Authorized Minerallac Company Distributor
Minerallac Company 55248 - This is a 5/16-18 x 3 inch hex cap bolt with a hex head. It is made of Grade 2 steel and has a zinc plated finish. The bolt is partial threaded and has a coarse thread type.
Minerallac Company

55248

Alternate Item Number: 12114310

UPC: 085937552488


Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Minerallac Company SKU 55248 is a 5/16-18 x 3" fully threaded hex head bolt, manufactured in the USA from medium carbon steel and zinc-plated for corrosion resistance. This Grade 2 bolt features a standard hex head design for compatibility with standard wrenches and sockets, ensuring easy installation and removal in general-purpose fastening applications. The 5/16-18 thread size and 3-inch length provide ample reach for joining materials in construction, maintenance, and manufacturing projects. Zinc plating offers a protective barrier against environmental factors, extending the bolt's lifespan in indoor and outdoor applications. Compatible with Grade 2 hex nuts, this bolt is ideal for moderate-strength fastening where high tensile strength (Grade 5 or Grade 8) is not required. The fully threaded design ensures maximum thread engagement for secure fastening. For applications requiring higher strength, consider Minerallac's Grade 5 or Grade 8 hex head bolts. This product is part of Minerallac's extensive line of fasteners, known for their quality and durability in industrial and commercial projects.
  • Fully threaded 5/16-18 x 3" hex head bolt
  • Zinc-plated finish for corrosion resistance
  • Grade 2 medium carbon steel construction
  • Compatible with standard wrenches and Grade 2 hex nuts
  • Manufactured in the USA for reliability
  • Made in the USA by Minerallac Company

Specifications

Finish
Zinc Plated
Head Color
Silver
Head Height
13/64 in
Head Type
Hex Head
Head Width
1/2 in
Length
3 in
Length
76.2 mm
Material
Grade 2 Steel
Material Quality
Grade 2 Steel
Size
5/16-18 x 3"
Special Features
Made of medium carbon steel—quenched and tempered.
Thread Size
18 TPI
Thread Type
Coarse
Type
Hex Cap Bolt
Package Weight (Imperial)
7.08 lbs
Hex cap bolt made of Grade 2 steel with a zinc plated finish. It is sized 5/16-18 x 3 in. The sheet lists a hex head with 1/2 in head width and 13/64 in head height. Thread type is coarse and the bolt is partial threaded.

55248J

Hex cap bolt made of Grade 2 steel with a zinc plated finish. It is sized 5/16-18 x 3 in. The sheet lists a hex head with 1/2 in head width and 13/64 in head height. Thread type is coarse and the bolt is partial threaded.
Hex Tap Bolt, M10 x 1.5 size, 60 MM length, Right Hand thread, 8.8 grade, Steel, Zinc finish, DIN 933 thread standard, 100 per pack

JMHTB1060

Hex Tap Bolt, M10 x 1.5 size, 60 MM length, Right Hand thread, 8.8 grade, Steel, Zinc finish, DIN 933 thread standard, 100 per pack
Strut Non Metallic Hex Head Bolt 3/8 Inch - 2-1/2 Inch

NM-F38212

Strut Non Metallic Hex Head Bolt 3/8 Inch - 2-1/2 Inch
This is a 3/8-16 x 2 inch hex head cap screw. It is made of Grade 5 steel and has a zinc plated finish. The screw is partial threaded and has a hex head with a silver color.

55433

This is a 3/8-16 x 2 inch hex head cap screw. It is made of Grade 5 steel and has a zinc plated finish. The screw is partial threaded and has a hex head with a silver color.
A hex cap bolt specified as 3/8-16 x 2 inches with a hex head and coarse thread. It is made of Grade 2 steel and has a zinc plated finish. The sheet notes a silver head color and partial threading.

55432

A hex cap bolt specified as 3/8-16 x 2 inches with a hex head and coarse thread. It is made of Grade 2 steel and has a zinc plated finish. The sheet notes a silver head color and partial threading.
This is a 1/2-13 x 1 inch hex head cap screw. It is made of Grade 5 steel and has a zinc plated finish. The screw is fully threaded and has a coarse thread type. The head is hex head with a 3/4 inch width and 5/16 inch height.

55817

This is a 1/2-13 x 1 inch hex head cap screw. It is made of Grade 5 steel and has a zinc plated finish. The screw is fully threaded and has a coarse thread type. The head is hex head with a 3/4 inch width and 5/16 inch height.
Hex cap bolt with a 3/8-16 x 1-1/2 in. size and hex head. It is made of Grade 5 steel and has a zinc plated finish. The bolt is partial threaded and has a silver head color.

55425

Hex cap bolt with a 3/8-16 x 1-1/2 in. size and hex head. It is made of Grade 5 steel and has a zinc plated finish. The bolt is partial threaded and has a silver head color.
A hex cap bolt sized 3/8-16 x 3 inches. It is made of Grade 2 steel with a zinc plated finish and a hex head. The sheet notes it is partial threaded and made of medium carbon steel that is quenched and tempered.

55448

A hex cap bolt sized 3/8-16 x 3 inches. It is made of Grade 2 steel with a zinc plated finish and a hex head. The sheet notes it is partial threaded and made of medium carbon steel that is quenched and tempered.

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.