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NSI Industries JG8WW81 - USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 7/8 in. outside diameter, 3/8 in. inside diameter, 5/16 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.
NSI Industries

JG8WW81

Alternate Item Number: 80531

UPC: 639720805314

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSI Industries USS Flat Washer (SKU: JG8WW81) is a hardened steel washer designed for heavy-duty fastening in industrial applications. Constructed from hardened steel, this washer delivers superior strength and resistance to deformation under high torque and load conditions. The zinc chromate finish provides corrosion resistance, ensuring long-term reliability in outdoor or chemically exposed environments. With a 7/8-inch outside diameter and a 3/8-inch inside diameter, the washer accommodates bolt sizes up to 5/16 inches. It is specifically engineered for use with Grade 5 and Grade 8 bolts and nuts, making it suitable for high-strength fastening applications in construction, manufacturing, and mechanical assemblies. The washer’s hardened steel composition ensures consistent performance under stress, reducing the risk of loosening or failure in critical joints. Packaged in quantities of 100, the JG8WW81 offers cost-effective bulk purchasing for large projects or inventory stocking. Its compatibility with standard industrial fasteners and durable construction make it a reliable choice for professionals requiring precision-engineered washers for demanding applications.
  • Hardened steel construction for high-strength applications
  • Zinc chromate finish provides corrosion resistance
  • 7/8" outside diameter, 3/8" inside diameter
  • Compatible with Grade 5 and Grade 8 bolts and nuts
  • 100 washers per pack for bulk purchasing

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Finish
Zink Chromate
Fits Bolt Sizes
5/16 IN
Inside Diameter
3/8 IN
Material
Hardened Steel
Material Quality
Hardened Steel
Outside Diameter
0.875 in
Size
7/8 in. OD, 3/8 in. ID, fits 5/16 in. bolt sizes
Standard
USA
Type
Wrought Washer
Package Dimensions (L x W x H)
3 IN x 3 IN x 2.15 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 5.461 cm
Package Weight (Imperial)
0.590 L
Package Weight (Metric)
0.268 kg
USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 1 in. outside diameter, 7/16 in. inside diameter, 3/8 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.

JG8WW82

USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 1 in. outside diameter, 7/16 in. inside diameter, 3/8 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.
Washer, Flat, Size 5/16 Inch, Steel

E147 5/16

Washer, Flat, Size 5/16 Inch, Steel
This is a flat cut washer for use around a bolt or screw, between the fastener bearing surface and the attached part. It is made of steel with a zinc plated finish and is silver in color. The washer is sized for 1/2" bolts and has an inside diameter of 0.531", outside diameter of 1.063", and thickness of 0.094".

40340SAEJ

This is a flat cut washer for use around a bolt or screw, between the fastener bearing surface and the attached part. It is made of steel with a zinc plated finish and is silver in color. The washer is sized for 1/2" bolts and has an inside diameter of 0.531", outside diameter of 1.063", and thickness of 0.094".
USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 2 in. outside diameter, 13/16 in. inside diameter, 3/4 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.

JG8WW85

USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 2 in. outside diameter, 13/16 in. inside diameter, 3/4 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.
USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 2-1/4 in. outside diameter, 15/16 in. inside diameter, 7/8 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.

JG8WW84

USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 2-1/4 in. outside diameter, 15/16 in. inside diameter, 7/8 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.
USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 1-3/4 in. outside diameter, 11/16 in. inside diameter, 5/8 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.

JG8WW86

USS Flat Washer, Hardened Steel material, Zinc Chromate finish, 1-3/4 in. outside diameter, 11/16 in. inside diameter, 5/8 in. fits bolt sizes, 100 per pack. For use with Grade 5 and Grade 8 Bolt and Nut.
5/16 Grade 5 USS Flat Washer, Steel, Zinc, U/M 100

JG5WW81

5/16 Grade 5 USS Flat Washer, Steel, Zinc, U/M 100
Flat Washer, Silicon Bronze material, 1-5/16 in. outside diameter, 21/32 in. inside diameter, 5/8 in. fits bolt sizes, 100 per pack

JSBW58

Flat Washer, Silicon Bronze material, 1-5/16 in. outside diameter, 21/32 in. inside diameter, 5/8 in. fits bolt sizes, 100 per pack

Frequently Asked Questions

What type of fastener is JG8WW81?

It is a USS flat washer.

What product series does JG8WW81 belong to?

This specification sheet applies to USS Flat Washers in the JWWG5 and JG8WW series.

Which grade is associated with JG8WW81?

The document identifies this washer as Grade 8 zinc.

What material finish is listed for this washer?

The washer is listed as zinc.

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