Made in USA - 9/16", 0.187" Thick Split Lock Washer - Alloy Steel, Uncoated, 0.57" Min ID, 0.587" Max ID, 0.981" Max OD

Item #: 88548680
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Split lock washers have a split at one point along their outer diameter, which creates compression and tension to lock the nut in place. Split lock washers are used in high-vibration applications.

Alloy steel is the strongest of all steel types. It has high tensile strength and offers excellent resistance to wear, fatigue and galling.

Product Specifications
System of Measurement	Inch
Type	Split Lock Washer
Screw Size	9/16
Material	Alloy Steel
Finish/Coating	Uncoated
Thickness (Decimal Inch)	0.1870
Minimum Inside Diameter (Decimal Inch)	0.5700
Maximum Inside Diameter (Decimal Inch)	0.5870
Maximum Outside Diameter (Decimal Inch)	0.9810
Military Specification	Does Not Meet Military Specifications

Product Specifications

System of Measurement Inch

Type Split Lock Washer

Screw Size 9/16

Material Alloy Steel

Finish/Coating Uncoated

Thickness (Decimal Inch) 0.1870

Minimum Inside Diameter (Decimal Inch) 0.5700

Maximum Inside Diameter (Decimal Inch) 0.5870

Maximum Outside Diameter (Decimal Inch) 0.9810

Military Specification Does Not Meet Military Specifications

$10.01

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Made in USA - Flat Washers Type: High-Temperature System of Measurement: Inch

Item #: 19261858
Brand: Made in USA
Model #:

Features and Benefits

High-Temperature flat washers are used in applications where thermal, chemical, and combustion properties are critical to performance.

Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.

Product Specifications

Flat Washers; Type: High-Temperature ; System of Measurement: Inch ; Screw Size: 1/2 ; Inside Diameter (Inch): 9/16 ; Outside Diameter (Inch): 1-3/8 ; Thickness (Decimal Inch): 0.0200

Type High-Temperature

System of Measurement Inch

Screw Size 1/2

Inside Diameter (Inch) 9/16

Outside Diameter (Inch) 1-3/8

Thickness (Decimal Inch) 0.0200

Material Grade A286

Material Stainless Steel

Finish/Coating Plain

Fastener Standard ASME B18.2.1

Minimum Thickness (Decimal Inch) 0.0860

Maximum Thickness (Decimal Inch) 0.1320

$64.65

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Made in USA - Flat Washers Type: High-Temperature System of Measurement: Inch

Item #: 19261379
Brand: Made in USA
Model #:

Features and Benefits

High-Temperature flat washers are used in applications where thermal, chemical, and combustion properties are critical to performance.

Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications.

Product Specifications

Flat Washers; Type: High-Temperature ; System of Measurement: Inch ; Screw Size: #6 ; Inside Diameter (Inch): 5/32 ; Outside Diameter (Inch): 3/8 ; Thickness (Decimal Inch): 0.0830

Type High-Temperature

System of Measurement Inch

Screw Size #6

Inside Diameter (Inch) 5/32

Outside Diameter (Inch) 3/8

Thickness (Decimal Inch) 0.0830

Material Grade A286

Material Stainless Steel

Finish/Coating Plain

Fastener Standard ASME B18.2.1

Minimum Thickness (Decimal Inch) 0.0360

Maximum Thickness (Decimal Inch) 0.0650

$33.40

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164860
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #10 ; Inside Diameter (Decimal Inch): 0.1940 ; Outside Diameter (Inch): 3/8 ; Thickness (Decimal Inch): 0.0320

Type Standard

System of Measurement Inch

Screw Size #10

Inside Diameter (Decimal Inch) 0.1940

Outside Diameter (Inch) 3/8

Thickness (Decimal Inch) 0.0320

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$32.78

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164878
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 5/16 ; Inside Diameter (Decimal Inch): 0.3400 ; Outside Diameter (Decimal Inch): 0.7400 ; Thickness (Decimal Inch): 0.0620

Type Standard

System of Measurement Inch

Screw Size 5/16

Inside Diameter (Decimal Inch) 0.3400

Outside Diameter (Decimal Inch) 0.7400

Thickness (Decimal Inch) 0.0620

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$158.96

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164951
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 5/16 ; Inside Diameter (Decimal Inch): 0.3170 ; Outside Diameter (Inch): 1/2 ; Thickness (Inch): 1/8

Type Standard

System of Measurement Inch

Screw Size 5/16

Inside Diameter (Decimal Inch) 0.3170

Outside Diameter (Inch) 1/2

Thickness (Inch) 1/8

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$47.56

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164993
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 1/2 ; Inside Diameter (Decimal Inch): 0.5050 ; Outside Diameter (Inch): 3/4 ; Thickness (Decimal Inch): 0.0620

Type Standard

System of Measurement Inch

Screw Size 1/2

Inside Diameter (Decimal Inch) 0.5050

Outside Diameter (Inch) 3/4

Thickness (Decimal Inch) 0.0620

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$47.53

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164944
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #10 ; Inside Diameter (Decimal Inch): 0.1940 ; Outside Diameter (Inch): 3/8 ; Thickness (Decimal Inch): 0.0620

Type Standard

System of Measurement Inch

Screw Size #10

Inside Diameter (Decimal Inch) 0.1940

Outside Diameter (Inch) 3/8

Thickness (Decimal Inch) 0.0620

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$39.38

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11165040
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #10 ; Inside Diameter (Decimal Inch): 0.2000 ; Outside Diameter (Decimal Inch): 0.4500 ; Thickness (Decimal Inch): 0.0480

Type Standard

System of Measurement Inch

Screw Size #10

Inside Diameter (Decimal Inch) 0.2000

Outside Diameter (Decimal Inch) 0.4500

Thickness (Decimal Inch) 0.0480

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$44.26

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164928
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 1/4 ; Inside Diameter (Decimal Inch): 0.2520 ; Outside Diameter (Decimal Inch): 0.4720 ; Thickness (Decimal Inch): 0.0590

Type Standard

System of Measurement Inch

Screw Size 1/4

Inside Diameter (Decimal Inch) 0.2520

Outside Diameter (Decimal Inch) 0.4720

Thickness (Decimal Inch) 0.0590

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$47.53

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11165073
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #4 ; Inside Diameter (Decimal Inch): 0.1150 ; Outside Diameter (Inch): 1/4 ; Thickness (Decimal Inch): 0.0320

Type Standard

System of Measurement Inch

Screw Size #4

Inside Diameter (Decimal Inch) 0.1150

Outside Diameter (Inch) 1/4

Thickness (Decimal Inch) 0.0320

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$27.85

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11165016
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 1/4 ; Inside Diameter (Decimal Inch): 0.2600 ; Outside Diameter (Decimal Inch): 0.6870 ; Thickness (Decimal Inch): 0.0600

Type Standard

System of Measurement Inch

Screw Size 1/4

Inside Diameter (Decimal Inch) 0.2600

Outside Diameter (Decimal Inch) 0.6870

Thickness (Decimal Inch) 0.0600

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$57.37

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164977
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 5/16 ; Inside Diameter (Decimal Inch): 0.3170 ; Outside Diameter (Inch): 1/2 ; Thickness (Decimal Inch): 0.0320

Type Standard

System of Measurement Inch

Screw Size 5/16

Inside Diameter (Decimal Inch) 0.3170

Outside Diameter (Inch) 1/2

Thickness (Decimal Inch) 0.0320

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$34.45

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11165008
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #4 ; Inside Diameter (Decimal Inch): 0.1150 ; Outside Diameter (Inch): 1/4 ; Thickness (Decimal Inch): 0.0620

Type Standard

System of Measurement Inch

Screw Size #4

Inside Diameter (Decimal Inch) 0.1150

Outside Diameter (Inch) 1/4

Thickness (Decimal Inch) 0.0620

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$31.14

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164969
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #6 ; Inside Diameter (Decimal Inch): 0.1560 ; Outside Diameter (Decimal Inch): 0.3200 ; Thickness (Decimal Inch): 0.0310

Type Standard

System of Measurement Inch

Screw Size #6

Inside Diameter (Decimal Inch) 0.1560

Outside Diameter (Decimal Inch) 0.3200

Thickness (Decimal Inch) 0.0310

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$42.62

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164902
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 1/4 ; Inside Diameter (Decimal Inch): 0.2570 ; Outside Diameter (Inch): 1/2 ; Thickness (Decimal Inch): 0.0320

Type Standard

System of Measurement Inch

Screw Size 1/4

Inside Diameter (Decimal Inch) 0.2570

Outside Diameter (Inch) 1/2

Thickness (Decimal Inch) 0.0320

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$40.96

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11165081
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: #10 ; Inside Diameter (Decimal Inch): 0.1940 ; Outside Diameter (Inch): 3/8 ; Thickness (Inch): 1/8

Type Standard

System of Measurement Inch

Screw Size #10

Inside Diameter (Decimal Inch) 0.1940

Outside Diameter (Inch) 3/8

Thickness (Inch) 1/8

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$44.31

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164894
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 1/2 ; Inside Diameter (Decimal Inch): 0.5050 ; Outside Diameter (Inch): 3/4 ; Thickness (Inch): 1/8

Type Standard

System of Measurement Inch

Screw Size 1/2

Inside Diameter (Decimal Inch) 0.5050

Outside Diameter (Inch) 3/4

Thickness (Inch) 1/8

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$54.08

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11164985
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 3/8 ; Inside Diameter (Decimal Inch): 0.3800 ; Outside Diameter (Inch): 5/8 ; Thickness (Inch): 1/8

Type Standard

System of Measurement Inch

Screw Size 3/8

Inside Diameter (Decimal Inch) 0.3800

Outside Diameter (Inch) 5/8

Thickness (Inch) 1/8

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$52.48

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Made in USA - Flat Washers Type: Standard System of Measurement: Inch

Item #: 11165024
Brand: Made in USA
Exact Tooling IR#: 04

Features and Benefits

Flat washers are standard washers used for general-purpose fastening. They are placed under the head of a bolt or above a nut to distribute clamping force and prevent fasteners from pulling through materials.

Nylon is a lightweight, nonconductive material that is resistant to impact, wear and abrasion. It is ideal for electrical applications or where corrosion is a concern.

Product Specifications

Flat Washers; Type: Standard ; System of Measurement: Inch ; Screw Size: 3/8 ; Inside Diameter (Decimal Inch): 0.3800 ; Outside Diameter (Inch): 5/8 ; Thickness (Decimal Inch): 0.0620

Type Standard

System of Measurement Inch

Screw Size 3/8

Inside Diameter (Decimal Inch) 0.3800

Outside Diameter (Inch) 5/8

Thickness (Decimal Inch) 0.0620

Material Grade 6/6

Material Nylon

Finish/Coating Plain

Fastener Standard ASME B18.21.1

$42.62

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Type	High-Temperature
System of Measurement	Inch
Screw Size	1/2
Inside Diameter (Inch)	9/16
Outside Diameter (Inch)	1-3/8
Thickness (Decimal Inch)	0.0200
Material Grade	A286
Material	Stainless Steel
Finish/Coating	Plain
Fastener Standard	ASME B18.2.1
Minimum Thickness (Decimal Inch)	0.0860
Maximum Thickness (Decimal Inch)	0.1320

Type	Standard
System of Measurement	Inch
Screw Size	#10
Inside Diameter (Decimal Inch)	0.1940
Outside Diameter (Inch)	3/8
Thickness (Decimal Inch)	0.0320
Material Grade	6/6
Material	Nylon
Finish/Coating	Plain
Fastener Standard	ASME B18.21.1