Minerallac Company 55273 - 5/16-18 x 4-1/2" Hex Head Cap Screw, Grade 5, Partial Threaded, Zinc Plated, Box
Minerallac Company

55273

UPC: 085937552730


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Minimum Qty: 50

Multiplier: 50

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Overview

The Minerallac 55273 is a 5/16-18 x 4-1/2" Grade 5 hex head cap screw designed for heavy-duty industrial applications requiring reliable, high-strength fastening. Manufactured from medium carbon steel and quenched/tempered for enhanced durability, this partial-threaded screw features a zinc-plated finish for corrosion resistance. With a hex head width of 1/2" and head height of 13/64", it meets Grade 5 specifications for tensile strength and shear resistance. The coarse thread design ensures easy installation and secure fastening in machinery, equipment, and structural assemblies. RoHS compliant and produced in Taiwan, this screw is ideal for applications where consistent performance and long-term reliability are critical. Standard packaging includes 100 screws per box, with master cartons of 600 units for bulk orders.
  • Grade 5 medium carbon steel with quenched/tempered treatment for high tensile strength
  • 5/16-18 x 4-1/2" dimensions with partial threading for precise fastening
  • Zinc-plated finish for corrosion resistance in industrial environments
  • Hex head width: 1/2", head height: 13/64" for secure wrench engagement
  • RoHS compliant; manufactured in Taiwan

Specifications

Material
Zinc Plated Steel
Size
5/16-18 x 4-1/2"
5/8-11 x 16 Hex Hd Bolt 18-8 Stainless Steel u/m 100

SBH99

5/8-11 x 16 Hex Hd Bolt 18-8 Stainless Steel u/m 100
Bolt, Hex Head Cap, Size 3/8 x 1 Inches, Steel

E142 3/8 1

Bolt, Hex Head Cap, Size 3/8 x 1 Inches, Steel
5/16-18 X 3 HHTB 316SS

74350SS316J

5/16-18 X 3 HHTB 316SS

Frequently Asked Questions

What material is the 55273 screw made from?

The screw is made from Grade 5 medium carbon steel, quenched and tempered for enhanced strength and durability.

What is the head width and height of this screw?

The hex head has a width of 1/2" and a height of 13/64".

Is this screw corrosion-resistant?

Yes, the screw features a zinc-plated finish for corrosion resistance in industrial environments.

What is the thread type and size?

The screw has a coarse thread with a size of 18 threads per inch (5/16-18).

Is the 55273 RoHS compliant?

Yes, the screw is RoHS compliant and does not contain restricted substances.

What are the standard packaging quantities?

The standard packaging includes 100 screws per box, with master cartons containing 600 screws.

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.