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Minerallac Company 70340USAJ - This is a 1/2 inch flat cut washer made of 18-8 stainless steel with a stainless finish. It is designed for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it is attached. The washer is used to improve stress distribution and span large clearance holes.

Minerallac Company 70340USAJ This is a 1/2 inch flat cut washer made of 18-8 stainless steel with a stainless finish.…

Alternate Item Number: 15579363

UPC: 085937060570


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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Minerallac Company SKU 70340USAJ is a 1/2 inch flat cut washer. This washer is constructed from 18-8 stainless steel. The primary function of this washer is to distribute the load of a fastener over a larger surface area, thereby preventing damage to the underlying material and ensuring a secure connection. Its robust construction makes it suitable for a wide range of industrial and commercial applications. The 18-8 stainless steel material offers superior resistance to corrosion, making it an excellent choice for environments exposed to moisture, outdoor elements, or chemical processing. Each unit is conveniently supplied in a jar, facilitating easy storage and retrieval. This washer is specifically designed for compatibility with 1/2 inch fasteners. It serves as a dependable component for preserving the structural integrity of assemblies, particularly in situations involving high mechanical stress or corrosive conditions. Typical applications where this washer proves beneficial include HVAC systems, electrical enclosures, and various mechanical assemblies where effective load distribution and resistance to corrosion are paramount requirements.
  • 1/2 inch flat cut washer for 1/2 inch fasteners
  • Made from 18-8 stainless steel for corrosion resistance
  • Distributes fastener load to prevent surface damage
  • Supplied in a jar for convenient storage and access
  • Ideal for outdoor and chemical processing environments

Specifications

Application
Washers are designed for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it is attached.
Compliance
Melted and Manufactured in the United States
Finish
Stainless
Fits Bolt Sizes
1/2" IN
Inside Diameter
.526/.541
Material
18-8 Stainless Steel
Outside Diameter
1.24l/1.265
Rockwell Hardness
n/a Parts are free from any mercury contamination
Size
1/2"
Special Features
Flat washers are used to improve stress distribution, and to span large clearance holes.
Standard
ASTM240
Thickness
.054/.066
Type
Flat Cut Washer
This is a flat cut washer for assembly around a bolt or screw between the fastener and the attached part. It is made of 18-8 stainless steel with a stainless finish. The washer has a 0.812 inch inside diameter, 2.000 inch outside diameter, and 0.148 inch thickness.

70350

This is a flat cut washer for assembly around a bolt or screw between the fastener and the attached part. It is made of 18-8 stainless steel with a stainless finish. The washer has a 0.812 inch inside diameter, 2.000 inch outside diameter, and 0.148 inch thickness.
5/16" USS Flat Washer 18-8 Stainless Steel

JWW81SS

5/16" USS Flat Washer 18-8 Stainless Steel
Washer, Flat, Size 1/4 Inch, Type 304 Stainless Steel

E147-1/4SS

Washer, Flat, Size 1/4 Inch, Type 304 Stainless Steel
Flat cut washers used to improve stress distribution and span large clearance holes. They are made of 18-8 stainless steel and are silver in color. The washer fits #6 bolt sizes and has an outside diameter of 0.390 inch, an inside diameter of 0.164 inch, and a nominal thickness of 0.065 inch.

70305J

Flat cut washers used to improve stress distribution and span large clearance holes. They are made of 18-8 stainless steel and are silver in color. The washer fits #6 bolt sizes and has an outside diameter of 0.390 inch, an inside diameter of 0.164 inch, and a nominal thickness of 0.065 inch.
3/4 inch flat cut washers supplied in a jar. They are made of silicon bronze. The sheet identifies them as catalog number 42350J.

42350J

3/4 inch flat cut washers supplied in a jar. They are made of silicon bronze. The sheet identifies them as catalog number 42350J.
Insulation Piercing Washer, Outer Diameter 31.8mm (1.25 Inches), Inner Diameter 14.2mm (0.56 Inch), Stud Size 1/2 Inch, Copper Alloy, Tin Plated

FPW12

Insulation Piercing Washer, Outer Diameter 31.8mm (1.25 Inches), Inner Diameter 14.2mm (0.56 Inch), Stud Size 1/2 Inch, Copper Alloy, Tin Plated
Insulation Piercing Washer, Outer Diameter 17.3mm (0.68 Inch), Inner Diameter 6.9mm (0.27 Inch), Stud Size 1/4 Inch, Copper Alloy, Tin Plated

FPW14

Insulation Piercing Washer, Outer Diameter 17.3mm (0.68 Inch), Inner Diameter 6.9mm (0.27 Inch), Stud Size 1/4 Inch, Copper Alloy, Tin Plated
Insulation Piercing Washer, Outer Diameter 25.4mm (1.0 Inch), Inner Diameter 10.9mm (0.43 Inch), Stud Size 3/8 Inch, Copper Alloy, Tin Plated

FPW38

Insulation Piercing Washer, Outer Diameter 25.4mm (1.0 Inch), Inner Diameter 10.9mm (0.43 Inch), Stud Size 3/8 Inch, Copper Alloy, Tin Plated

Frequently Asked Questions

What material is the 70340USAJ flat cut washer made of?

The 70340USAJ flat cut washer is made of 18-8 Stainless Steel.

What are the dimensions of the 70340USAJ flat cut washer?

The washer has a thickness of .054/.066, an outside diameter of 1.24l/1.265, and an inside diameter of .526/.541.

What bolt size is compatible with the 70340USAJ flat cut washer?

This flat cut washer is designed to fit 1/2" bolt sizes.

What is the purpose of a flat cut washer like the 70340USAJ?

Flat washers are used to improve stress distribution and to span large clearance holes during assembly.

Where is the 70340USAJ flat cut washer manufactured?

The 70340USAJ flat cut washer is melted and manufactured in the United States.

Is the 70340USAJ flat cut washer compliant with the Buy America Act?

Yes, the 70340USAJ flat cut washer is Buy America Act compliant.

Does the 70340USAJ flat cut washer contain mercury?

No, the parts are free from any mercury contamination.

Is the 70340USAJ flat cut washer compliant with Proposition 65?

This product is in compliance with Prop65 and is not known to contain any associated chemicals.

What is the standard quantity for the 70340USAJ flat cut washer?

The standard quantity for this item is 100 units per jar.

What is the finish of the 70340USAJ flat cut washer?

The finish of the 70340USAJ flat cut washer is stainless.

Frequently Asked Questions about Minerallac Company

What are the main product lines offered by Minerallac Company?

Minerallac Company offers multiple comprehensive product lines including Minerallac Traditional (electrical fasteners), Strut Fittings, Stainless Steel Fasteners, Black Claw, Impact Staples, and Redmore. Their Traditional line features over a thousand electrical fastener variations covering conduit/cable/wire products, nail straps, beam clamps, metal stud & drywall accessories, acoustical supports, voice/data hardware, and miscellaneous electrical installation components.

What is Minerallac Company's warranty policy?

Minerallac Company provides a limited warranty that guarantees all products are free from defects in material and workmanship. If a product fails to meet this warranty, Minerallac's sole liability is to replace the product at no charge. The warranty is exclusive and does not cover consequential damages, lost profits, or implied warranties of merchantability or fitness for a particular purpose.

What industries and applications are Minerallac Company products used for?

Minerallac Company products are used extensively across electrical, construction, and industrial applications, including conduit and cable support, beam mounting, metal stud and drywall installation, voice/data infrastructure, and low voltage systems. Their product lines cover critical fastening solutions for electrical contractors, with specialized offerings in conduit hangers, straps, beam clamps, cable supports, and mounting hardware for various industrial environments.

What technical support does Minerallac Company offer?

Minerallac Company offers comprehensive technical support through multiple channels, including a toll-free customer service line at 800-927-3293, email support at [email protected], and online resources at www.minerallac.com. Their support covers product selection, technical specifications, and customer service for their extensive line of electrical fasteners, hangers, straps, and hardware across multiple product brands including Minerallac Traditional, Cully, Black Claw, IMPACT Staples, and Minerallac Stainless Steel. Support hours are 8:00 A.M. to 5:00 P.M. CT for their corporate office and 8:00 A.M. to 5:00 P.M. PT for their regional office.

What are the key features of Minerallac Company products?

Minerallac Company products feature a comprehensive range of electrical fasteners and hardware with exceptional versatility, including over 1,000 different sizes, styles, and finishes. Key features include multiple product lines such as Traditional, Strut Fittings, and Stainless Steel options with specialized finishes like 304/316 Stainless Steel, Hot-Dipped Galvanized, and Zinc Electroplate. Their products are engineered for electrical contractors, offering time-saving solutions with high-quality fasteners designed for durability, corrosion resistance, and worker safety across various installation environments.

What environmental ratings do Minerallac Company products have?

Minerallac Company products have robust environmental ratings, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13 certifications, CSA Type 1-4X, 12, and 13 ratings, and IEC 60529 IP66 protection. The products are WEEE and RoHS compliant, with UV and oil resistance, and can operate in extreme temperatures ranging from -55°C to 105°C, making them suitable for harsh industrial environments.

What accessories are available for Minerallac Company products?

Minerallac Company offers a comprehensive range of accessories across multiple product categories, including hardware, fasteners, and mounting solutions. Key accessories include stove bolts with nuts, wing nut washers, bar joist washers, stud clip adapters, brackets, perforated strapping, cable support options like J-hooks and bridle rings, box mounting brackets, outlet retainers, and various stud and drywall supports. Their accessories are available in multiple finishes such as stainless steel, hot-dipped galvanized, zinc electroplate, and powder-coated options.

How are Minerallac Company products typically installed?

Minerallac Company products are typically installed using a variety of specialized fastening solutions, including conduit hangers, straps, beam clamps, and mounting brackets designed for different electrical and construction applications. Installation methods vary by product type, with options for metal studs, drywall, beams, acoustical surfaces, and low voltage systems. The company offers multiple installation styles such as one-hole and two-hole straps, universal beam clamps, and specific mounting hardware to ensure secure and efficient attachment across diverse electrical and construction environments.

What communication protocols do Minerallac Company products support?

Minerallac Company's Brad product line supports multiple industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, Serial, AS-interface, and CC-Link. Their comprehensive portfolio covers over 40 industrial protocols, providing flexible communication solutions for various industrial automation applications from PC-based control to PLC systems.