Authorized Minerallac Company Distributor
Minerallac Company 40230BFG - Finished hex nuts for use with bolts with a minimum tensile strength equal to or less than 120,000 PSI. They are made of medium carbon steel with a zinc plated finish. The nuts are 5/16 in size, with 18 coarse threads, right-handed thread direction, 0.273 in thickness, and 0.500 in width.
Minerallac Company

40230BFG

Alternate Item Number: 14163604

UPC: 085937034427


Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 3000

Multiplier: 3000

*Contact for lower quantities*

Overview

The Minerallac Company 5/16-18 Grade 5 Hex Nut (SKU: 40230BFG) is a zinc-plated hex nut engineered for high-strength industrial fastening applications. Manufactured in the USA from medium carbon steel, this nut is quenched and tempered to meet Grade 5 specifications, indicated by three hash marks. It is designed to be used with Grade 5 hex head bolts, providing a secure and durable connection in mechanical and structural assemblies where strength and reliability are critical. This hex nut features a 5/16-18 thread size, ensuring compatibility with standard fasteners in the 5/16" diameter range. The zinc plating offers corrosion resistance, making it suitable for indoor and outdoor applications where exposure to moisture or environmental elements is a concern. Ideal for use in construction, machinery, automotive, and industrial equipment, this nut delivers consistent clamping force and long-term performance. Key benefits include: - Quenched and tempered medium carbon steel for superior strength - Zinc plating for corrosion resistance - Compatible with Grade 5 hex head bolts - Manufactured in the USA for reliable quality
  • Size: 5/16-18 thread
  • Material: Medium carbon steel, quenched and tempered (Grade 5)
  • Finish: Zinc-plated for corrosion resistance
  • Indicators: Three hash marks for Grade 5 identification
  • Compatibility: Designed for use with Grade 5 hex head bolts
  • Origin: Manufactured in the USA
  • SKU: 40230BFG

Specifications

Application
000 PSI;For use with bolts with a minimum tensile strength equal to or less than 120
Color
Silver
Finish
Zinc Plated
Grade
Grade 5
Material Of Construction
Medium Carbon Steel
Nut Type
Hex Nut
Nut Type
Other
Nut Type
Finished Hex Nut
Size
5/16"
Thickness
0.273" IN
Thread Direction
Right
Thread Direction
Right-Handed
Thread Size
18 TPI
Thread Type
Coarse
Type
Hex Nut
Width
0.5 in
Width
12.7 mm
Package Weight (Imperial)
52.5 lbs
Finished hex nut with a coarse right-handed thread and Grade 5 rating. It is made of medium carbon steel with a zinc plated finish. The sheet lists a 1/4" size, 20 thread size, 0.226" thickness, and 0.438" width.

40255J

Finished hex nut with a coarse right-handed thread and Grade 5 rating. It is made of medium carbon steel with a zinc plated finish. The sheet lists a 1/4" size, 20 thread size, 0.226" thickness, and 0.438" width.
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 finished hex nut for use with bolts with a minimum tensile strength equal to or less than 150,000 PSI. It is made of stainless steel with a stainless finish and silver color. The nut is sized 3/8-16 in with coarse, right-handed threads and a thickness of 0.337 in.

40235US

A finished hex nut for use with bolts with a minimum tensile strength equal to or less than 150,000 PSI. It is made of stainless steel with a stainless finish and silver color. The nut is sized 3/8-16 in with coarse, right-handed threads and a thickness of 0.337 in.
Finished hex nuts for use with bolts with a minimum tensile strength equal to or less than 120,000 PSI. They are made of medium carbon steel with a zinc plated finish. The nuts are 3/4" size with 10 thread size, coarse thread, right-handed thread direction, and Grade 5. The listed thickness is 0.665" and width is 1.125".

40250US

Finished hex nuts for use with bolts with a minimum tensile strength equal to or less than 120,000 PSI. They are made of medium carbon steel with a zinc plated finish. The nuts are 3/4" size with 10 thread size, coarse thread, right-handed thread direction, and Grade 5. The listed thickness is 0.665" and width is 1.125".
Finished hex nuts with a 3/8" size and 16 coarse threads. Made from medium carbon steel with a zinc plated finish. Grade 5, right-handed thread, and silver color. Thickness is 0.337" and width is 0.562".

40235USJ

Finished hex nuts with a 3/8" size and 16 coarse threads. Made from medium carbon steel with a zinc plated finish. Grade 5, right-handed thread, and silver color. Thickness is 0.337" and width is 0.562".
A 6-32 machine screw nut with a hexagonal nut shape. It is made of brass with a copper color finish. The nut has a right-hand coarse thread, a height of 0.108 in, and a width of 5/16 in.

43105J

A 6-32 machine screw nut with a hexagonal nut shape. It is made of brass with a copper color finish. The nut has a right-hand coarse thread, a height of 0.108 in, and a width of 5/16 in.

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.