High Collar Split Lock Washer DIN7980

DEFAULT SPECIFICATIONS

Brand HJ Tech
Standard DIN7980
Material 65Mn/70#/50#  SS304/SS316/Brass
Finish Zinc/Black/HDG
Size M3-M42  

 

FEATURES

DIN 7980 High Collar Split Lock Washers are split helical spring type with flat ends but have a smaller outside diameter (OD) than regular split lock washers and increased thickness to compensate for their smaller OD. Intended for right-hand threaded bolted joints, they compress as the fastener is tightened, like regular split lock washers, but use with small OD heads like socket head cap screws and cheese head machine screws. Available in spring steel, zinc plated and plain finish (no rust protection), and stainless steel. Size refers to its nominal hole size and should be matched to the screw with which it will be used (select an M8 washer if you have an M8 screw, for instance). DIN 7980 High Collar Split Lock Washers have a smaller OD and are thicker than DIN 127 B.

High Collar Split Lock Washer DIN7980

Description:

 

Size d n h H Thread Weight
Metric min max baisc max min baisc max min min max M kg
Φ3 3.1 3.4 1 1.1 0.9 1 1.1 0.9 2 2.36 M3 0.015
Φ3.5 3.6 3.9 1 1.1 0.9 1 1.1 0.9 2 2.36 M3.5 0.114
Φ4 4.1 4.4 1.2 1.3 1.1 1.2 1.3 1.1 2.4 2.83 M4 0.195
Φ5 5.1 5.4 1.6 1.7 1.5 1.6 1.7 1.5 3.2 3.78 M5 0.37
Φ6 6.1 6.5 1.6 1.7 1.5 1.6 1.7 1.5 3.2 3.78 M6 0.425
Φ8 8.1 8.5 2 2.1 1.9 2 2.1 1.9 4 4.72 M8 1.06
Φ10 10.2 10.7 2.5 2.65 2.35 2.5 2.65 2.35 5 5.9 M10 1.96
Φ12 12.2 12.7 2.5 2.65 2.35 2.5 2.65 2.35 5 5.9 M12 2.28
Φ14 14.2 14.7 3 3.2 2.8 3 3.2 2.8 6 7.1 M14 3.8
Φ16 16.2 17 3.5 3.7 3.3 3.5 3.7 3.3 7 8.25 M16 5.94
Φ18 18.2 19 3.5 3.7 3.3 3.5 3.7 3.3 7 8.25 M18 6.6
Φ20 20.2 21.2 4.5 4.7 4.3 4.5 4.7 4.3 9 10.6 M20 12.3
Φ22 22.5 23.5 4.5 4.7 4.3 4.5 4.7 4.3 9 10.6 M22 13.6
Φ24 24.5 25.5 5 5.2 4.8 5 5.2 4.8 10 11.8 M24 18.1
Φ27 27.5 28.5 5 5.2 4.8 5 5.2 4.8 10 11.8 M27 20.6
Φ30 30.5 31.7 6 6.2 5.8 6 6.2 5.8 12 14.2 M30 32
Φ33 33.5 34.7 6 6.2 5.8 6 6.2 5.8 12 14.2 M33 35
Φ36 36.5 37.7 7 7.25 6.75 7 7.25 6.75 14 16.5 M36 52.5
Φ42 42.5 43.7 8 8.25 7.75 8 8.25 7.75 16 18.9 M42 80
Φ48 49 50.5 8 8.25 7.75 8 8.25 7.75 16 18.9 M48 90

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High Collar Split Lock Washer DIN7980

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