Keysteel Lengths - Square - Carbon Steel

10 Products in this selection
  • Plain carbon steel key steel. Square steel bar that can be used for keysteel or for small construction projects.
  • Use oversized for replacing keys where the keyway may be slightly worn - standard aftermarket keysteel
  • Use undersized for manufacturing and new applications where the keyway tolerances can be controlled
Additional resources:
Keysteel Catalogue PDF

A more comprehensive listing may be found on the MBA Minibearings main store at Keysteel Lengths - Square - Carbon Steel.
Width (s1) Height (s2) Length (L) Indicative
Image
Width (s1)
1.588
mm
+ 0.051 / - 0.00
Height (s2)
1.588
mm
+ 0.051 / - 0.00
Length (L)
914
mm
+/- 3.2
1037843 | 4R-0016-0914-KPO --- Square Keysteel Lengths - 1.588x1.588x914 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0016-0914-KPO Square Keysteel Lengths - 1.588x1.588x914 mm - Carbon Steel 1045
19 Available Now | Further orders can be expected around Wed, May 28, 2025
$4.32 AUD
$4.32 AUD
Each
Width (s1) Height (s2) Length (L) Indicative
Image
Width (s1)
1.588
mm
+ 0.051 / - 0.00
Height (s2)
1.588
mm
+ 0.051 / - 0.00
Length (L)
914
mm
+/- 3.2
1037843 | 4R-0016-0914-KPO --- Square Keysteel Lengths - 1.588x1.588x914 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0016-0914-KPO Square Keysteel Lengths - 1.588x1.588x914 mm - Carbon Steel 1045
19 Available Now | Further orders can be expected around Wed, May 28, 2025
$4.32 AUD
$4.32 AUD
Each
View the product page first if you are unsure.
Width (s1)
1.588
mm
+ 0 / - 0.051
Height (s2)
1.588
mm
+ 0 / - 0.051
Length (L)
300
mm
+/- 3.2
1039609 | 4R-0016-0300-KPU (5 Pcs) --- Square Keysteel Lengths - 1.588x1.588x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Standard Undersized   
Part Number: 4R-0016-0300-KPU (5 Pcs) Square Keysteel Lengths - 1.588x1.588x300 mm - Carbon Steel 1045
1 pack (5 pcs) Available Now | Further orders can be expected around Wed, May 28, 2025
$5.77 AUD
$5.77 AUD
Per 5
Width (s1)
1.588
mm
+ 0 / - 0.051
Height (s2)
1.588
mm
+ 0 / - 0.051
Length (L)
300
mm
+/- 3.2
1039609 | 4R-0016-0300-KPU (5 Pcs) --- Square Keysteel Lengths - 1.588x1.588x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Standard Undersized   
Part Number: 4R-0016-0300-KPU (5 Pcs) Square Keysteel Lengths - 1.588x1.588x300 mm - Carbon Steel 1045
1 pack (5 pcs) Available Now | Further orders can be expected around Wed, May 28, 2025
$5.77 AUD
$5.77 AUD
Per 5
View the product page first if you are unsure.
Width (s1)
4.000
mm
+ 0.051 / - 0.00
Height (s2)
4.000
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1051545 | 4R-0040-0300-KPO --- Square Keysteel Lengths - 4x4x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0040-0300-KPO Square Keysteel Lengths - 4x4x300 mm - Carbon Steel 1045
27 Available Now | Further orders can be expected around Wed, May 28, 2025
$5.86 AUD
$5.86 AUD
Each
Width (s1)
4.000
mm
+ 0.051 / - 0.00
Height (s2)
4.000
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1051545 | 4R-0040-0300-KPO --- Square Keysteel Lengths - 4x4x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0040-0300-KPO Square Keysteel Lengths - 4x4x300 mm - Carbon Steel 1045
27 Available Now | Further orders can be expected around Wed, May 28, 2025
$5.86 AUD
$5.86 AUD
Each
View the product page first if you are unsure.
Width (s1)
3.969
mm
+ 0.051 / - 0.00
Height (s2)
3.969
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1052445 | 4R-0039-0300-KPO --- Square Keysteel Lengths - 3.969x3.969x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0039-0300-KPO Square Keysteel Lengths - 3.969x3.969x300 mm - Carbon Steel 1045
45 Available Now | Further orders can be expected around Wed, May 28, 2025
$8.41 AUD
$8.41 AUD
Each
Width (s1)
3.969
mm
+ 0.051 / - 0.00
Height (s2)
3.969
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1052445 | 4R-0039-0300-KPO --- Square Keysteel Lengths - 3.969x3.969x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0039-0300-KPO Square Keysteel Lengths - 3.969x3.969x300 mm - Carbon Steel 1045
45 Available Now | Further orders can be expected around Wed, May 28, 2025
$8.41 AUD
$8.41 AUD
Each
View the product page first if you are unsure.
Width (s1)
4.763
mm
+ 0.051 / - 0.00
Height (s2)
4.763
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1059774 | 4R-0048-0300-KPO --- Square Keysteel Lengths - 4.763x4.763x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0048-0300-KPO Square Keysteel Lengths - 4.763x4.763x300 mm - Carbon Steel 1045
20 Available Now | Further orders can be expected around Wed, May 28, 2025
$6.86 AUD
$6.86 AUD
Each
Width (s1)
4.763
mm
+ 0.051 / - 0.00
Height (s2)
4.763
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1059774 | 4R-0048-0300-KPO --- Square Keysteel Lengths - 4.763x4.763x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0048-0300-KPO Square Keysteel Lengths - 4.763x4.763x300 mm - Carbon Steel 1045
20 Available Now | Further orders can be expected around Wed, May 28, 2025
$6.86 AUD
$6.86 AUD
Each
View the product page first if you are unsure.
Width (s1)
5.000
mm
+ 0.051 / - 0.00
Height (s2)
5.000
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1060324 | 4R-0050-0300-KPO --- Square Keysteel Lengths - 5x5x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0050-0300-KPO Square Keysteel Lengths - 5x5x300 mm - Carbon Steel 1045
2 Available Now | Further orders can be expected around Mon, Jun 09, 2025
$12.14 AUD
$14.56 AUD $12.14 AUD
Each
Width (s1)
5.000
mm
+ 0.051 / - 0.00
Height (s2)
5.000
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1060324 | 4R-0050-0300-KPO --- Square Keysteel Lengths - 5x5x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0050-0300-KPO Square Keysteel Lengths - 5x5x300 mm - Carbon Steel 1045
2 Available Now | Further orders can be expected around Mon, Jun 09, 2025
$12.14 AUD
$14.56 AUD $12.14 AUD
Each
View the product page first if you are unsure.
Width (s1)
5.000
mm
+ 0 / - 0.051
Height (s2)
5.000
mm
+ 0 / - 0.051
Length (L)
1000
mm
+/- 3.2
Square Keysteel Lengths - 5x5x1000 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Standard Undersized   
Part Number: 4R-0050-1000-KPU Square Keysteel Lengths - 5x5x1000 mm - Carbon Steel 1045
4 Available Now | Further orders can be expected around Wed, May 28, 2025
$21.14 AUD
$21.14 AUD
Each
Width (s1)
5.000
mm
+ 0 / - 0.051
Height (s2)
5.000
mm
+ 0 / - 0.051
Length (L)
1000
mm
+/- 3.2
Square Keysteel Lengths - 5x5x1000 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Standard Undersized   
Part Number: 4R-0050-1000-KPU Square Keysteel Lengths - 5x5x1000 mm - Carbon Steel 1045
4 Available Now | Further orders can be expected around Wed, May 28, 2025
$21.14 AUD
$21.14 AUD
Each
View the product page first if you are unsure.
Width (s1)
8.000
mm
+ 0.051 / - 0.00
Height (s2)
8.000
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1081256 | 4R-0080-0300-KPO --- Square Keysteel Lengths - 8x8x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0080-0300-KPO Square Keysteel Lengths - 8x8x300 mm - Carbon Steel 1045
1 Available Now | Further orders can be expected around Wed, May 28, 2025
$24.68 AUD
$29.62 AUD $24.68 AUD
Each
Width (s1)
8.000
mm
+ 0.051 / - 0.00
Height (s2)
8.000
mm
+ 0.051 / - 0.00
Length (L)
300
mm
+/- 3.2
1081256 | 4R-0080-0300-KPO --- Square Keysteel Lengths - 8x8x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0080-0300-KPO Square Keysteel Lengths - 8x8x300 mm - Carbon Steel 1045
1 Available Now | Further orders can be expected around Wed, May 28, 2025
$24.68 AUD
$29.62 AUD $24.68 AUD
Each
View the product page first if you are unsure.
Width (s1)
9.525
mm
+ 0 / - 0.051
Height (s2)
9.525
mm
+ 0 / - 0.051
Length (L)
300
mm
+/- 3.2
1085137 | 4R-0095-0300-KPU --- Square Keysteel Lengths - 9.525x9.525x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Standard Undersized   
Part Number: 4R-0095-0300-KPU Square Keysteel Lengths - 9.525x9.525x300 mm - Carbon Steel 1045
13 Available Now | Further orders can be expected around Wed, May 28, 2025
$18.95 AUD
$22.75 AUD $18.95 AUD
Each
Width (s1)
9.525
mm
+ 0 / - 0.051
Height (s2)
9.525
mm
+ 0 / - 0.051
Length (L)
300
mm
+/- 3.2
1085137 | 4R-0095-0300-KPU --- Square Keysteel Lengths - 9.525x9.525x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Standard Undersized   
Part Number: 4R-0095-0300-KPU Square Keysteel Lengths - 9.525x9.525x300 mm - Carbon Steel 1045
13 Available Now | Further orders can be expected around Wed, May 28, 2025
$18.95 AUD
$22.75 AUD $18.95 AUD
Each
View the product page first if you are unsure.
Width (s1)
25.400
mm
+ 0.076 / - 0.00
Height (s2)
25.400
mm
+ 0.076 / - 0.00
Length (L)
300
mm
+/- 3.2
1135338 | 4R-0254-0300-KPO --- Square Keysteel Lengths - 25.4x25.4x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0254-0300-KPO Square Keysteel Lengths - 25.4x25.4x300 mm - Carbon Steel 1045
2 Available Now | Further orders can be expected around Wed, May 28, 2025
$151.59 AUD
$181.91 AUD $151.59 AUD
Each
Width (s1)
25.400
mm
+ 0.076 / - 0.00
Height (s2)
25.400
mm
+ 0.076 / - 0.00
Length (L)
300
mm
+/- 3.2
1135338 | 4R-0254-0300-KPO --- Square Keysteel Lengths - 25.4x25.4x300 mm - Carbon Steel 1045
Material: Carbon Steel 1045    Finish: Plain    Tolerance Type: Oversized   
Part Number: 4R-0254-0300-KPO Square Keysteel Lengths - 25.4x25.4x300 mm - Carbon Steel 1045
2 Available Now | Further orders can be expected around Wed, May 28, 2025
$151.59 AUD
$181.91 AUD $151.59 AUD
Each
View the product page first if you are unsure.