Collection: Washers - Lock - Internal Tooth

Washers (With Images)

Lock

External Tooth
Internal Tooth

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37 Products in this selection

This is a combined category of Internal Tooth Lock Washers.
Use the filters in the table below, or the category tree above to refine the selection. To order any item, simply click the part number for a full product page, then add to your cart.

Additional resources:
Screws

A more concise listing may be found on the Smallparts store at Washers - Lock - Internal Tooth. Smallparts promote the most popular MBA products.

Nom. ID	OD	Material Thickness (T)	Indicative Image
Nom. ID 9.525 mm _{(0.375 in.)}	OD 17.6 mm _{(0.693 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0095-LI-018-010-CZ (100 Pcs) Lock Washers - 9.525x17.6x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $8.14 AUD Regular price Sale price $8.14 AUD Unit price per Per 100
Nom. ID	OD	Material Thickness (T)	Indicative Image
Nom. ID 9.525 mm _{(0.375 in.)}	OD 17.6 mm _{(0.693 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0095-LI-018-010-CZ (100 Pcs) Lock Washers - 9.525x17.6x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $8.14 AUD Regular price Sale price $8.14 AUD Unit price per Per 100 View the product page first if you are unsure.
W0095-LI-018-010-CZ (100 Pcs) --- Lock Washers - 9.525x17.6x1 mm W0095-LI-018-010-CZ (100 Pcs) --- Lock Washers - 9.525x17.6x1 mm Regular price $8.14 AUD Regular price Sale price $8.14 AUD Unit price per Out of stock! Backorder Now
Nom. ID 10 mm _{(0.394 in.)}	OD 17.6 mm _{(0.693 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0100-LI-018-010-CZ (100 Pcs) Lock Washers - 10x17.6x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $11.32 AUD Regular price Sale price $11.32 AUD Unit price per Per 100
Nom. ID 10 mm _{(0.394 in.)}	OD 17.6 mm _{(0.693 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0100-LI-018-010-CZ (100 Pcs) Lock Washers - 10x17.6x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $11.32 AUD Regular price Sale price $11.32 AUD Unit price per Per 100 View the product page first if you are unsure.
W0100-LI-018-010-CZ (100 Pcs) --- Lock Washers - 10x17.6x1 mm W0100-LI-018-010-CZ (100 Pcs) --- Lock Washers - 10x17.6x1 mm Regular price $11.32 AUD Regular price Sale price $11.32 AUD Unit price per Out of stock! Backorder Now
Nom. ID 11.11 mm _{(0.437 in.)}	OD 20 mm _{(0.787 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0111-LI-020-010-CZ (100 Pcs) Lock Washers - 11.11x20x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $14.23 AUD Regular price Sale price $14.23 AUD Unit price per Per 100
Nom. ID 11.11 mm _{(0.437 in.)}	OD 20 mm _{(0.787 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0111-LI-020-010-CZ (100 Pcs) Lock Washers - 11.11x20x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $14.23 AUD Regular price Sale price $14.23 AUD Unit price per Per 100 View the product page first if you are unsure.
W0111-LI-020-010-CZ (100 Pcs) --- Lock Washers - 11.11x20x1 mm W0111-LI-020-010-CZ (100 Pcs) --- Lock Washers - 11.11x20x1 mm Regular price $14.23 AUD Regular price Sale price $14.23 AUD Unit price per Out of stock! Backorder Now
Nom. ID 12 mm _{(0.472 in.)}	OD 20.3 mm _{(0.799 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Category: Washers - Lock - Internal Tooth - Stainless Steel
Part Number: W0120-LI-020-010-S4 (10 Pcs) Lock Washers - 12x20.3x1 mm 7 units (70 pcs) Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 10
Nom. ID 12 mm _{(0.472 in.)}	OD 20.3 mm _{(0.799 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Category: Washers - Lock - Internal Tooth - Stainless Steel
Part Number: W0120-LI-020-010-S4 (10 Pcs) Lock Washers - 12x20.3x1 mm 7 units (70 pcs) Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 10
W0120-LI-020-010-S4 (10 Pcs) --- Lock Washers - 12x20.3x1 mm Sale W0120-LI-020-010-S4 (10 Pcs) --- Lock Washers - 12x20.3x1 mm Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per 7 Available Now Sale
Nom. ID 12 mm _{(0.472 in.)}	OD 20.3 mm _{(0.799 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0120-LI-020-010-CZ (500 Pcs) Lock Washers - 12x20.3x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $81.41 AUD Regular price Sale price $81.41 AUD Unit price per Per 500
Nom. ID 12 mm _{(0.472 in.)}	OD 20.3 mm _{(0.799 in.)}	Material Thickness (T) 1.00 mm _{(0.039 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0120-LI-020-010-CZ (500 Pcs) Lock Washers - 12x20.3x1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $81.41 AUD Regular price Sale price $81.41 AUD Unit price per Per 500 View the product page first if you are unsure.
W0120-LI-020-010-CZ (500 Pcs) --- Lock Washers - 12x20.3x1 mm W0120-LI-020-010-CZ (500 Pcs) --- Lock Washers - 12x20.3x1 mm Regular price $81.41 AUD Regular price Sale price $81.41 AUD Unit price per Out of stock! Backorder Now
Nom. ID 12.7 mm _{(0.5 in.)}	OD 22.9 mm _{(0.902 in.)}	Material Thickness (T) 1.10 mm _{(0.043 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0127-LI-023-011-CZ (500 Pcs) Lock Washers - 12.7x22.9x1.1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $81.41 AUD Regular price Sale price $81.41 AUD Unit price per Per 500
Nom. ID 12.7 mm _{(0.5 in.)}	OD 22.9 mm _{(0.902 in.)}	Material Thickness (T) 1.10 mm _{(0.043 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0127-LI-023-011-CZ (500 Pcs) Lock Washers - 12.7x22.9x1.1 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $81.41 AUD Regular price Sale price $81.41 AUD Unit price per Per 500 View the product page first if you are unsure.
W0127-LI-023-011-CZ (500 Pcs) --- Lock Washers - 12.7x22.9x1.1 mm W0127-LI-023-011-CZ (500 Pcs) --- Lock Washers - 12.7x22.9x1.1 mm Regular price $81.41 AUD Regular price Sale price $81.41 AUD Unit price per Out of stock! Backorder Now
Nom. ID 15.875 mm _{(0.625 in.)}	OD 27.2 mm _{(1.071 in.)}	Material Thickness (T) 1.30 mm _{(0.051 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0159-LI-027-013-CZ (100 Pcs) Lock Washers - 15.875x27.2x1.3 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $25.32 AUD Regular price Sale price $25.32 AUD Unit price per Per 100
Nom. ID 15.875 mm _{(0.625 in.)}	OD 27.2 mm _{(1.071 in.)}	Material Thickness (T) 1.30 mm _{(0.051 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0159-LI-027-013-CZ (100 Pcs) Lock Washers - 15.875x27.2x1.3 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $25.32 AUD Regular price Sale price $25.32 AUD Unit price per Per 100 View the product page first if you are unsure.
W0159-LI-027-013-CZ (100 Pcs) --- Lock Washers - 15.875x27.2x1.3 mm W0159-LI-027-013-CZ (100 Pcs) --- Lock Washers - 15.875x27.2x1.3 mm Regular price $25.32 AUD Regular price Sale price $25.32 AUD Unit price per Out of stock! Backorder Now
Nom. ID 16 mm _{(0.63 in.)}	OD 27.2 mm _{(1.071 in.)}	Material Thickness (T) 1.30 mm _{(0.051 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0160-LI-027-013-CZ (100 Pcs) Lock Washers - 16x27.2x1.3 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $27.86 AUD Regular price Sale price $27.86 AUD Unit price per Per 100
Nom. ID 16 mm _{(0.63 in.)}	OD 27.2 mm _{(1.071 in.)}	Material Thickness (T) 1.30 mm _{(0.051 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0160-LI-027-013-CZ (100 Pcs) Lock Washers - 16x27.2x1.3 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $27.86 AUD Regular price Sale price $27.86 AUD Unit price per Per 100 View the product page first if you are unsure.
W0160-LI-027-013-CZ (100 Pcs) --- Lock Washers - 16x27.2x1.3 mm W0160-LI-027-013-CZ (100 Pcs) --- Lock Washers - 16x27.2x1.3 mm Regular price $27.86 AUD Regular price Sale price $27.86 AUD Unit price per Out of stock! Backorder Now
Nom. ID 19.05 mm _{(0.75 in.)}	OD 31.6 mm _{(1.244 in.)}	Material Thickness (T) 1.40 mm _{(0.055 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0191-LI-032-014-CZ (250 Pcs) Lock Washers - 19.05x31.6x1.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $85.41 AUD Regular price Sale price $85.41 AUD Unit price per Per 250
Nom. ID 19.05 mm _{(0.75 in.)}	OD 31.6 mm _{(1.244 in.)}	Material Thickness (T) 1.40 mm _{(0.055 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0191-LI-032-014-CZ (250 Pcs) Lock Washers - 19.05x31.6x1.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $85.41 AUD Regular price Sale price $85.41 AUD Unit price per Per 250 View the product page first if you are unsure.
W0191-LI-032-014-CZ (250 Pcs) --- Lock Washers - 19.05x31.6x1.4 mm W0191-LI-032-014-CZ (250 Pcs) --- Lock Washers - 19.05x31.6x1.4 mm Regular price $85.41 AUD Regular price Sale price $85.41 AUD Unit price per Out of stock! Backorder Now
Nom. ID 20 mm _{(0.787 in.)}	OD 32 mm _{(1.26 in.)}	Material Thickness (T) 1.40 mm _{(0.055 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0200-LI-032-014-CZ (250 Pcs) Lock Washers - 20x32x1.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $94.95 AUD Regular price Sale price $94.95 AUD Unit price per Per 250
Nom. ID 20 mm _{(0.787 in.)}	OD 32 mm _{(1.26 in.)}	Material Thickness (T) 1.40 mm _{(0.055 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0200-LI-032-014-CZ (250 Pcs) Lock Washers - 20x32x1.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $94.95 AUD Regular price Sale price $94.95 AUD Unit price per Per 250 View the product page first if you are unsure.
W0200-LI-032-014-CZ (250 Pcs) --- Lock Washers - 20x32x1.4 mm W0200-LI-032-014-CZ (250 Pcs) --- Lock Washers - 20x32x1.4 mm Regular price $94.95 AUD Regular price Sale price $94.95 AUD Unit price per Out of stock! Backorder Now
Nom. ID 20 mm _{(0.787 in.)}	OD 32 mm _{(1.26 in.)}	Material Thickness (T) 1.40 mm _{(0.055 in.)}
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Category: Washers - Lock - Internal Tooth - Stainless Steel
Part Number: W0200-LI-032-014-S4 (10 Pcs) Lock Washers - 20x32x1.4 mm 9 units (90 pcs) Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 10
Nom. ID 20 mm _{(0.787 in.)}	OD 32 mm _{(1.26 in.)}	Material Thickness (T) 1.40 mm _{(0.055 in.)}
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Category: Washers - Lock - Internal Tooth - Stainless Steel
Part Number: W0200-LI-032-014-S4 (10 Pcs) Lock Washers - 20x32x1.4 mm 9 units (90 pcs) Available Immediately \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Per 10
W0200-LI-032-014-S4 (10 Pcs) --- Lock Washers - 20x32x1.4 mm Sale W0200-LI-032-014-S4 (10 Pcs) --- Lock Washers - 20x32x1.4 mm Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per 9 Available Now Sale
Nom. ID 22.225 mm _{(0.875 in.)}	OD 35.8 mm _{(1.409 in.)}	Material Thickness (T) 1.50 mm _{(0.059 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0222-LI-036-015-CZ (250 Pcs) Lock Washers - 22.225x35.8x1.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $252.68 AUD Regular price Sale price $252.68 AUD Unit price per Per 250
Nom. ID 22.225 mm _{(0.875 in.)}	OD 35.8 mm _{(1.409 in.)}	Material Thickness (T) 1.50 mm _{(0.059 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0222-LI-036-015-CZ (250 Pcs) Lock Washers - 22.225x35.8x1.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $252.68 AUD Regular price Sale price $252.68 AUD Unit price per Per 250 View the product page first if you are unsure.
W0222-LI-036-015-CZ (250 Pcs) --- Lock Washers - 22.225x35.8x1.5 mm W0222-LI-036-015-CZ (250 Pcs) --- Lock Washers - 22.225x35.8x1.5 mm Regular price $252.68 AUD Regular price Sale price $252.68 AUD Unit price per Out of stock! Backorder Now
Nom. ID 25.4 mm _{(1 in.)}	OD 41.6 mm _{(1.638 in.)}	Material Thickness (T) 1.70 mm _{(0.067 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0254-LI-042-017-CZ (125 Pcs) Lock Washers - 25.4x41.6x1.7 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $206.86 AUD Regular price Sale price $206.86 AUD Unit price per Per 125
Nom. ID 25.4 mm _{(1 in.)}	OD 41.6 mm _{(1.638 in.)}	Material Thickness (T) 1.70 mm _{(0.067 in.)}
Material: Zinc Plated Steel Category: Washers - Lock - Internal Tooth - Spring Steel
Part Number: W0254-LI-042-017-CZ (125 Pcs) Lock Washers - 25.4x41.6x1.7 mm Out of Stock \| Backorder Now \| Orders can be expected around Wed, Jul 23, 2025 Regular price $206.86 AUD Regular price Sale price $206.86 AUD Unit price per Per 125 View the product page first if you are unsure.
W0254-LI-042-017-CZ (125 Pcs) --- Lock Washers - 25.4x41.6x1.7 mm W0254-LI-042-017-CZ (125 Pcs) --- Lock Washers - 25.4x41.6x1.7 mm Regular price $206.86 AUD Regular price Sale price $206.86 AUD Unit price per Out of stock! Backorder Now