What is the difference between flat washers and lock washers?

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

How to install a flat washer?

Place the flat washer between the threaded fastener (like a nut) and the screw / bolt head. Make sure that the washer presses against the fastener & other adjacent surfaces to form a tight connection. Press the fastener down to lock the grooves of a serrated washer with the grooves of the nut. Use a wrench or ratchet to tighten the nut / threaded fastener. Ensure that the teeth of a serrated washer are covered completely by the nut / fastener head, or that a split washer is slightly out of alignment. This indicates 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 flat washer?

Simply remove the nut / threaded fastener that is holding the washer in place using a vice-grip or pipe wrench.Use a flat screwdriver to pry a 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 flat 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 flat washer does not budge, use penetrating oil and repeat the previous step.Some flat 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 flat washer or other damaged washers. Do not use old washers in high-stress joint applications.

Flat Washers

FABORY -

Plain Washers

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Style	Model	Fastener Finish	Finish	Fits Bolt Sizes	Thickness	Washer Inside Dia.	Washer Material Grade	Washer O.D.	Price (ex. VAT)
A	L51532.080.0001	Plain	Plain	M8	4 mm	8.4 mm	A2	21 mm	-	RFQ
A	L55420.070.0001	Plain	Plain	M7	1.6 mm	7.4 mm	A4	14 mm	€708.88
A	L51532.100.0001	Plain	Plain	M10	4 mm	10.5 mm	A2	25 mm	€590.77
A	L51532.120.0001	Plain	Plain	M12	6 mm	13.0 mm	A2	30 mm	€395.12
A	L51532.060.0001	Plain	Plain	M6	3 mm	6.4 mm	A2	17 mm	€525.61
A	L38250.180.0001	Zinc Plated	Zinc Plated	M18	2.5 mm	19.0 mm	Low Carbon	30 mm	€1,348.66
A	L38430.270.0001	Zinc Plated	Zinc Plated	M27	1 mm	28.0 mm	Low Carbon	60 mm	€780.40
A	L38430.220.0001	Zinc Plated	Zinc Plated	M22	8 mm	23.0 mm	Low Carbon	50 mm	€1,217.14
A	L38430.050.0001	Zinc Plated	Zinc Plated	M5	2 mm	5.3 mm	Low Carbon	15 mm	€949.53
A	L38250.030.0001	Zinc Plated	Zinc Plated	M3	0.5 mm	3.2 mm	Low Carbon	6 mm	€1,559.39
A	L38430.160.0001	Zinc Plated	Zinc Plated	M16	6 mm	17.0 mm	Low Carbon	40 mm	€291.31
A	L38430.040.0001	Zinc Plated	Zinc Plated	M4	1.6 mm	4.3 mm	Low Carbon	12 mm	€1,175.60
A	L38250.020.0001	Zinc Plated	Zinc Plated	M2	0.3 mm	2.2 mm	Low Carbon	4 1/2 mm	€1,706.08
A	L38430.240.0001	Zinc Plated	Zinc Plated	M24	1 mm	25.0 mm	Low Carbon	50 mm	€898.94
A	L38430.060.0001	Zinc Plated	Zinc Plated	M6	3 mm	6.4 mm	Low Carbon	17 mm	€952.63
A	L38250.100.0001	Zinc Plated	Zinc Plated	M10	1.6 mm	10.5 mm	Low Carbon	18 mm	€953.37
A	L38250.040.0001	Zinc Plated	Zinc Plated	M4	0.5 mm	4.3 mm	Low Carbon	8 mm	€702.18
A	L38430.030.0001	Zinc Plated	Zinc Plated	M3	1 mm	3.2 mm	Low Carbon	9 mm	€718.94
A	L38250.200.0001	Zinc Plated	Zinc Plated	M20	3 mm	21.0 mm	Low Carbon	34 mm	€313.33
A	L38430.120.0001	Zinc Plated	Zinc Plated	M12	6 mm	13.0 mm	Low Carbon	30 mm	€778.72
A	L38250.140.0001	Zinc Plated	Zinc Plated	M14	2.5 mm	15.0 mm	Low Carbon	24 mm	€647.41
A	L38250.120.0001	Zinc Plated	Zinc Plated	M12	2 mm	13.0 mm	Low Carbon	20 mm	€754.12
A	L38430.080.0001	Zinc Plated	Zinc Plated	M8	4 mm	8.4 mm	Low Carbon	21 mm	€800.82
A	L38250.160.0001	Zinc Plated	Zinc Plated	M16	2.5 mm	17.0 mm	Low Carbon	28 mm	€345.87
A	L38250.060.0001	Zinc Plated	Zinc Plated	M6	1.6 mm	6.4 mm	Low Carbon	11 mm	€419.37

APPROVED VENDOR -

18-8 Stainless Steel Beveled Washer

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Price (ex. VAT)
A	Z9180-BEV-SS	#10	13/64"	1/2"	3/32"	€21.33
B	Z9189-BEV-SS	1"	1.031"	2"	5/16"	€24.11
C	Z9191-BEV-SS	1.25"	1-9/32"	2.25"	5/16"	€33.16
D	Z9190-BEV-SS	1.125"	1.156"	2.25"	5/16"	€38.03
E	Z9185-BEV-SS	1/2"	17/32"	1"	3/16"	€11.08
F	Z9181-BEV-SS	1/4"	9/32"	5/8"	1/8"	€18.63
G	Z9187-BEV-SS	3/4"	25/32"	1.5"	1/4"	€11.26
H	Z9183-BEV-SS	3/8"	13/32"	7/8"	1/8"	€20.18
I	Z9186-BEV-SS	5/8"	21/32"	1.25"	1/4"	€11.73
J	Z9182-BEV-SS	5/16"	11/32"	3/4"	1/8"	€20.96
K	Z9188-BEV-SS	7/8"	29/32"	1.75"	1/4"	€24.49
L	Z9184-BEV-SS	7/16"	15/32"	1"	5/32"	€21.95

COOPER B-LINE -

Flat Fender Washers

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Style	Model
A	1/2X2FFWZN	RFQ
A	3/8X11/4FFWZN	RFQ
A	3/8X11/2FFWZN	RFQ
A	1/4X11/4FFWZN	RFQ
A	3/8X1 1/4 FFW YZN	RFQ
A	1/4X11/2FFWZN	RFQ

GORLITZ -

Lock Washers

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Style	Model	Price (ex. VAT)
A	T01 125	€0.40	RFQ
A	T01A 125	€0.40	RFQ

GRUVLOK -

7013 Seal Rings

A

Style	Model	Price (ex. VAT)
A	0390081102	€99.78	RFQ
A	0390081116	€474.36	RFQ
A	0390081106	€135.08	RFQ
A	0390081100	€94.41	RFQ
A	0390081108	€163.11	RFQ
A	0390081104	€116.29	RFQ
A	0390081114	€325.46	RFQ
A	0390081110	€186.14	RFQ
A	0390081112	€234.89	RFQ

THOMAS & BETTS -

Reducer Washers

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Style	Model	Price (ex. VAT)
A	RG9711	€8.62	RFQ
B	BC79NP	€1.12	RFQ
B	RG9711UF	€11.94	RFQ
C	RF10731U	€7.76	RFQ
D	RB877U	€2.35	RFQ
B	RB873U	€1.90	RFQ
B	RB1333UNP	€1.67	RFQ
B	RB873NP	€1.00	RFQ
E	C72M	€1.06	RFQ
B	B87NPM	€0.69	RFQ
B	B71UF	€1.53	RFQ
B	B86NP	€0.43	RFQ
E	B75TB	€1.04	RFQ
B	RZ83NP	€2.96	RFQ
A	RG9751	€9.13	RFQ
A	RG9731	€8.62	RFQ
B	RC363U	€2.16	RFQ
B	BC72NP	€1.10	RFQ
B	RJ737NP	€16.31	RFQ

GORLITZ -

Flat Washers

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Style	Model	Price (ex. VAT)
A	T01A 124	€0.40	RFQ
A	T01 124	€0.40	RFQ

EARNEST -

Flat Washers

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Package Weight	Size	Price (ex. VAT)
A	510120G	1"	1-1/16"	2"	2	1"	€21.37
A	510124G	1.25"	1.375"	2.5"	2.92	1 1/4 Lbs.	€35.23
A	510122G	1.125"	1.187"	2.25"	2.43	1 1/8"	€16.91
A	510128G	1.375"	1.437"	2.75"	1.53	1 3/8"	€11.79

L9 -

Flat Washers

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Style	Model	Fits Bolt Sizes	Thickness	Thickness Tolerance	Washer Inside Dia.	Washer O.D.	Price (ex. VAT)
A	447026	1 1/2	0.203125"	+/-0.016"	1 41/64"	1"	€698.47	RFQ
A	448026	1 1/2	0.25"	+/-0.016"	1 9/16"	1"	€274.40	RFQ
A	448024	1 1/4	0.25"	+/-0.016"	1 5/16"	1"	€228.96	RFQ
A	447024	1 1/4	0.182"	+/-0.016"	1 25/64"	1"	€534.55	RFQ
A	448022	1 1/8	0.16"	+/-0.014"	1 3/16"	1"	€326.07	RFQ
A	447022	1 1/8	0.182"	+/-0.014"	1 17/64"	2 3/4"	€805.38	RFQ
A	447020	1"	0.162"	+/-0.014"	1 3/32"	2 1/2"	€292.22	RFQ
A	448020	1"	0.16"	+/-0.014"	1 1/16"	2 1/32"	€223.62	RFQ
A	447010	1/2"	0.140625"	+/-0.011"	17/32"	1 3/8"	€180.85	RFQ
A	448010	1/2"	0.109375"	+/-0.011"	17/32"	1 3/4"	€130.07	RFQ
A	447002	1/4"	0.078125"	+/-0.008"	17/64"	1"	€77.06	RFQ
A	448002	1/4"	0.063"	+/-0.008"	9/32"	5/8"	€66.37	RFQ
A	448016	3/4"	0.16"	+/-0.014"	13/16"	1 31/64"	€224.51	RFQ
A	447016	3/4"	0.162"	+/-0.014"	25/32"	2"	€370.62	RFQ
A	448006	3/8"	0.109375"	+/-0.011"	27/64"	13/16"	€105.13	RFQ
A	447006	3/8"	0.086"	+/-0.011"	13/32"	1"	€135.42	RFQ
A	447014	5/8"	0.162"	+/-0.014"	41/64"	1 3/4"	€354.58	RFQ
A	448014	5/8"	0.16"	+/-0.014"	21/32"	1"	€225.40	RFQ
A	447004	5/16"	0.086"	+/-0.008"	11/32"	7/8"	€105.13	RFQ
A	448004	5/16"	0.063"	+/-0.008"	11/32"	11/16"	€83.75	RFQ
A	447018	7/8"	0.162"	+/-0.014"	15/16"	2 1/4"	€392.00	RFQ
A	448018	7/8"	0.16"	+/-0.014"	15/16"	1 49/64"	€261.04	RFQ
A	448008	7/16"	0.109375"	+/-0.011"	15/32"	59/64"	€65.48	RFQ
A	447008	7/16"	0.109375"	+/-0.011"	15/32"	1 1/8"	€81.07	RFQ
A	448012	9/16"	0.109375"	+/-0.011"	19/32"	1 11/64"	€181.75	RFQ

FABORY -

Fender Washers

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Style	Model	Fastener Finish	Finish	Fits Bolt Sizes	Thickness	Thickness Tolerance	Washer Inside Dia.	Washer Material Grade	Washer O.D.	Price (ex. VAT)
A	B55530.050.0150	Plain	Plain	1/2"	0.065"	0.047" to 0.080"	17/32"	316	1 1/2"	€576.04
B	B55530.031.0087	Plain	Plain	5/16"	0.065"	0.047" to 0.080"	5/16"	316	7/8"	€707.22
C	B51530.018.0075	Plain	Plain	3/16"	0.065"	0.047" to 0.080"	3/16"	18-8	3/4"	€478.58
B	B51530.015.0087	Plain	Plain	5/32"	0.065"	0.047" to 0.080"	3/16"	18-8	7/8"	€923.36
B	B51530.012.0062	Plain	Plain	1/8"	0.065"	0.047" to 0.080"	5/32"	18-8	5/8"	€2,128.68
B	B38213.050.0300	Plain	Plain	1/2"	0.0625"	+0.08" /-0.047"	17/32"	Low Carbon	3"	€330.28
B	B38213.031.0300	Plain	Plain	5/16"	0.0625"	+0.08" /-0.047"	11/32"	Low Carbon	3"	€280.51
B	B38213.025.0250	Plain	Plain	1/4"	0.0625"	+0.08" /-0.047"	9/32"	Low Carbon	2 1/2"	€316.66
B	B38213.025.0125	Plain	Plain	1/4"	0.0625"	+0.08" /-0.047"	9/32"	Low Carbon	1 1/4"	€190.12
B	B38213.025.0100	Plain	Plain	1/4"	0.0625"	+0.08" /-0.047"	9/32"	Low Carbon	1"	€193.58
B	B38213.018.0125	Plain	Plain	3/16"	0.0625"	+0.08" /-0.047"	3/16"	Low Carbon	1 1/4"	€7,167.79
B	B38213.012.0062	Plain	Plain	1/8"	0.0625"	+0.08" /-0.047"	5/32"	Low Carbon	5/8"	€1,407.10
B	B55530.050.0250	Plain	Plain	1/2"	0.065"	0.047" to 0.080"	1/2"	316	2 1/2"	€875.12
A	B55530.031.0200	Plain	Plain	5/16"	0.065"	0.047" to 0.080"	11/32"	316	2"	€550.17
B	B55530.031.0162	Plain	Plain	5/16"	0.065"	0.047" to 0.080"	5/16"	316	1 5/8"	€1,263.45
A	B55530.031.0125	Plain	Plain	5/16"	0.065"	0.047" to 0.080"	11/32"	316	1 1/4"	€628.84
B	B55530.025.0250	Plain	Plain	1/4"	0.065"	0.047" to 0.080"	1/4"	316	2 1/2"	€687.23
B	B51530.025.0175	Plain	Plain	1/4"	0.065"	0.047" to 0.080"	9/32"	18-8	1 49/64"	€1,002.88
A	B55530.025.0200	Plain	Plain	1/4"	0.065"	0.047" to 0.080"	9/32"	316	2"	€803.70
A	B55530.025.0100	Plain	Plain	1/4"	0.065"	0.047" to 0.080"	9/32"	316	1"	€804.45
B	B55530.018.0150	Plain	Plain	3/16"	0.065"	0.047" to 0.080"	3/16"	316	1 1/2"	€1,027.09
A	B55530.018.0050	Plain	Plain	3/16"	0.065"	0.047" to 0.080"	3/16"	316	1/2"	€2,300.83
B	B55530.012.0062	Plain	Plain	1/8"	0.065"	0.047" to 0.080"	1/8"	316	5/8"	€2,912.58
B	B51530.050.0175	Plain	Plain	1/2"	0.065"	0.047" to 0.080"	1/2"	18-8	1 3/4"	€1,068.48
B	B51530.050.0125	Plain	Plain	1/2"	0.065"	0.047" to 0.080"	1/2"	18-8	1 1/4"	€589.41

APPROVED VENDOR -

18-8 Stainless Steel Fender Washer

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Package Weight	Size	Thickness	Thickness Tolerance	Type	Price (ex. VAT)
A	U51530.013.0001	#6	1/8"	5/8"	-	-	0.031"	-	Fender	€2.32
B	U51530.013.0002	#6	5/32"	9/16"	-	-	0.047"	-	Fender	€10.99
C	Z0448-188	#6	9/64"	5/8"	0.15 Lbs.	-	0.031"	+/-0.007	Standard	€6.75
D	Z0449-188	#6	5/32"	9/16"	0.18 Lbs.	-	0.047"	+/-0.007	Standard	€12.83
E	U51530.012.0075	#8	5/32"	3/4"	-	-	0.047"	-	Fender	€3.45
F	Z0450-188	#8	11/64"	3/4"	0.32 Lbs.	-	0.04"	+/-0.007	Standard	€6.94
G	Z0451-188	#8	3/16"	3/4"	0.33 Lbs.	-	0.05"	+/-0.007	Standard	€15.94
H	U51530.018.0125	#10	7/32"	1.25"	-	-	0.047"	-	Standard	€10.58
I	Z0452-188	#10	13/64"	1/2"	0.13 Lbs.	-	0.04"	+/-0.007	Standard	€4.75
J	Z0453-188	#10	13/64"	11/16"	0.26 Lbs.	-	0.04"	+/-0.007	Standard	€6.35
K	Z0455-188	#10	13/64"	3/4"	0.35 Lbs.	-	0.04"	+/-0.007	Standard	€8.09
L	Z0454-188	#10	13/64"	1"	0.60 Lbs.	-	0.04"	+/-0.007	Standard	€10.48
M	U51530.019.0002	#10	3/16"	11/16"	-	-	0.047"	-	Fender	€3.80
N	U51530.018.0100	#10	3/16"	1"	-	-	0.047"	-	Fender	€7.64
O	U51530.019.0001	#10	3/16"	1/2"	-	-	0.047"	-	Fender	€2.34
P	U51530.018.0075	#10	3/16"	3/4"	-	-	0.047"	-	Fender	€4.04
Q	Z0456-188	#10	7/32"	1.25"	0.90 Lbs.	-	0.05"	+/-0.007	Standard	€13.50
R	Z0472-188	1/2"	17/32"	1.5"	1.15 Lbs.	1/2"	0.062"	+/-0.010"	Standard	€8.95
S	U51530.050.0200	1/2"	17/32"	2"	-	-	0.063"	-	Standard	€16.57
T	Z0473-188	1/2"	17/32"	2"	2.15 Lbs.	1/2"	0.062"	+/-0.010"	Standard	€14.45
U	U51530.050.0150	1/2"	17/32"	1.5"	-	-	0.063"	-	Standard	€9.23
V	U51530.025.0200	1/4"	9/32"	2"	-	-	0.063"	-	Standard	€21.36
W	U51530.025.0001	1/4"	9/32"	1/2"	-	-	0.047"	-	Standard	€4.69
X	U51530.025.0087	1/4"	9/32"	7/8"	-	-	0.063"	-	Standard	€5.72
Y	U51530.025.0150	1/4"	9/32"	1.5"	-	-	0.063"	-	Standard	€14.17

APPROVED VENDOR -

Through Hardened Steel SAE Washer

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Package Weight	Size	Thickness	Thickness Tolerance	Price (ex. VAT)
A	514121G	1"	1-1/16"	2"	0.91	1"	0.134"	+.026/-.026	€9.57
A	514161G	1.5"	1.625"	3"	1.05	1.5"	0.165"	+.027/-.029	€6.66
A	514141G	1.25"	1.375"	2.5"	1.4	1.25"	0.165"	+.027/-.029	€12.42
A	514131G	1.125"	1.187"	2.25"	0.91	1.125"	0.134"	+.026/-.026	€11.37
A	514061G	1/2"	17/32"	1 1/16"	0.38	1/2"	0.095"	+.026/-.021	€4.43
A	514021G	1/4"	9/32"	5/8"	0.37	1/4"	0.065"	+.015/-.014	€5.02
A	514101G	3/4"	13/16"	1 15/32"	0.74	3/4"	0.134"	+.026/-.026	€8.05
A	514041G	3/8"	13/32"	13/16"	0.34	3/8"	0.065"	+.015/-.014	€4.56
A	514081G	5/8"	21/32"	1 5/16"	0.7	5/8"	0.095"	+.026/-.021	€8.08
A	514031G	5/16"	11/32"	11/16"	0.22	5/16"	0.065"	+.015/-.014	€3.18
A	514111G	7/8"	15/16"	1.75"	0.55	7/8"	0.134"	+.026/-.026	€5.34
A	514051G	7/16"	15/32"	59/64"	0.23	7/16"	0.065"	+.015/-.014	€2.73
A	514071G	9/16"	19/32"	1.187"	0.47	9/16"	0.095"	+.026/-.021	€5.83

APPROVED VENDOR -

18-8 Stainless Steel Jumbo Washer

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Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Price (ex. VAT)
A	Z9252SS	1.5"	1.625"	3"	1/4"	€44.63
B	Z9251SS	1.5"	1.625"	3"	1/8"	€44.27
C	Z9254SS	1.75"	1.875"	3.375"	1/4"	€47.88
D	Z9250SS	1.375"	1.5"	2.75"	1/4"	€34.07
E	Z9256SS	2"	2.125"	3.75"	1/4"	€58.36
F	Z9258SS	2.5"	2.625"	4.5"	5/16"	€72.93
G	Z9260SS	3"	3.125"	5.5"	5/16"	€107.92
H	Z9262SS	3.5"	3.625"	6.5"	5/16"	€155.95
I	Z9264SS	4"	4.125"	7.5"	5/16"	€194.36

GRAINGER -

Steel Flat Washer

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Y

Style	Model	Finish	Fits Bolt Sizes	Inside Dia.	Item	Outside Dia.	Package Weight	System of Measurement	Thickness	Price (ex. VAT)
A	B38100.062.0001	Plain	5/8"	11/16"	Flat Washer	1.75"	20.48 Lbs.	Inch	0.134"	€125.46
B	B38100.087.0001	Plain	7/8"	15/16"	Flat Washer	2.25"	22.00 Lbs.	Inch	0.165"	€118.84
C	B38100.075.0001	Plain	3/4"	13/16"	Flat Washer	2"	14.68 Lbs.	Inch	0.148"	€198.65
D	B38100.050.0001	Plain	1/2"	9/16"	Flat Washer	1.375"	21.34 Lbs.	Inch	0.109"	€118.57
E	B38100.100.0001	Plain	1"	1-1/16"	Flat Washer	2.5"	21.21 Lbs.	Inch	0.165"	€119.24
F	M38430.030.0001	Zinc-Plated	M3	3.20mm	Plain Washer	9mm	0.097 Lbs.	Metric	1 mm	€3.52
G	M38250.040.0001	Zinc-Plated	M4	4.30mm	Plain Washer	8mm	0.031 Lbs.	Metric	0.5 mm	€2.82
H	M38250.050.0001	Zinc-Plated	M5	5.30mm	Plain Washer	9mm	0.064 Lbs.	Metric	1 mm	€3.01
I	M38250.100.0001	Zinc-Plated	M10	10.50mm	Plain Washer	18mm	0.465 Lbs.	Metric	1.6mm	€2.87
J	M38250.120.0001	Zinc-Plated	M12	13.00mm	Plain Washer	20 mm	0.507 Lbs.	Metric	2mm	€3.97
K	M38250.180.0001	Zinc-Plated	M18	19.00mm	Plain Washer	30mm	1.832 Lbs.	Metric	2.5mm	€56.18
L	U38400.037.0002	Zinc-Plated	3/8"	13/32"	Flat Washer	1"	-	Inch	0.063"	€5.67
M	M38430.040.0001	Zinc-Plated	M4	4.30mm	Plain Washer	12 mm	0.243 Lbs.	Metric	1.6mm	€3.85
N	M38430.060.0001	Zinc-Plated	M6	6.40mm	Plain Washer	17mm	0.882 Lbs.	Metric	3mm	€4.87
O	M38430.080.0001	Zinc-Plated	M8	8.40mm	Plain Washer	21mm	1.764 Lbs.	Metric	4mm	€9.48
P	M38430.100.0001	Zinc-Plated	M10	10.50mm	Plain Washer	25 mm	2.426 Lbs.	Metric	4mm	€11.05
Q	M38430.120.0001	Zinc-Plated	M12	13.00mm	Plain Washer	30mm	5.292 Lbs.	Metric	6mm	€17.84
R	M38430.180.0001	Zinc-Plated	M18	19.00mm	Plain Washer	44mm	17.067 Lbs.	Metric	8mm	€231.51
S	M38430.050.0001	Zinc-Plated	M5	5.30mm	Plain Washer	15mm	0.485 Lbs.	Metric	2mm	€5.71
T	M38430.270.0001	Zinc-Plated	M27	28.00mm	Plain Washer	60mm	9.592 Lbs.	Metric	10mm	€99.13
U	M38430.300.0001	Zinc-Plated	M30	31.00mm	Plain Washer	68mm	11.246 Lbs.	Metric	10mm	€149.59
V	M38250.020.0001	Zinc-Plated	M2	2.20mm	Plain Washer	4.5"	0.007 Lbs.	Metric	0.3mm	€3.01
W	M38430.220.0001	Zinc-Plated	M22	23.00mm	Plain Washer	50mm	10.705 Lbs.	Metric	8mm	€146.93
X	M38250.200.0001	Zinc-Plated	M20	21.00mm	Plain Washer	34mm	2.911 Lbs.	Metric	3mm	€12.28
Y	M38250.140.0001	Zinc-Plated	M14	15.00mm	Plain Washer	24mm	1.103 Lbs.	Metric	2.5mm	€14.31

APPROVED VENDOR -

Case Hardened Steel Thick Washer

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Price (ex. VAT)
A	Z9085	#4	1/8"	5/16"	5/64"	+/-0.010"	€8.58
B	Z9086	#6	5/32"	3/8"	5/64"	+/-0.010"	€8.03
C	Z9087	#8	3/16"	7/16"	5/64"	+/-0.010"	€5.46
D	Z9094	#10	13/64"	1/2"	3/32"	+/-0.010"	€5.66
E	Z9103	1"	1.031"	2"	3/16"	+/-0.010"	€39.62
F	Z9105	1.25"	1-9/32"	2.5"	9/32"	+/-0.010"	€18.85
G	Z9104	1.125"	1.156"	2.25"	7/32"	+/-0.010"	€45.32
H	Z9099	1/2"	17/32"	1.125"	1/8"	+/-0.010"	€11.83
I	Z9095	1/4"	9/32"	5/8"	1/8"	+/-0.010"	€6.94
J	Z9101	3/4"	25/32"	1.625"	1/8"	+/-0.010"	€16.40
K	Z9097	3/8"	13/32"	7/8"	1/8"	+/-0.010"	€8.59
L	Z9100	5/8"	21/32"	1.375"	1/8"	+/-0.010"	€6.01
M	Z9096	5/16"	11/32"	3/4"	1/8"	+/-0.010"	€6.96
N	Z9102	7/8"	29/32"	1.75"	5/32"	+/-0.010"	€20.54
O	Z9098	7/16"	15/32"	1"	1/8"	+/-0.010"	€10.49
P	Z8803	M3	3.2mm	8mm	2mm	+0.4mm/-0.5mm	€16.13
Q	Z8804	M4	4.3mm	10mm	2mm	+0.4mm/-0.5mm	€17.26
R	Z8805	M5	5.3mm	11mm	2mm	+0.4mm/-0.5mm	€8.12
S	Z8806	M6	6.4mm	13mm	2.5mm	+0.4mm/-0.5mm	€7.39
T	Z8808	M8	8.4mm	16 mm	3mm	+0.4mm/-0.5mm	€7.97
U	Z8810	M10	10.5mm	19mm	3mm	+0.4mm/-0.5mm	€8.43
V	Z8812	M12	13mm	22mm	3mm	+0.4mm/-0.5mm	€8.82
W	Z8814	M14	15mm	25 mm	3mm	+0.4mm/-0.5mm	€13.04
X	Z8816	M16	17mm	28mm	3.5mm	+0.4mm/-0.5mm	€10.17
Y	Z8820	M20	21mm	35mm	3.5mm	+0.4mm/-0.5mm	€12.26

APPROVED VENDOR -

Flat Washer 18-8 Sst

A

B

C

D

E

F

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Type	Price (ex. VAT)
A	U51420.050.0001	1/2"	9/16"	1.375"	0.109"	USS	€10.42
B	U51420.025.0001	1/4"	5/16"	47/64"	0.065"	USS	€3.56
C	U51420.037.0001	3/8"	7/16"	1"	0.083"	USS	€7.96
D	U51420.031.0001	5/16"	3/8"	7/8"	0.083"	USS	€4.39
E	U51410.087.0001	7/8"	29/32"	1.75"	0.156"	Thick	€9.41
F	U51420.043.0001	7/16"	5"	11/4"	0.083"	USS	€9.92

APPROVED VENDOR -

Steel Thick Square Washer

A

B

C

D

E

Style	Model	Fits Bolt Sizes	Inside Dia.	Price (ex. VAT)
A	Z8954G	1/2"	9/16"	€10.89
B	Z8958G	3/4"	13/16"	€10.05
C	Z8952G	3/8"	7/16"	€5.63
D	Z8956G	5/8"	11/16"	€10.09
E	Z8960G	7/8"	15/16"	€10.50

APPROVED VENDOR -

A2 Stainless Steel (Comparable to 18-8 Stainless Steel) Fender Washer

A

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Thickness Tolerance	Price (ex. VAT)
A	M51530.060.0001	M6	6.4mm	18mm	1.6mm	+/-0.20mm	€13.07
A	M51530.200.0001	M20	22mm	60mm	4mm	+/-0.60mm	€9.77

SUPER-STRUT -

E147 Series Flat Washer

A

B

C

Style	Model	Color	Finish	Inside Dia.	Material	Outside Dia.	Thickness	Price (ex. VAT)
A	E147-1/4SS6	-	-	1/4"	Stainless Steel	-	-	-	RFQ
A	E147-1/2-SS	-	-	0.562"	Stainless Steel	1.375"	0.132"	-	RFQ
B	E147-1/4	-	Gold Galvanized	-	Steel	-	-	-	RFQ
A	E147-3/8SS	-	-	0.438"	Stainless Steel	1"	0.104"	-	RFQ
A	E147-3/8SS6	-	-	0.438"	Stainless Steel	1"	0.104"	-	RFQ
B	E147-1/2	-	Gold Galvanized	0.562"	Steel	1.375"	0.132"	-	RFQ
A	E147-1/2SS6	-	-	1/2"	Stainless Steel	-	-	-	RFQ
C	E147 3/8	Gold	Gold Galvanized	-	Steel	-	1/4"	€50.28
B	E147-3/4	Silver	Electro-Galvanized	0.812"	Steel	2"	0.177"	-	RFQ
A	E147-1/4SS	Silver	-	0.312"	Stainless Steel	0.734"	0.8"	-	RFQ
B	E147-7/8	Silver	Electro-Galvanized	0.938"	Steel	2.25"	0.192"	-	RFQ
A	E147-5/16SS6	Silver	-	0.375"	Stainless Steel	0.875"	0.104"	-	RFQ
A	E147-5/8EG	Silver	Electro-Galvanized	0.688"	Steel	1.75"	0.16"	-	RFQ
B	E147-5/16	Silver	Electro-Galvanized	0.375"	Steel	0.875"	0.104"	-	RFQ
B	E147-5/8	Silver	Electro-Galvanized	0.688"	Steel	1.75"	0.16"	-	RFQ

GRAINGER -

Steel Fender Washer

A

B

C

D

E

F

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Thickness	Price (ex. VAT)
A	U38160.013.0002	#6	5/32"	9/16"	0.047"	€4.03
B	U38160.019.0002	#10	3/16"	11/16"	0.047"	€6.41
C	U38160.025.0002	1/4"	9/32"	9/16"	0.047"	€3.71
D	U38210.018.0050	3/16"	3/16"	1/2"	0.065"	€1.69
E	U38160.031.0001	5/16"	11/32"	5/8"	0.047"	€2.47
F	U38160.087.0002	7/8"	15/16"	3.25"	0.125"	€22.09

GRAINGER -

Carbon Steel Fender Washer

A

B

C

D

E

F

G

H

Style	Model	Fits Bolt Sizes	Inside Dia.	Outside Dia.	Package Weight	Size	Price (ex. VAT)
A	U38210.050.0175	1/2"	0.535"	1.75"	1.40 Lbs.	1/2 x 1 3/4"	€59.22
B	U38210.050.0125	1/2"	0.535"	1.25"	0.91 Lbs.	1/2 x 1 1/4"	€4.41
C	U38210.050.0250	1/2"	0.535"	2.5"	3.70 Lbs.	1/2 x 2 1/2"	€20.86
D	U38210.025.0175	1/4"	0.285"	1.75"	3.02 Lbs.	1/4 x 1 3/4"	€18.71
E	U38210.037.0175	3/8"	0.410"	1.75"	3.08 Lbs.	3/8 x 1 3/4"	€123.65
F	U38210.031.0087	5/16"	0.348"	7/8"	0.90 Lbs.	5/16 x 7/8"	€5.62
G	U38210.031.0175	5/16"	0.348"	1.75"	4.03 Lbs.	5/16 x 1 3/4"	€20.34
H	U38210.031.0100	5/16"	0.348"	1"	1.15 Lbs.	5/16 x 1"	€7.01

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