Hi-Collar Split Lock Washers
When a socket head cap screw wants to back out, hi-collar split lock washers keep the squeeze on. The tall collar centers under the head for better bite in counterbores and recessed holes. Go black oil dipped spring steel for everyday torque jobs or 18-8 stainless when moisture and washdowns are in the mix.
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Black Oil Dipped Hi-Collar Lock Washers
Black oil-dipped hi-collar lock washers constructed from carbon steel. These washers feature a raised collar profile and oil-dipped black finish that helps resist corrosion and improves clamp retention under vibration. Offered in standard SAE sizes for general fastening applications.
| Item # | Bolt Size | Thickness | Width | Material | Finish | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|
|
|
374001
|
#4
|
0.022"
|
0.022"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374000
|
#6
|
0.03"
|
0.03"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374002
|
#8
|
0.047"
|
0.042"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374003
|
#10
|
0.047"
|
0.04"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374004
|
1/4"
|
0.078"
|
0.047"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374005
|
5/16"
|
0.093"
|
0.062"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374006
|
3/8"
|
0.125"
|
0.08"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374007
|
7/16"
|
0.14"
|
0.09"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374008
|
1/2"
|
0.172"
|
0.103"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
374009
|
5/8"
|
0.203"
|
0.13"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
50
|
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|
|
374010
|
3/4"
|
0.218"
|
0.154"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
50
|
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|
|
374012
|
7/8"
|
0.234"
|
0.182"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
25
|
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|
|
374014
|
1"
|
0.25"
|
0.208"
|
Carbon Steel
|
Black w/ Oil Dipped Finish
|
25
|
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Metric Black Oil Dipped High Collar Lock Washers
Metric black oil-dipped high collar lock washers made from spring steel for use with socket head cap screws. The high collar and spring-steel construction provide secure locking and improved load distribution while the oil-dipped finish helps resist corrosion and eases assembly.
| Item # | Bolt Size | Inside Diameter | Outside Diameter | Thickness | Material | Finish | Package Qty | |||
|---|---|---|---|---|---|---|---|---|---|---|
|
|
454004
|
M4
|
4.1 mm
|
7 mm
|
1.2 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
454005
|
M5
|
5.1 mm
|
8.8 mm
|
1.6 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
454006
|
M6
|
6.1 mm
|
9.9 mm
|
1.6 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
454008
|
M8
|
8.1 mm
|
12.7 mm
|
2 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
454010
|
M10
|
10.2 mm
|
16 mm
|
2.5 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
454012
|
M12
|
12.2 mm
|
18 mm
|
2.5 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
100
|
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|
|
454016
|
M16
|
16.2 mm
|
24.4 mm
|
3.5 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
25
|
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|
|
454020
|
M20
|
20.2 mm
|
30.6 mm
|
4.5 mm
|
Spring Steel
|
Black w/ Oil Dipped Finish
|
25
|
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18-8 Stainless Steel Hi-Collar Lock Washers
18-8 stainless steel hi-collar lock washers designed for use with SAE fasteners. Hardened 18-8 construction resists corrosion and provides consistent locking action; thicker collars offer improved bearing area. Suitable for general machinery and assembly applications.
| Item # | Bolt Size | Thickness | Width | Material | Package Qty | |||
|---|---|---|---|---|---|---|---|---|
|
|
333220
|
#10
|
0.047"
|
0.042"
|
18-8 Stainless Steel
|
100
|
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|
|
333224
|
1/4"
|
0.078"
|
0.047"
|
18-8 Stainless Steel
|
100
|
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|
|
333225
|
5/16"
|
0.093"
|
0.062"
|
18-8 Stainless Steel
|
100
|
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|
|
333226
|
3/8"
|
0.125"
|
0.076"
|
18-8 Stainless Steel
|
50
|
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|
|
333228
|
1/2"
|
0.172"
|
0.103"
|
18-8 Stainless Steel
|
50
|
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13 options | Item #:
374001
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8 options | Item #:
454004
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5 options | Item #:
333220
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