Washers - Square - Heavy Duty - Steel

Washers -> Square -> Heavy Duty -> Steel

There are 6 products in the sub-categories of Washers - Square - Heavy Duty - Steel. Browse the Washers - Square - Heavy Duty - Steel products table.

Category Details

A selection of Steel Heavy Duty Square Washers. Zinc plated and carbon steel selection.

  • 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 - Heavy Duty - Steel category on the Small Parts & Bearings online store.
Nominal Inside Diameter (A) Outside Length (B) Thickness Indicative
Image
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    Actual ID (Ref): 13.494 mm   
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) Outside Length (B) Thickness Indicative
Image
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    Actual ID (Ref): 13.494 mm   
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    Actual ID (Ref): 13.494 mm   
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    Actual ID (Ref): 13.494 mm   
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)
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    Actual ID (Ref): 16.669 mm   
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    Actual ID (Ref): 16.669 mm   
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    Actual ID (Ref): 20.638 mm   
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    Actual ID (Ref): 20.638 mm   
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    Actual ID (Ref): 20.638 mm   
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    Actual ID (Ref): 20.638 mm   
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    Actual ID (Ref): 26.988 mm   
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    Actual ID (Ref): 26.988 mm   
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.