Internal/External Tooth Lock Washers

Vibration loosening your connections? Internal/external tooth lock washers bite into the fastener and base metal to keep assemblies tight and maintain electrical contact for grounding. Dual-tooth grip boosts holding power where equipment shakes. Zinc plating helps fight corrosion outdoors and in washdown areas. Kimball Midwest keeps them on hand so you cut comebacks.

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Internal/External Combination Tooth Lock Washers

Combination Tooth Lock Washers

Internal/External Combination Tooth Lock Washers

Combination design combines internal and external toothed lock washers for enhanced effectiveness. Vibration resistant with dual teeth for superior holding power in vibration-prone environments. Ideal for grounding applications with teeth ensuring a secure grip on fasteners and base materials. Weather resistant due to zinc plating that resists corrosion.

Bolt Size	Material	Finish	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
#6	Alloy Steel	Zinc Plated	100	374400	Log in to view price
#6 Internal/External Combination Tooth Lock Washers - 100 Pack Item #: 374400 Package Weight: 0.1 lbs View Product Details Log in to Order
#8	Alloy Steel	Zinc Plated	100	374402	Log in to view price
#8 Internal/External Combination Tooth Lock Washers - 100 Pack Item #: 374402 Package Weight: 0.1 lbs View Product Details Log in to Order
#10	Alloy Steel	Zinc Plated	100	374403	Log in to view price
#10 Internal/External Combination Tooth Lock Washers - 100 Pack Item #: 374403 Package Weight: 0.1 lbs View Product Details Log in to Order
1/4"	Alloy Steel	Zinc Plated	100	374404	Log in to view price
1/4" Internal/External Combination Tooth Lock Washers - 100 Pack Item #: 374404 Package Weight: 0.2 lbs View Product Details Log in to Order
5/16"	Alloy Steel	Zinc Plated	50	374405	Log in to view price
5/16" Internal/External Combination Tooth Lock Washers - 50 Pack Item #: 374405 Package Weight: 0.2 lbs View Product Details Log in to Order
3/8"	Alloy Steel	Zinc Plated	50	374406	Log in to view price
3/8" Internal/External Combination Tooth Lock Washers - 50 Pack Item #: 374406 Package Weight: 0.2 lbs View Product Details Log in to Order
7/16"	Alloy Steel	Zinc Plated	50	374407	Log in to view price
7/16" Internal/External Combination Tooth Lock Washers - 50 Pack Item #: 374407 Package Weight: 0.6 lbs View Product Details Log in to Order
1/2"	Alloy Steel	Zinc Plated	25	374408	Log in to view price
1/2" Internal/External Combination Tooth Lock Washers - 25 Pack Item #: 374408 Package Weight: 0.3 lbs View Product Details Log in to Order
9/16"	Alloy Steel	Zinc Plated	25	374409	Log in to view price
9/16" Internal/External Combination Tooth Lock Washers - 25 Pack Item #: 374409 Package Weight: 0.8 lbs View Product Details Log in to Order
5/8"	Alloy Steel	Zinc Plated	25	374410	Log in to view price
5/8" Internal/External Grade 5 Combination Tooth Lock Washers - 25 Pack Item #: 374410 Package Weight: 1 lbs View Product Details Log in to Order

Combination Tooth Lock Washers

Bolt Size: 1/4” (6.35mm), Washer O.D: 23/32” (18.25mm)

Bolt Size	Outside Diameter	Package Qty	Item #	Price Want to view pricing for this product? Log In or Create Login Not a Kimball Midwest Customer? Register
1/4"	23/32"	100	131201	Log in to view price
1/4" Combination Tooth Lock Washer - 100 Pack Item #: 131201 Package Weight: 0.2 lbs View Product Details Log in to Order