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Minerallac Company 40481 - This is a serrated hex flange lock nut with a 5/16 in size and 18 TPI coarse, right-handed threads. It is made of steel with a zinc plated finish and has a silver color. The flange design provides a larger bearing surface and is intended to resist loosening and span oversized or poorly aligned holes.
Minerallac Company

40481

Alternate Item Number: 12113973

UPC: 085937404817


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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company 5/16-18 Serrated Flange Hex Nut, SKU 40481, is a zinc-plated steel fastener designed for secure connections in industrial applications. This machine-threaded hex nut features a serrated flange that actively prevents loosening under vibration and torque, ensuring the integrity of mechanical and structural assemblies. The 5/16-18 thread size ensures broad compatibility with standard bolts and threaded rods. Manufactured in the USA, Minerallac Company is recognized for its reliable industrial fastening solutions. The zinc plating provides a layer of corrosion resistance suitable for many environments. This nut is an effective choice for applications where maintaining a tight and stable joint is paramount, such as in equipment assembly and construction projects. Its design leverages the mechanical advantage of a flange to distribute load more evenly, further enhancing connection stability. This product falls under UNSPSC code 31161700.
  • 5/16-18 thread size for broad compatibility
  • Serrated flange prevents loosening from vibration and torque
  • Zinc-plated steel construction for corrosion resistance
  • Machine-threaded for reliable engagement
  • Manufactured in the USA by Minerallac Company

Specifications

Application
Flange provides a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts.
Color
Silver
Finish
Zinc Plated
Material of Construction
Steel
Nut Type
Lock Nut
Rockwell Hardness
Rockwell HR15N 78 – 90
Size
5/16" IN
Special Features
Requires a greater amount of torque to loosen than to tighten the nut. Will span oversized or poorly aligned holes. Does not gall screw threads.
Thickness
0.283" IN
Thread Direction
Right-Handed
Thread Size
18 TPI
Thread Type
Coarse
Type
Serrated Hex Flange Nut
Width
0.500" IN
A serrated hex flange lock nut with a 1/4-20 coarse right-handed thread. It is made of steel with a zinc plated finish and has an enlarged flange base with serrations to resist loosening. The nut is silver in color and is intended to provide a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts.

40480

A serrated hex flange lock nut with a 1/4-20 coarse right-handed thread. It is made of steel with a zinc plated finish and has an enlarged flange base with serrations to resist loosening. The nut is silver in color and is intended to provide a more uniform bearing-stress to clamp-force ratio than other low carbon lock nuts.
3/8-16 Hex Nut Hardened Steel, Grade 5, USA Made, Zinc, U/M 100

JG5N165D

3/8-16 Hex Nut Hardened Steel, Grade 5, USA Made, Zinc, U/M 100
Nut, Hex Heavy, Size 1/4 Inch-20, Steel

H 114 A

Nut, Hex Heavy, Size 1/4 Inch-20, Steel
Nut, Steel, ERNI MiniBridge

394905-E

Nut, Steel, ERNI MiniBridge
A serrated hex flange lock nut with a 1/2" size and 13 coarse threads. It is made of steel with a zinc plated finish and silver color. The nut has a thickness of 0.458" and a width of 0.750". It is designed to resist loosening and to span oversized or poorly aligned holes.

40483

A serrated hex flange lock nut with a 1/2" size and 13 coarse threads. It is made of steel with a zinc plated finish and silver color. The nut has a thickness of 0.458" and a width of 0.750". It is designed to resist loosening and to span oversized or poorly aligned holes.
A six-sided internally threaded fastener with flat tops and chamfered corners. It is made of steel with a zinc plated finish. The nut is size #4 with 40 TPI coarse right-hand threads and measures 0.093 in high by 0.250 in wide.

40103

A six-sided internally threaded fastener with flat tops and chamfered corners. It is made of steel with a zinc plated finish. The nut is size #4 with 40 TPI coarse right-hand threads and measures 0.093 in high by 0.250 in wide.
A six-sided internally threaded hexagonal nut designed for use with machine screws. It is made of steel with a zinc plated finish. The nut is size 1/4 with 28 TPI coarse right-hand threads, and measures 0.186 in high by 0.437 in wide.

40126

A six-sided internally threaded hexagonal nut designed for use with machine screws. It is made of steel with a zinc plated finish. The nut is size 1/4 with 28 TPI coarse right-hand threads, and measures 0.186 in high by 0.437 in wide.
A six-sided internally threaded hexagonal nut designed for use with machine screws. It is made of steel with a zinc plated finish. The nut is 1/4 size with 20 TPI coarse right-hand threads and measures 0.186 in high by 0.437 in wide.

40125

A six-sided internally threaded hexagonal nut designed for use with machine screws. It is made of steel with a zinc plated finish. The nut is 1/4 size with 20 TPI coarse right-hand threads and measures 0.186 in high by 0.437 in wide.

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.