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Minerallac Company 40330US - 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. The washer has a thickness of 0.080 in, an outside diameter of 0.703 in, and an inside diameter of 0.359 in.
Minerallac Company

40330US

Alternate Item Number: 12116930

UPC: 085937946607


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Overview

The Minerallac Company 40330US is a 5/16 inch flat cut washer, manufactured in the USA. This component is a fundamental hardware item, characterized by its thin, flat, circular metal design with a centrally located hole. Washers like the 40330US are designed to distribute the load of a fastener, such as a bolt or screw, across a larger surface area. This helps to prevent damage to the material being fastened and can also serve to prevent loosening due to vibration. The "ZP" designation indicates a Zinc Plated finish, providing a layer of corrosion resistance. This product falls under the UNSPSC code 31161800, which categorizes it as a washer. Its simple yet effective design makes it suitable for a variety of general assembly and fastening applications where load distribution and surface protection are required.
  • 5/16 inch flat cut washer
  • Zinc Plated (ZP) finish for corrosion resistance
  • Manufactured in the USA
  • Distributes fastener load to prevent material damage
  • Helps prevent loosening due to vibration

Specifications

Color
Silver
Finish
Zinc Plated
Fits Bolt Sizes
5/16
Inside Diameter
0.359 in
Material
Metal
Material
Zinc Plated Steel
Material
Steel
Material
Zinc plated
Outside Diameter
0.703 in
Size
5/16"
Size
5/16 Inch
Thickness
0.080 in
Type
Flat Cut Washer
Flat cut washer made of steel with a zinc plated finish. It is sized for 1/4" bolts and has an outside diameter of 0.640" and an inside diameter of 0.296". The washer thickness is 0.080". It is used to improve stress distribution and span large clearance holes in bolt or screw assemblies.

40325-6

Flat cut washer made of steel with a zinc plated finish. It is sized for 1/4" bolts and has an outside diameter of 0.640" and an inside diameter of 0.296". The washer thickness is 0.080". It is used to improve stress distribution and span large clearance holes in bolt or screw assemblies.
Washer, Flat, Size 5/16 Inch, Steel

E147 5/16

Washer, Flat, Size 5/16 Inch, Steel
5/16" Flat Washer SAE Steel Zinc 1000 Pack

SW74M

5/16" Flat Washer SAE Steel Zinc 1000 Pack
Flat cut washer for use around a bolt or screw to improve stress distribution and span large clearance holes. It is made of steel with a zinc plated finish. The washer is sized for 1/4" bolt sizes and has an outside diameter of 0.640" and an inside diameter of 0.296".

40325BFG

Flat cut washer for use around a bolt or screw to improve stress distribution and span large clearance holes. It is made of steel with a zinc plated finish. The washer is sized for 1/4" bolt sizes and has an outside diameter of 0.640" and an inside diameter of 0.296".
Flat cut washer made of steel with a zinc plated finish. It is 0.080" thick with an outside diameter of 0.640" and an inside diameter of 0.296". The washer fits 1/4" bolt sizes and is used to improve stress distribution and span large clearance holes.

40325-2500

Flat cut washer made of steel with a zinc plated finish. It is 0.080" thick with an outside diameter of 0.640" and an inside diameter of 0.296". The washer fits 1/4" bolt sizes and 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 steel with a zinc plated finish and silver color. The washer has a 0.080" thickness, 0.640" outside diameter, and 0.296" inside diameter. Fits 1/4" bolt sizes.

40325-1000

Flat cut washers used to improve stress distribution and span large clearance holes. They are made of steel with a zinc plated finish and silver color. The washer has a 0.080" thickness, 0.640" outside diameter, and 0.296" inside diameter. Fits 1/4" bolt sizes.
A 7/16 inch flat cut washer made from Type 316 stainless steel. It is supplied in a jar. The sheet identifies it as a flat washer product for general fastening use.

70337SS316J

A 7/16 inch flat cut washer made from Type 316 stainless steel. It is supplied in a jar. The sheet identifies it as a flat washer product for general fastening use.
Flat cut washer designed to improve stress distribution and span large clearance holes. It is made of silicon bronze with a bronze finish and copper color. The washer has a thickness of 16, an outside diameter of 3/4", and an inside diameter of 5/16".

42325J

Flat cut washer designed to improve stress distribution and span large clearance holes. It is made of silicon bronze with a bronze finish and copper color. The washer has a thickness of 16, an outside diameter of 3/4", and an inside diameter of 5/16".

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.