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Minerallac Company 55221USJ - Hex cap bolt with a 5/16-18 coarse thread and 1-1/4 in length. It is made of Grade 5 steel and has a zinc plated finish. The head is hex shaped with a 1/2 in width and 13/64 in height.
Minerallac Company

55221USJ

Alternate Item Number: 12115768

UPC: 085937966940


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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company 55221USJ is a Grade 5 hex bolt designed for heavy-duty applications requiring reliable strength and corrosion resistance. Measuring 5/16-18 x 1-1/4 inches, this bolt is manufactured from Grade 5 steel, providing a tensile strength of 120,000 PSI and a proof load of 85,000 PSI for secure load-bearing connections. Its zinc-plated finish offers corrosion protection in indoor and protected outdoor environments, ensuring longevity in moderate exposure conditions. The jar packaging (55221USJ) enables efficient bulk handling and inventory management, ideal for industrial settings where fast access and organization are critical. Common applications include general construction, machinery assembly, equipment mounting, and structural connections where Grade 5 fasteners are specified. Trust Minerallac, a US-based manufacturer, for dependable fastening solutions backed by decades of industry expertise.
  • Grade 5 steel construction for high tensile strength (120,000 PSI) and proof load (85,000 PSI)
  • Zinc-plated finish for corrosion resistance in indoor and protected outdoor environments
  • 5/16-18 x 1-1/4" dimensions for standard heavy-duty fastening applications
  • Jar packaging (55221USJ) for efficient bulk handling and inventory management
  • Manufactured in the USA by Minerallac Company for trusted quality and reliability

Specifications

Finish
Zinc Plated
Head Color
Silver
Head Height
13/64 in
Head Type
Hex Head
Head Width
1/2 in
Length
1-1/4 in
Material
Grade 5 Steel
Material Quality
Grade 5 Steel
Size
5/16-18 x 1-1/4 inches
Size
5/16-18 x 1-1/4"
Special Features
Has three hash marks and is made of medium carbon steel—quenched and tempered.
Thread Size
18 TPI
Thread Type
Coarse
Type
Hex Cap Bolt
Package Weight (Imperial)
3.22 lbs
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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.