Authorized NSI Industries Distributor
NSI Industries JSBW8 - Flat Washer, Silicon Bronze material, 7/16 in. outside diameter, 3/16 in. inside diameter, #8 fits bolt sizes, 100 per pack
NSI Industries

JSBW8

Alternate Item Number: 80514

UPC: 639720805147

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Specification Sheet

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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSi Industries JSBW8 Silicon Bronze Flat Washer is a precision-engineered fastener designed for applications requiring corrosion resistance and mechanical strength. Constructed from silicon bronze, this washer resists corrosion in marine, chemical, and outdoor environments better than standard steel washers, preventing galvanic corrosion when paired with dissimilar metals. The JSBW8 features a 7/16-inch outside diameter and 3/16-inch inside diameter, making it compatible with #8 bolt sizes (0.164-inch shank diameter). Each washer distributes load uniformly, reducing stress on mating surfaces and preventing damage to softer materials like wood or plastic. The 100-piece pack ensures you have sufficient stock for maintenance, repairs, or production runs without frequent reordering. Silicon bronze’s tensile strength of approximately 60,000 PSI and yield strength of 30,000 PSI provide reliable performance under vibration and dynamic loads, critical for automotive, construction, and industrial machinery. Unlike zinc-plated washers that degrade in saltwater or humid conditions, silicon bronze maintains integrity, reducing failure risks in critical assemblies. The JSBW8 meets industry standards for dimensional accuracy and material composition, ensuring consistent fitment with #8 fasteners in applications ranging from electrical enclosures to structural connections. NSi Industries, a U.S.-based manufacturer, produces this washer to exacting tolerances, with a UNSPSC code of 31161807 for easy procurement in industrial supply chains.
  • Material: Silicon bronze for superior corrosion resistance in marine, chemical, and outdoor environments
  • Dimensions: 7/16" outside diameter, 3/16" inside diameter, compatible with #8 bolt sizes
  • Load Distribution: Uniform pressure reduces stress on mating surfaces and prevents damage
  • Packaging: 100 washers per pack for bulk applications and reduced reordering
  • Applications: Marine hardware, construction, automotive assemblies, and industrial machinery

Specifications

Application
Metal to Metal
Fits Bolt Sizes
#8
Inside Diameter
3/16 IN
Material
Silicon Bronze
Material Quality
Silicon Bronze
Outside Diameter
0.4375 in
Standard
SAE
Type
Flat 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)
0.130 L
Package Weight (Metric)
0.059 kg
10 Flat Washer Silicon Bronze

JSBW10

10 Flat Washer Silicon Bronze
A flat cut washer for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it is attached. It is made of silicon with a bronze finish. The washer has a thickness of 0.034 in, an outside diameter of 0.375 in, and an inside diameter of 0.177 in.

42310

A flat cut washer for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it is attached. It is made of silicon with a bronze finish. The washer has a thickness of 0.034 in, an outside diameter of 0.375 in, and an inside diameter of 0.177 in.
Bronze Silicone Flat Washer - Size 1/2 Inch

50040FW-C

Bronze Silicone Flat Washer - Size 1/2 Inch
Flat Washer, Silicon Bronze material, 5/8 in. outside diameter, 9/32 in. inside diameter, 1/4 in. fits bolt sizes, 100 per pack

JSBW14

Flat Washer, Silicon Bronze material, 5/8 in. outside diameter, 9/32 in. inside diameter, 1/4 in. fits bolt sizes, 100 per pack
Flat Washer, Silicon Bronze material, 11/16 in. outside diameter, 11/32 in. inside diameter, 5/16 in. fits bolt sizes, 100 per pack

JSBW516

Flat Washer, Silicon Bronze material, 11/16 in. outside diameter, 11/32 in. inside diameter, 5/16 in. fits bolt sizes, 100 per pack
Flat Washer, Silicon Bronze material, 13/16 in. outside diameter, 13/32 in. inside diameter, 3/8 in. fits bolt sizes, 100 per pack

JSBW38

Flat Washer, Silicon Bronze material, 13/16 in. outside diameter, 13/32 in. inside diameter, 3/8 in. fits bolt sizes, 100 per pack
Flat Washer, Silicon Bronze material, 1-1/16 in. outside diameter, 17/32 in. inside diameter, 1/2 in. fits bolt sizes, 100 per pack

JSBW12

Flat Washer, Silicon Bronze material, 1-1/16 in. outside diameter, 17/32 in. inside diameter, 1/2 in. fits bolt sizes, 100 per pack
Flat Washer, Brass material, 5/8 in. outside diameter, 9/32 in. inside diameter, 1/4 in. fits bolt sizes, 100 per pack

JSWBR14

Flat Washer, Brass material, 5/8 in. outside diameter, 9/32 in. inside diameter, 1/4 in. fits bolt sizes, 100 per pack

Frequently Asked Questions

Is the JSBW8 washer RoHS compliant?

Yes, the JSBW8 washer is compliant with the current RoHS European Union Directive.

What materials are used in the JSBW8 washers?

The JSBW8 washers are made of brass and silicon bronze, compliant with RoHS requirements.

What is the minimum copper content in the brass washers?

The minimum copper content in the brass washers is 57%.

What is the maximum alloying elements in the brass washers?

The maximum alloying elements in the brass washers is 5%.

What are the dimensions of the JSBW8 washer?

The dimensions for the JSBW8 washer are ID .174, OD .375, and thickness .031 for brass.

What silicon bronze alloys are used in the JSBW8 washers?

The silicon bronze used includes AISI 651, 656, 655, 661 or UNS C65100, C56500, C65500, C66100.

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