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.

26 results

Black Oil Dipped Hi-Collar Lock Washers

Metric Black Oil Dipped High Collar Lock Washers

18-8 Stainless Steel Hi-Collar Lock Washers

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.

Bolt Size	Thickness	Width	Material	Finish	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
#4	0.022"	0.022"	Carbon Steel	Black w/ Oil Dipped Finish	100	374001	Log in to view price
#4 Hi-Collar Lock Washer - 100 Pack Item #: 374001 Package Weight: 0.1 lbs View Product Details Log in to Order
#6	0.03"	0.03"	Carbon Steel	Black w/ Oil Dipped Finish	100	374000	Log in to view price
#6 Hi-Collar Lock Washer - 100 Pack Item #: 374000 Package Weight: 0.1 lbs View Product Details Log in to Order
#8	0.047"	0.042"	Carbon Steel	Black w/ Oil Dipped Finish	100	374002	Log in to view price
#8 Hi-Collar Lock Washer - 100 Pack Item #: 374002 Package Weight: 0.1 lbs View Product Details Log in to Order
#10	0.047"	0.04"	Carbon Steel	Black w/ Oil Dipped Finish	100	374003	Log in to view price
#10 Hi-Collar Lock Washer - 100 Pack Item #: 374003 Package Weight: 0.1 lbs View Product Details Log in to Order
1/4"	0.078"	0.047"	Carbon Steel	Black w/ Oil Dipped Finish	100	374004	Log in to view price
1/4" Hi-Collar Lock Washer - 100 Pack Item #: 374004 Package Weight: 0.1 lbs View Product Details Log in to Order
5/16"	0.093"	0.062"	Carbon Steel	Black w/ Oil Dipped Finish	100	374005	Log in to view price
5/16" Hi-Collar Lock Washer - 100 Pack Item #: 374005 Package Weight: 0.3 lbs View Product Details Log in to Order
3/8"	0.125"	0.08"	Carbon Steel	Black w/ Oil Dipped Finish	100	374006	Log in to view price
3/8" Hi-Collar Lock Washer - 100 Pack Item #: 374006 Package Weight: 0.5 lbs View Product Details Log in to Order
7/16"	0.14"	0.09"	Carbon Steel	Black w/ Oil Dipped Finish	100	374007	Log in to view price
7/16" Hi-Collar Lock Washer - 100 Pack Item #: 374007 Package Weight: 0.7 lbs View Product Details Log in to Order
1/2"	0.172"	0.103"	Carbon Steel	Black w/ Oil Dipped Finish	100	374008	Log in to view price
1/2" Hi-Collar Lock Washer - 100 Pack Item #: 374008 Package Weight: 1.1 lbs View Product Details Log in to Order
5/8"	0.203"	0.13"	Carbon Steel	Black w/ Oil Dipped Finish	50	374009	Log in to view price
5/8" Hi-Collar Lock Washer - 50 Pack Item #: 374009 Package Weight: 1 lbs View Product Details Log in to Order
3/4"	0.218"	0.154"	Carbon Steel	Black w/ Oil Dipped Finish	50	374010	Log in to view price
3/4" Hi-Collar Lock Washer - 50 Pack Item #: 374010 Package Weight: 1.5 lbs View Product Details Log in to Order
7/8"	0.234"	0.182"	Carbon Steel	Black w/ Oil Dipped Finish	25	374012	Log in to view price
7/8" Hi-Collar Lock Washer - 25 Pack Item #: 374012 Package Weight: 1.1 lbs View Product Details Log in to Order

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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.

Bolt Size	Inside Diameter	Outside Diameter	Thickness	Material	Finish	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
M4	4.1 mm	7 mm	1.2 mm	Spring Steel	Black w/ Oil Dipped Finish	100	454004	Log in to view price
M4 Black Oil Dipped High Collar Lock Washer - 100 Pack Item #: 454004 Package Weight: 0.1 lbs View Product Details Log in to Order
M5	5.1 mm	8.8 mm	1.6 mm	Spring Steel	Black w/ Oil Dipped Finish	100	454005	Log in to view price
M5 Black Oil Dipped High Collar Lock Washer - 100 Pack Item #: 454005 Package Weight: 0.1 lbs View Product Details Log in to Order
M6	6.1 mm	9.9 mm	1.6 mm	Spring Steel	Black w/ Oil Dipped Finish	100	454006	Log in to view price
M6 Black Oil Dipped High Collar Lock Washer - 100 Pack Item #: 454006 Package Weight: 0.1 lbs View Product Details Log in to Order
M8	8.1 mm	12.7 mm	2 mm	Spring Steel	Black w/ Oil Dipped Finish	100	454008	Log in to view price
M8 Black Oil Dipped High Collar Lock Washer - 100 Pack Item #: 454008 Package Weight: 0.3 lbs View Product Details Log in to Order
M10	10.2 mm	16 mm	2.5 mm	Spring Steel	Black w/ Oil Dipped Finish	100	454010	Log in to view price
M10 Black Oil Dipped High Collar Lock Washer - 100 Pack Item #: 454010 Package Weight: 0.4 lbs View Product Details Log in to Order
M12	12.2 mm	18 mm	2.5 mm	Spring Steel	Black w/ Oil Dipped Finish	100	454012	Log in to view price
M12 Black Oil Dipped High Collar Lock Washer - 100 Pack Item #: 454012 Package Weight: 0.5 lbs View Product Details Log in to Order
M16	16.2 mm	24.4 mm	3.5 mm	Spring Steel	Black w/ Oil Dipped Finish	25	454016	Log in to view price
M16 Black Oil Dipped High Collar Lock Washer - 25 Pack Item #: 454016 Package Weight: 0.4 lbs View Product Details Log in to Order
M20	20.2 mm	30.6 mm	4.5 mm	Spring Steel	Black w/ Oil Dipped Finish	25	454020	Log in to view price
M20 Black Oil Dipped High Collar Lock Washer - 25 Pack Item #: 454020 Package Weight: 0.7 lbs View Product Details Log in to Order

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.

Bolt Size	Thickness	Width	Material	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
#10	0.047"	0.042"	18-8 Stainless Steel	100	333220	Log in to view price
#10 18-8 Stainless Steel Hi-Collar Lock Washer - 100 Pack Item #: 333220 Package Weight: 0.1 lbs View Product Details Log in to Order
1/4"	0.078"	0.047"	18-8 Stainless Steel	100	333224	Log in to view price
1/4" 18-8 Stainless Steel Hi-Collar Lock Washer - 100 Pack Item #: 333224 Package Weight: 0.1 lbs View Product Details Log in to Order
5/16"	0.093"	0.062"	18-8 Stainless Steel	100	333225	Log in to view price
5/16" 18-8 Stainless Steel Hi-Collar Lock Washer - 100 Pack Item #: 333225 Package Weight: 0.2 lbs View Product Details Log in to Order
3/8"	0.125"	0.076"	18-8 Stainless Steel	50	333226	Log in to view price
3/8" 18-8 Stainless Steel Hi-Collar Lock Washer - 50 Pack Item #: 333226 Package Weight: 0.2 lbs View Product Details Log in to Order
1/2"	0.172"	0.103"	18-8 Stainless Steel	50	333228	Log in to view price
1/2" 18-8 Stainless Steel Hi-Collar Lock Washer - 50 Pack Item #: 333228 Package Weight: 0.5 lbs View Product Details Log in to Order