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Minerallac Company 55072 - Hex tap bolt for use in drilled and tapped holes threaded full length. It is made of steel with a zinc plated finish. The bolt is 4.500 in long and sized 1/4 in-20 x 4-1/2 in, with a 0.250 in diameter and hex head.
Minerallac Company

55072

Alternate Item Number: 12114282

UPC: 085937550729

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Minimum Qty: 50

Multiplier: 50

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Overview

The Minerallac Company 55072 is a 1/4-20 x 4.5-inch hex bolt made in the USA from low carbon steel. It features a zinc-plated finish for corrosion resistance in outdoor or moist environments. Designed for medium-duty applications, this bolt meets Grade 5 specifications with quenched and tempered steel for reliable load-bearing capacity. The fully threaded design and hex head allow secure wrench or socket engagement for consistent torque. Ideal for structural assemblies, machinery mounting, and general construction in electrical, HVAC, and mechanical systems.
  • 1/4-20 thread pitch with 4.5-inch length
  • Low carbon steel with zinc-plated finish for corrosion resistance
  • Grade 5 specification, quenched and tempered for durability
  • Fully threaded design with hex head for secure wrench engagement
  • Made in the USA for reliable industrial applications
  • Made in USA for consistent quality and traceability

Specifications

Application
To be used in drilled and tapped holes which are threaded full length.
Diameter
0.25 in
Diameter
6.35 mm
Finish
Zinc Plated
Head Type
Hex
Length
4.5 in
Length
114.3 mm
Material
Steel
Size
1/4"–20 x 4-1/2"
Thread
20 TPI
Type
Hex Tap Bolt
This is a hex tap bolt for use in drilled and tapped holes threaded full length. It is made of steel with a zinc plated finish. The bolt is 4.500 in long and sized 5/16-18 x 4-1/2 in, with a 0.313 in diameter and 18 threads per inch.

55272

This is a hex tap bolt for use in drilled and tapped holes threaded full length. It is made of steel with a zinc plated finish. The bolt is 4.500 in long and sized 5/16-18 x 4-1/2 in, with a 0.313 in diameter and 18 threads per inch.
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Hex head cap screw designed for easy assembly into a tapped hole. It is made of silicon bronze with a copper-colored head finish. The screw size is 5/16-18 x 3/4 in, with a 1/2 in head width and 13/64 in head height.

54212

Hex head cap screw designed for easy assembly into a tapped hole. It is made of silicon bronze with a copper-colored head finish. The screw size is 5/16-18 x 3/4 in, with a 1/2 in head width and 13/64 in head height.
Hex head cap screw with a 3/8-16 coarse thread size and 3/4 in length. Made of Grade 5 steel and zinc plated with a silver head color. The sheet notes it is fully threaded and has a hex head.

55413

Hex head cap screw with a 3/8-16 coarse thread size and 3/4 in length. Made of Grade 5 steel and zinc plated with a silver head color. The sheet notes it is fully threaded and has a hex head.
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.

55221

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.
This is a hex cap bolt / hex head cap screw sized 1/4"-20 x 3". It is made of Grade 5 steel and has a zinc plated finish. The head is hex head with a 7/16" width and 5/32" height, and the thread type is coarse.

55049

This is a hex cap bolt / hex head cap screw sized 1/4"-20 x 3". It is made of Grade 5 steel and has a zinc plated finish. The head is hex head with a 7/16" width and 5/32" height, and the thread type is coarse.
A hex tap bolt for use in drilled and tapped holes threaded full length. It is made of steel with a zinc plated finish. The bolt is 5.000 inches long, size 1/4"-20 x 5", with a 0.250 inch diameter and 20 threads.

55080

A hex tap bolt for use in drilled and tapped holes threaded full length. It is made of steel with a zinc plated finish. The bolt is 5.000 inches long, size 1/4"-20 x 5", with a 0.250 inch diameter and 20 threads.

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.