Authorized Minerallac Company Distributor
Minerallac Company 55437 - Hex head cap screw with a 3/8-16 x 2-1/4 in. size and partial threading. It is made of Grade 5 steel and has a zinc plated finish. The screw has a hex head with 9/16 in. head width and 15/64 in. head height.
Minerallac Company

55437

UPC: 085937554376

Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Minerallac 55437 is a Grade 5 hex head cap screw engineered for heavy-duty industrial fastening applications requiring high tensile strength and corrosion resistance. This 3/8-16 x 2-1/4 inch screw features partial threading for precise joint control and a zinc-plated finish that provides superior protection against rust and environmental degradation in outdoor or corrosive environments. Manufactured from medium carbon steel, it undergoes a quenching and tempering process—indicated by three hash marks on the head—to achieve a tensile strength of 120,000 PSI, making it ideal for structural connections, machinery assembly, and equipment mounting where reliability is critical. Designed for compatibility with standard hex tools, the screw has a 9/16-inch head width and 15/64-inch head height for secure wrench engagement. Its coarse 3/8-16 thread ensures easy installation and removal in applications such as metal fabrication, HVAC systems, electrical panels, and construction projects. The product is RoHS compliant and packaged in a 50-piece box with a master carton quantity of 600 units for efficient inventory management. Country of origin is China. Key benefits include high tensile strength for load-bearing applications, corrosion resistance from zinc plating, and precise dimensional control for consistent performance. This screw meets industrial standards for durability and is suitable for use in both indoor and outdoor environments where exposure to moisture or chemicals is a concern.
  • Grade 5 steel with 120,000 PSI tensile strength
  • 3/8-16 x 2-1/4 inch size with partial threading
  • Zinc-plated finish for corrosion resistance
  • 9/16" head width and 15/64" head height
  • RoHS compliant, 50pc box quantity

Specifications

Finish
Zinc Plated
Head Color
Silver
Head Height
15/64 in
Head Type
Hex Head
Head Width
9/16 in
Length
2-1/4 in
Material
Grade 5 Steel
Material Quality
Grade 5 Steel
Size
3/8-16 x 2-1/4"
Special Features
Has three hash marks and is made of medium carbon steel—quenched and tempered.
Thread Size
16 TPI
Thread Type
Coarse
Type
Hex Cap Bolt
Package Dimensions (L x W x H)
7.5 IN x 4.375 IN x 3.25 IN
Package Dimensions (L x W x H)
19.05 cm x 11.1125 cm x 8.255 cm
Package Weight (Imperial)
1.6700 L
Package Weight (Metric)
0.7575 kg
Hex head cap screw with a 3/8-16 x 2-3/4 in size. It is made of Grade 5 steel and has a zinc plated finish. The screw is partially threaded and has a coarse thread with a hex head.

55443

Hex head cap screw with a 3/8-16 x 2-3/4 in size. It is made of Grade 5 steel and has a zinc plated finish. The screw is partially threaded and has a coarse thread with a hex head.
1/4-20 x 2-1/4 Hex Hd Bolt Zinc

JBHC51

1/4-20 x 2-1/4 Hex Hd Bolt Zinc
Screw, Hex Head Cap, Size 1/2 x 2-1/4 Inches, Type 316 Stainless Steel

E142-1/2X225SS6

Screw, Hex Head Cap, Size 1/2 x 2-1/4 Inches, Type 316 Stainless Steel
This is a hex head cap screw sized 3/8-16 x 3-1/4 inches. It is made of Grade 5 steel and has a zinc plated finish. The screw has a hex head and coarse threads, and the sheet notes it is partial threaded.

55451

This is a hex head cap screw sized 3/8-16 x 3-1/4 inches. It is made of Grade 5 steel and has a zinc plated finish. The screw has a hex head and coarse threads, and the sheet notes it is partial threaded.
3/8-16 x 2-1/4" Hex Head Bolt, Grade 2, Partial Threaded, Zinc Plated, Box

55436

3/8-16 x 2-1/4" Hex Head Bolt, Grade 2, Partial Threaded, Zinc Plated, Box
3/8-16 x 3-3/4" Hex Head Cap Screw, Grade 5, Partial Threaded, Zinc plated, Box

55461

3/8-16 x 3-3/4" Hex Head Cap Screw, Grade 5, Partial Threaded, Zinc plated, Box
3/8-16 x 3-1/2" Hex Head Tap Bolt, Grade 2, Fully Threaded, Zinc Plated, Box

55455

3/8-16 x 3-1/2" Hex Head Tap Bolt, Grade 2, Fully Threaded, Zinc Plated, Box
3/8-16 X 2-1/2 Hex Head Bolt, Grade 2, Partial Threaded, Hot Dip Galvanized, Jar

55440HGJ

3/8-16 X 2-1/2 Hex Head Bolt, Grade 2, Partial Threaded, Hot Dip Galvanized, Jar

Frequently Asked Questions

What is the head height of this screw?

The head height is 15/64 inches, allowing secure engagement with standard hex tools.

Is this product RoHS compliant?

Yes, the Minerallac 55437 is RoHS compliant.

What is the thread type of this screw?

The screw has a coarse 3/8-16 thread for easy installation and removal.

Is this screw corrosion resistant?

Yes, the zinc-plated finish provides corrosion resistance for outdoor or industrial environments.

What is the tensile strength of this hex cap screw?

The Grade 5 steel hex cap screw has a tensile strength of 120,000 PSI due to quenching and tempering.

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.