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Minerallac Company 40340USJ - Flat cut washer for use with bolts or screws, designed to improve stress distribution and span large clearance holes. It is made of steel with a zinc plated finish and is described as medium carbon, domestic, and thru-hardened for Grade 5 and Grade 8 applications. The washer fits 1/2" bolt sizes and has an outside diameter of 1.375", inside diameter of 0.546", and thickness of 0.121".
Minerallac Company

40340USJ

Alternate Item Number: 14917232

UPC: 085937055545


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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company 40340USJ is a 1/2 inch flat washer constructed from durable zinc-plated steel. Manufactured in the USA, these washers are engineered for industrial applications requiring secure fastening and effective load distribution. The zinc plating provides essential corrosion resistance, ensuring longevity and performance in various environmental conditions. These washers are a fundamental component in machinery assembly, construction projects, and automotive manufacturing. By properly seating fasteners, they prevent damage to surfaces and ensure the integrity of connections. The 1/2" size is a common specification for many industrial fasteners. Trust Minerallac Company for essential, reliably manufactured industrial fasteners that contribute to the stability and durability of your projects. SKU 40340USJ.
  • 1/2 inch size for common industrial fasteners
  • Zinc-plated steel construction for corrosion resistance
  • Manufactured in the USA for reliable quality
  • Distributes load to prevent surface damage
  • Ensures secure fastener seating in machinery and construction

Specifications

Application
between the bearing surface of the fastener and the part to which it is attached.;Washers are designed for assembly around a bolt or screw
Color
Silver
Finish
Zinc Plated
Fits Bolt Sizes
1/2 IN
Inside Diameter
0.546 in
Inside Diameter
13.8684 mm
Material
Zinc-Plated Steel
Material
Steel
Outside Diameter
1.375 in
Outside Diameter
34.925 mm
Size
1/2 Inch
Size
1/2"
Special Features
and to span large clearance holes.;Flat washers are used to improve stress distribution
Thickness
0.121 in
Thickness
3.0734 mm
Type
Flat Cut Washer
Flat cut washer used to improve stress distribution and span large clearance holes. It is made of steel with a zinc plated finish and is silver in color. The washer fits 1/2" bolt sizes and has a thickness of 0.121" with an inside diameter of 0.546".

40340HG

Flat cut washer used to improve stress distribution and span large clearance holes. It is made of steel with a zinc plated finish and is silver in color. The washer fits 1/2" bolt sizes and has a thickness of 0.121" with an inside diameter of 0.546".
Washer, Flat, Size 5/16 Inch, Steel

E147 5/16

Washer, Flat, Size 5/16 Inch, Steel
3/8" Flat SAE Washer Steel Zinc

JSW75M

3/8" Flat SAE Washer Steel Zinc
This is a flat cut washer for use around a bolt or screw between the bearing surface of the fastener and the part being attached. It is made of steel with a zinc plated finish. The washer is sized for 5/8" bolt sizes and has a thickness of 0.145", an outside diameter of 1.750", and an inside diameter of 0.688".

40345USJ

This is a flat cut washer for use around a bolt or screw between the bearing surface of the fastener and the part being attached. It is made of steel with a zinc plated finish. The washer is sized for 5/8" bolt sizes and has a thickness of 0.145", an outside diameter of 1.750", and an inside diameter of 0.688".
Flat cut washer for use with 1/4" bolt sizes. It is made of steel with a zinc plated finish and is described as medium carbon, domestic, and thru-hardened for Grade 5 and Grade 8 applications. The washer has an outside diameter of 0.640", an inside diameter of 0.296", and a thickness of 0.080".

40325USJ

Flat cut washer for use with 1/4" bolt sizes. It is made of steel with a zinc plated finish and is described as medium carbon, domestic, and thru-hardened for Grade 5 and Grade 8 applications. The washer has an outside diameter of 0.640", an inside diameter of 0.296", and a thickness of 0.080".
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.

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.
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.

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.