Lock Washers - Page 3 | Raptor Supplies Singapore

Lock Washers

43 - 63 of 100 Items (1680 Products) Filter

Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, Vulcan-Hart,... Read More

APPROVED VENDOR -

Steel Heavy Spring Lock Washer

StyleModelFinishPrice (inc. GST)
AU37180.112.0001Plain SGD 45.44
BU37183.112.0001Zinc SGD 63.73
APPROVED VENDOR -

18-8 Stainless Steel External Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessPrice (inc. GST)
AU51460.011.0001#40.115"0.245"-0.012" SGD 4.40
BU51460.013.0001#60.141"0.305"-0.016" SGD 8.01
CU51460.016.0001#80.168"0.365"-0.018" SGD 2.48
DU51460.019.0001#100.195"0.395"-0.018" SGD 3.42
EU51460.050.00011/2"0.513"0.88"-0.037" SGD 7.26
FU51460.025.00011/4"0.256"0.494"1/4"0.023" SGD 13.36
GU51460.037.00013/8"0.384"0.67"-0.032" SGD 10.83
HU51460.031.00015/16"0.320"0.588"5/16"0.028" SGD 3.71
APPROVED VENDOR -

Steel Countersunk External Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessPrice (inc. GST)
AU37500.013.0001#60.140"0.289"-0.017" SGD 8.62
BU37500.016.0001#80.167"0.322"-0.017" SGD 6.55
CU37500.019.0001#100.195"0.354"-0.02" SGD 7.95
DU37500.021.0001#120.220"0.421"-0.02" SGD 16.99
EU37500.025.00011/4"0.255"0.454"1/4"0.02" SGD 9.08
FU37500.037.00013/8"0.383"0.765"3/8"0.028" SGD 17.94
GU37500.031.00015/16"0.318"0.599"5/16"0.023" SGD 16.10
APPROVED VENDOR -

316 Stainless Steel Standard Split Lock Washer

StyleModelColorFits Bolt SizesInside Dia.Outside Dia.SizeThicknessThickness TolerancePrice (inc. GST)
AU55450.100.0001-1"1.003"1.656"1"0.25"- SGD 32.19
BU55450.112.0001-1.125"1.129"1.847"1.125"0.281"- SGD 34.77
CU55450.125.0001-1.25"1.254"2.036"1.25"0.312"- SGD 73.64
D1NY78-7/8"0.894"1.459"-0.219"- SGD 55.63
E1NY79-1"1.024"1.656"-0.25"- SGD 44.28
F1NY80-1.125"1.153"1.847"-0.281"- SGD 4.95
GU55450.087.0001-7/8"0.878"1.459"-0.219"- SGD 17.71
HU55450.150.0001-1.5"1.504"2.419"-0.375"- SGD 129.36
IU55450.008.0001Plain#20.088"0.172"-0.02"- SGD 1.63
JU55450.021.0001Plain#120.220"0.377"-0.056"- SGD 21.20
KB55450.013.0001Silver#60.148"0.25"-0.031"0.031" SGD 21.70
LB55450.019.0001Silver#100.200"0.334"-0.047"0.047" SGD 43.27
APPROVED VENDOR -

316 Stainless Steel External Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AU55460.009.0001#30.102"0.23"0.013" SGD 40.35
BU55460.011.0001#40.115"0.245"0.012" SGD 15.10
CU55460.012.0001#50.129"0.27"0.014" SGD 89.12
DU55460.013.0001#60.141"0.305"0.016" SGD 109.33
EU55460.016.0001#80.168"0.365"0.018" SGD 13.45
FU55460.019.0001#100.195"0.395"0.018" SGD 20.12
APPROVED VENDOR -

316 Stainless Steel Internal Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. GST)
AU55462.011.0001#40.116"0.265"0.015"0.018 to 0.012" SGD 90.87
BU55462.013.0001#60.142"0.288"0.017"0.022 to 0.016" SGD 18.01
CU55462.016.0001#80.168"0.336"0.02"0.023 to 0.018" SGD 10.47
DU55462.019.0001#100.195"0.365"0.018"- SGD 22.36
EU55462.025.00011/4"0.256"0.46"0.023"- SGD 40.84
FU55462.037.00013/8"0.384"0.67"0.032"- SGD 8.70
GU55462.031.00015/16"0.320"0.594"0.028"- SGD 52.18
APPROVED VENDOR -

18-8 Stainless Steel Standard Split Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessThickness TolerancePrice (inc. GST)
AU51450.008.0001#20.088"0.172"-2"- SGD 1.98
B1NY83#20.094"0.172"-0.02"- SGD 24.04
C1NY84#20.094"0.172"-0.02"- SGD 5.64
D1NY86#30.107"0.195"-0.025"- SGD 7.38
EU51450.009.0001#30.101"0.195"-0.025"- SGD 2.89
FB51450.011.0001#40.120"0.209"-0.025"0.025" SGD 30.44
GU51450.012.0001#50.127"0.236"-0.031"- SGD 2.80
H1NY89#50.133"0.236"-0.031"- SGD 5.90
IB51450.013.0001#60.148"0.25"-0.031"0.031" SGD 25.68
J1NY91#60.148"0.25"-0.031"0.031" SGD 0.50
KB51450.016.0001#80.174"0.293"-0.04"0.04" SGD 55.17
LB51450.019.0001#100.200"0.334"-0.047"0.047" SGD 76.70
M1NY96#120.227"0.377"-0.056"- SGD 11.73
NU51450.100.00011"1.003"1.656"-0.25"- SGD 15.53
O1PA161"1.024"1.656"-0.25"- SGD 70.85
PU51450.150.00011.5"1.504"2.419"1.5"0.375"- SGD 60.52
QU51450.125.00011.25"1.254"2.036"1.25"0.312"- SGD 46.66
RU51450.112.00011.125"1.129"1.847"1.125"0.281"- SGD 13.36
S1PA129/16"0.574"0.965"-0.141"0.141"-
RFQ
TU51450.056.00019/16"0.564"0.965"-0.141"- SGD 12.71
APPROVED VENDOR -

Carbon Steel Standard Split Lock Washer

StyleModelColorFinishFits Bolt SizesInside Dia.Outside Dia.Rockwell HardnessThicknessThickness TolerancePrice (inc. GST)
AU37000.031.0001-Plain5/16"0.322"0.583"C38 to C460.078"- SGD 4.51
BM37000.035.0001-Furnace BlackM3.53.6mm6.7mmC44 to C510.8 mm+/-0.10mm SGD 4.97
CM37020.080.0001-ZincM88.1mm14.8mmC44 to C512mm+/-0.10mm SGD 3.92
DM37020.060.0001-ZincM66.1mm11.8mmC44 to C511.6mm+/-0.10mm SGD 2.84
EM37020.050.0001-ZincM55.1mm9.2mmC44 to C511.2mm+/-0.10mm SGD 2.37
FM37020.040.0001-ZincM44.1mm7.6mmC44 to C510.9mm+/-0.10mm SGD 1.99
GM37020.035.0001-ZincM3.53.6mm6.7mmC44 to C510.8 mm+/-0.10mm SGD 8.62
HM37020.030.0001-ZincM33.1mm6.2mmC44 to C510.8 mm+/-0.10mm SGD 2.37
IM37020.026.0001-ZincM2.62.7mm5.2mmC44 to C510.6 mm+/-0.10mm SGD 2.89
JM37020.020.0001-ZincM22.1mm4.4mmC44 to C510.5 mm+/-0.10mm SGD 4.02
BM37000.100.0001-Furnace BlackM1010.2mm18.1mmC44 to C512.2mm+/-0.15mm SGD 5.92
BM37000.080.0001-Furnace BlackM88.1mm14.8mmC44 to C512mm+/-0.10mm SGD 5.16
BM37000.060.0001-Furnace BlackM66.1mm11.8mmC44 to C511.6mm+/-0.10mm SGD 3.53
BM37000.050.0001-Furnace BlackM55.1mm9.2mmC44 to C511.2mm+/-0.10mm SGD 1.98
BM37000.040.0001-Furnace BlackM44.1mm7.6mmC44 to C510.9mm+/-0.10mm SGD 3.01
BM37000.030.0001-Furnace BlackM33.1mm6.2mmC44 to C510.8 mm+/-0.10mm SGD 4.87
KU37025.031.0001-Hot Dipped Galvanized5/16"0.322"0.583"C38 to C460.078"- SGD 7.89
LU37060.031.0001-Yellow Zinc5/16"0.322"0.583"C38 to C460.078"- SGD 4.69
MU37060.025.0001-Yellow Zinc1/4"0.260"0.487"C38 to C460.062"- SGD 3.39
NU37020.031.0001-Zinc5/16"0.322"0.583"C38 to C460.078"- SGD 4.63
OU37020.025.0001-Zinc1/4"0.260"0.487"C38 to C460.062"- SGD 2.92
PU37020.021.0001-Zinc#120.227"0.377"C38 to C460.056"- SGD 3.03
QU37020.019.0001-Zinc#100.200"0.334"C38 to C460.047"- SGD 2.29
RU37020.016.0001-Zinc#80.174"0.293"C38 to C460.04"- SGD 2.08
SU37020.013.0001-Zinc#60.148"0.25"C38 to C460.031"- SGD 2.01
APPROVED VENDOR -

Steel Internal Tooth, Type A Lock Washer

StyleModelFinishFits Bolt SizesInside Dia.Outside Dia.Rockwell HardnessSizeThicknessPrice (inc. GST)
AU37320.025.0001Plain1/4"0.256"0.5"-1/4"0.035" SGD 31.95
BU37320.031.0001Plain5/16"0.320"0.59"-5/16"0.04" SGD 71.11
CU37320.050.0001Plain1/2"0.512"0.88"-1/2"0.055" SGD 21.50
DU37320.062.0001Plain5/8"0.640"1.1"-5/8"0.059" SGD 38.42
EU37320.075.0001Plain3/4"0.768"1.24"-3/4"0.07" SGD 66.81
FU37480.050.0001Zinc1/2"0.512"0.867"-1/2"0.037" SGD 4.94
GU37480.062.0001Zinc5/8"0.640"1.045"-5/8"0.042" SGD 4.23
HU37480.075.0001Zinc3/4"0.769"1.22"-3/4"0.047" SGD 4.75
IU37480.037.0001Zinc3/8"0.384"0.67"C40 to C50-0.032" SGD 4.80
JU37480.043.0001Zinc7/16"0.448"0.74"C40 to C50-0.032" SGD 8.01
KU37480.056.0001Zinc9/16"0.576"0.957"C38 to C46-0.037" SGD 15.39
LU37480.087.0001Zinc7/8"0.894"1.364"C38 to C46-0.052" SGD 9.05
MU37480.100.0001Zinc1"1.019"1.59"C38 to C46-0.059" SGD 10.30
APPROVED VENDOR -

410 Stainless Steel Countersunk External Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessPrice (inc. GST)
AU51501.008.0001#2---- SGD 10.94
BU51501.011.0001#40.113"0.213"-0.015" SGD 43.49
CU51501.013.0001#60.140"0.289"-0.017" SGD 18.69
DU51501.016.0001#80.167"0.322"-0.017" SGD 19.45
EU51501.019.0001#100.195"0.354"-0.02" SGD 27.40
FU51501.025.00011/4"0.255"0.454"-0.02" SGD 36.99
GU51501.037.00013/8"0.383"0.765"3/8"0.028" SGD 188.85
HU51501.031.00015/16"0.318"0.599"5/16"0.023" SGD 172.94
APPROVED VENDOR -

18-8 Stainless Steel Internal Tooth, Type A Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.SizeThicknessPrice (inc. GST)
AU51462.011.0001#40.115"0.245"-0.012" SGD 8.20
BU51462.013.0001#60.141"0.275"-0.016" SGD 6.31
CU51462.016.0001#80.168"0.325"-0.018" SGD 19.74
DU51462.019.0001#100.195"0.365"-0.018" SGD 9.87
EU51462.050.00011/2"0.512"0.867"-0.037" SGD 18.49
FU51462.025.00011/4"0.256"0.46"1/4"0.023" SGD 16.49
GU51462.075.00013/4"0.769"1.22"-0.047" SGD 24.33
HU51462.037.00013/8"0.384"0.67"-0.032" SGD 39.97
IU51462.062.00015/8"0.640"1.045"5/8"0.042" SGD 29.06
JU51462.031.00015/16"0.320"0.594"5/16"0.028" SGD 27.69
KU51462.056.00019/16"0.576"0.957"-0.037" SGD 28.88
APPROVED VENDOR -

Carbon Steel Extra Duty Split Lock Washer

StyleModelColorFinishFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AU37170.013.0001BlackPlain#60.141"0.314"0.045" SGD 9.10
BU37171.021.0001SilverZinc#120.220"0.497"0.08" SGD 172.22
APPROVED VENDOR -

Steel Light Duty Split Lock Washer

StyleModelColorFinishFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness TolerancePrice (inc. GST)
ADLL113N0000P-PK10BlackPlain1.125"1.129"1.819"0.224"+0.020" SGD 30.08
BDLL004N0000Z-PK100SilverZinc#40.114"0.199"0.02"+0.006" SGD 3.80
CDLL006N0000Z-PK100SilverZinc#60.141"0.236"0.025"+0.006" SGD 3.41
DDLL008N0000Z-PK100SilverZinc#80.167"0.277"0.031"+0.006" SGD 4.45
APPROVED VENDOR -

18-8 Stainless Steel Hi Collar Split Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
A1NY121/4"0.260"0.363"0.078" SGD 17.25
BU51390.025.00011/4"0.252"0.363"0.078" SGD 10.35
C1NY143/8"0.385"0.55"0.125" SGD 55.72
DU51390.037.00013/8"0.377"0.55"0.125" SGD 20.96
E1NY135/16"0.322"0.457"0.093" SGD 30.61
FU51390.031.00015/16"0.314"0.457"0.093" SGD 17.37
APPROVED VENDOR -

Steel Standard Spring Lock Washer

StyleModelFinishPrice (inc. GST)
AU37025.125.0001Galvanized SGD 19.88
BU37000.125.0001Plain SGD 8.86
CU37020.125.0001Zinc SGD 8.13
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AU50450.037.00013/8"0.384"0.67"0.032" SGD 35.53
AU50450.031.00015/16"0.320"0.588"0.028" SGD 37.10
APPROVED VENDOR -

A2 Stainless Steel External Toothed, Open Perimeter Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AM51456.080.0001M88.4mm15mm0.8 mm SGD 7.53
BM51456.100.0001M1010.5mm18mm0.9mm SGD 8.43
CM51456.120.0001M1213mm20.5mm1 mm SGD 3.53
DM51456.140.0001M1415mm24mm1 mm SGD 5.25
APPROVED VENDOR -

A4 Stainless Steel Standard Spring Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AM55450.060.0001M66.1mm11.8mm1.6mm SGD 6.55
BM55450.080.0001M88.1mm14.8mm2mm SGD 6.28
CM55450.100.0001M1010.2mm18.1mm2.2mm SGD 10.97
DM55450.120.0001M1212.2mm21.1mm2.5mm SGD 7.52
APPROVED VENDOR -

Steel Extra Duty Spring Lock Washer

StyleModelFinishPrice (inc. GST)
AU37170.037.0001Plain SGD 24.28
BU37171.037.0001Zinc SGD 22.63
APPROVED VENDOR -

18-8 Stainless Steel Standard Spring Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AU51450.011.0001#40.114"0.209"0.025" SGD 3.97
BU51450.013.0001#60.141"0.25"0.031" SGD 2.75
CU51450.016.0001#80.167"0.293"0.04" SGD 2.41
DU51450.019.0001#100.193"0.334"0.047" SGD 3.23
EU51450.021.0001#120.220"0.377"0.056" SGD 5.25
FU51450.050.00011/2"0.502"0.869"0.125" SGD 10.34
GU51450.025.00011/4"0.252"0.487"0.062" SGD 5.18
HU51450.075.00013/4"0.753"1.265"0.188" SGD 7.55
IU51450.037.00013/8"0.377"0.68"0.094" SGD 12.38
JU51450.062.00015/8"0.628"1.073"0.156" SGD 14.41
KU51450.031.00015/16"0.314"0.583"0.078" SGD 8.25
LU51450.087.00017/8"0.878"1.459"0.219" SGD 12.61
MU51450.043.00017/16"0.440"0.77"0.109" SGD 11.44
APPROVED VENDOR -

316 Stainless Steel Standard Spring Lock Washer

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessPrice (inc. GST)
AU55450.011.0001#40.114"0.209"0.025" SGD 6.12
BU55450.013.0001#60.141"0.25"0.031" SGD 5.81
CU55450.016.0001#80.167"0.293"0.04" SGD 7.09
DU55450.019.0001#100.193"0.334"0.047" SGD 8.19
EU55450.050.00011/2"0.502"0.869"0.125" SGD 14.26
FU55450.025.00011/4"0.252"0.487"0.062" SGD 4.56
GU55450.075.00013/4"0.753"1.265"0.188" SGD 7.57
HU55450.037.00013/8"0.377"0.68"0.094" SGD 15.39
IU55450.062.00015/8"0.628"1.073"0.156" SGD 7.76
JU55450.031.00015/16"0.314"0.583"0.078" SGD 10.71
KU55450.043.00017/16"0.440"0.77"0.109" SGD 11.63

Lock Washers

Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, Vulcan-Hart, Midwest Acorn Nut, Fabory, Super-Strut, Metric Blue, Woodhead, Foreverbolt, Cooper B-Line, Disc-Lock and Armor Coat. These lock washers grab adjoining materials for preventing loosening due to vibration.

Features

  • Lock washers work in conjunction with threaded fasteners (like nuts) to prevent loosening.
  • Helical-shaped lock washers, spring lock washers & split lock washers get activated at the slightest pressure and offer a spring action.
  • Selected lock washers have serrations on their external grip surfaces (top & bottom, or just the top) for extra gripping power. This prevents loosening / shifting due to high vibration.
  • Some Belleville spring lock washers feature smaller outside diameters compared to standard spring lock washers for fitting under socket head cap screws.
  • Lock washers conform to standards like ASME (American Society of Mechanical Engineers), DIN (German Institute for Standardization), military specifications and NAS (National Aerospace Standards).
  • Most washers come in packs containing multiple pieces for easy replacement.

Disc-Lock Washer Bolts:

  • Disc-Lock washers use the wedge-locking system for preventing the loosening of bolts & maintaining joint integrity in high-stress, corrosive & vibration-sensitive applications.
  • Disc-Lock washers feature two pre-assembled washer-shaped pieces having inclined cams on one side and ridges on the other side. After installation, these two cam sides mate together and get placed between the nut & the joint material.
  • When the nut attempts to rotate loose upon vibration, the interlocking cams & the non-slip ridges of these Disc-Lock washers create a jamming effect & prevent loosening.
  • They have Delta-Protekt coating for high corrosion resistance.

Metric Blue Split Lock Washers:

  • These split lock washers have high collars for more holding surface.
  • They have a blue-coloured coating for easy metric identification.

Fabory Lock Washers:

  • These lock washers are made of spring steel, stainless spring steel, stainless steel, aluminium, bronze, phosphor bronze, silicon bronze or steel for use in diverse environments & operations.
  • They are available in helical spring, toothed, wedge, conical spring, contact, curved locking edge, curved spring & wave spring styles.

Frequently Asked Questions

How to install a lock washer?

  • Place the lock washer between the threaded fastener (like a nut) and the screw / bolt head.
  • Make sure that the lock washer press against the fastener & other adjacent surfaces and forms a tight connection. Press the fastener down to lock the grooves of a tooth lock washer with the grooves of the nut.
  • Use a wrench or ratchet to tighten the nut or threaded fastener.
  • Make sure that the teeth of the tooth lock washer are covered completely by the nut / fastener head, or that the split lock washer is slightly out of alignment to indicate tension on the threaded fastener. Users may loosen the nut / threaded fastener to adjust the washer if it is not operating correctly.

How to remove a lock washer?

  • After the operation is completed, the washer can be removed by simply removing the nut / threaded fastener that is holding the washer in place using a vise-grip or pipe wrench.
  • Use a flat screwdriver to pry the lock washer off. When removing a split washer, the screwdriver head should be placed inside the split or beneath the washer and pushed. When removing a washer having teeth, the screwdriver head should be placed under a tooth and pushed up, repeating the procedure with more teeth if required. For other lock washer types, the screwdriver head can be placed below the washer and pushed up. The washer may break during removal, depending on the amount of pressure being applied.
  • If the lock washer does not budge, use penetrating oil and repeat the previous step.
  • Some lock washers can be used multiple times easily. Other washers (split lock) can be used only 1 or 2 times. Users should not reuse a split lock washer or other damaged washers. Do not use old washers in high-stress joint applications.

What is the difference between lock washers and flat washers?

Flat washers are suitable for increasing the surface area and distributing the applied force when tightening the fastener. They can be used on the fastener's bolt & nut sides, or used as spacers where using a bolt may not be suitable.
Lock washers create tension during tightening to prevent the loosening of nuts. They are generally used on the fastener's nut side for applications involving vibrations.

Which type of lock washers has the highest vibration resistance?

Split Lock, Tooth Lock, Diamond-Coated Lock, Spring Lock and Wedge Lock type lock washers have vibration resistance in ascending or increasing order.

We are here to help!

Looking for a part not listed here?