Steel S50C to S65C

Tech Support

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