Washers - Square

Washers -> Square

There are 9 products in the sub-categories of Washers - Square. Browse the Washers - Square products table. To narrow down the selection, please choose a sub-category from the links below.

Category Details

This category includes various types of square washers.
  • Square washers are designed to distribute loads and prevent rotation when placed in a square recess or used with square neck screws.
  • Often used in structural applications where greater stability and load distribution are needed than what a standard round washer provides.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Washers - Square category on the Small Parts & Bearings online store.
Nominal Inside Diameter (A) Outside Length (B) Thickness Indicative
Image
Nominal Inside Diameter (A)
9.525
mm

(Equiv. 0.375 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 9.525x50.8x6.35 mm - Stainless Steel 303 PV Similar to A2, 304, 18-8
Material: Stainless Steel 303 PV (Similar to A2, 304, 18-8)   
Category: Washers - Square - Heavy Duty
Part Number: W0095-SQ-051064S4
Square Washers - 9.525x50.8x6.35 mm Heavy Duty - Stainless Steel 303 PV Similar to A2, 304, 18-8 Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$46.59 AUD
$46.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A) Outside Length (B) Thickness Indicative
Image
Nominal Inside Diameter (A)
9.525
mm

(Equiv. 0.375 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 9.525x50.8x6.35 mm - Stainless Steel 303 PV Similar to A2, 304, 18-8
Material: Stainless Steel 303 PV (Similar to A2, 304, 18-8)   
Category: Washers - Square - Heavy Duty
Part Number: W0095-SQ-051064S4
Square Washers - 9.525x50.8x6.35 mm Heavy Duty - Stainless Steel 303 PV Similar to A2, 304, 18-8 Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$46.59 AUD
$46.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
12.7
mm

(Equiv. 0.5 in.)
Outside Length (B)
34.925
mm

(Equiv. 1.375 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 12.7x34.925x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0127-SQ-035-064-C
Square Washers - 12.7x34.925x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$12.32 AUD
$12.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
12.7
mm

(Equiv. 0.5 in.)
Outside Length (B)
34.925
mm

(Equiv. 1.375 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 12.7x34.925x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0127-SQ-035-064-C
Square Washers - 12.7x34.925x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$12.32 AUD
$12.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
12.7
mm

(Equiv. 0.5 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 12.7x50.8x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0127-SQ-051-064-C
Square Washers - 12.7x50.8x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$16.50 AUD
$19.80 AUD $16.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
12.7
mm

(Equiv. 0.5 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 12.7x50.8x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0127-SQ-051-064-C
Square Washers - 12.7x50.8x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$16.50 AUD
$19.80 AUD $16.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
12.7
mm

(Equiv. 0.5 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 12.7x50.8x6.35 mm - Stainless Steel 303 PV Similar to A2, 304, 18-8
Material: Stainless Steel 303 PV (Similar to A2, 304, 18-8)   
Category: Washers - Square - Heavy Duty
Part Number: W0127-SQ-051-064-S4
Square Washers - 12.7x50.8x6.35 mm Heavy Duty - Stainless Steel 303 PV Similar to A2, 304, 18-8 Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$45.77 AUD
$54.93 AUD $45.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
12.7
mm

(Equiv. 0.5 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 12.7x50.8x6.35 mm - Stainless Steel 303 PV Similar to A2, 304, 18-8
Material: Stainless Steel 303 PV (Similar to A2, 304, 18-8)   
Category: Washers - Square - Heavy Duty
Part Number: W0127-SQ-051-064-S4
Square Washers - 12.7x50.8x6.35 mm Heavy Duty - Stainless Steel 303 PV Similar to A2, 304, 18-8 Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$45.77 AUD
$54.93 AUD $45.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
15.875
mm

(Equiv. 0.625 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 15.875x50.8x6.35 mm - Stainless Steel 303 PV Similar to A2, 304, 18-8
Material: Stainless Steel 303 PV (Similar to A2, 304, 18-8)   
Category: Washers - Square - Heavy Duty
Part Number: W0159-SQ-051-064-S4
Square Washers - 15.875x50.8x6.35 mm Heavy Duty - Stainless Steel 303 PV Similar to A2, 304, 18-8 Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$46.41 AUD
$55.69 AUD $46.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
15.875
mm

(Equiv. 0.625 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 15.875x50.8x6.35 mm - Stainless Steel 303 PV Similar to A2, 304, 18-8
Material: Stainless Steel 303 PV (Similar to A2, 304, 18-8)   
Category: Washers - Square - Heavy Duty
Part Number: W0159-SQ-051-064-S4
Square Washers - 15.875x50.8x6.35 mm Heavy Duty - Stainless Steel 303 PV Similar to A2, 304, 18-8 Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$46.41 AUD
$55.69 AUD $46.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
15.875
mm

(Equiv. 0.625 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 15.875x50.8x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0159-SQ-051-064-C
Square Washers - 15.875x50.8x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$17.14 AUD
$20.56 AUD $17.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
15.875
mm

(Equiv. 0.625 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 15.875x50.8x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0159-SQ-051-064-C
Square Washers - 15.875x50.8x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$17.14 AUD
$20.56 AUD $17.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
19.05
mm

(Equiv. 0.75 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 19.05x50.8x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0191-SQ-051-064-C
Square Washers - 19.05x50.8x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$16.50 AUD
$19.80 AUD $16.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
19.05
mm

(Equiv. 0.75 in.)
Outside Length (B)
50.8
mm

(Equiv. 2 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 19.05x50.8x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0191-SQ-051-064-C
Square Washers - 19.05x50.8x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$16.50 AUD
$19.80 AUD $16.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
19.05
mm

(Equiv. 0.75 in.)
Outside Length (B)
63.5
mm

(Equiv. 2.5 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 19.05x63.5x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0191-SQ-064-064-C
Square Washers - 19.05x63.5x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$25.14 AUD
$30.16 AUD $25.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
19.05
mm

(Equiv. 0.75 in.)
Outside Length (B)
63.5
mm

(Equiv. 2.5 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 19.05x63.5x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0191-SQ-064-064-C
Square Washers - 19.05x63.5x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$25.14 AUD
$30.16 AUD $25.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
25.4
mm

(Equiv. 1 in.)
Outside Length (B)
63.5
mm

(Equiv. 2.5 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 25.4x63.5x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0254-SQ-064-064-C
Square Washers - 25.4x63.5x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$24.59 AUD
$29.51 AUD $24.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Nominal Inside Diameter (A)
25.4
mm

(Equiv. 1 in.)
Outside Length (B)
63.5
mm

(Equiv. 2.5 in.)
Thickness
6.35
mm

(Equiv. 0.25 in.)
Square Washers - 25.4x63.5x6.35 mm - Carbon Spring Steel Self Finish
Material: Carbon Spring Steel Self Finish   
Category: Washers - Square - Heavy Duty
Part Number: W0254-SQ-064-064-C
Square Washers - 25.4x63.5x6.35 mm Heavy Duty - Carbon Spring Steel Self Finish Washer
Out of Stock | Backorder Now | Orders can be expected around Mon, Oct 27, 2025
$24.59 AUD
$29.51 AUD $24.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.