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Minerallac Company 50743 - Machine screw in zinc-plated steel. The listed size is #4-40 x 3/8 inch. The sheet also identifies the material as steel with zinc plating.
Minerallac Company

50743

Alternate Item Number: 13925775

UPC: 085937033291

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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company SKU 50743, part of the Cully sub-brand, is a #4-40 x 3/8 inch round head machine screw designed for secure mechanical fastening in industrial applications. Constructed from durable steel with a zinc-plated finish, this fastener provides inherent strength and corrosion resistance suitable for typical industrial and outdoor conditions. It features 2A external threads with 40 threads per inch (TPI), ensuring compatibility with standard hardware. The round head has a diameter of 0.472 inches and a height of 0.175 inches, offering a low-profile design for applications where surface clearance is critical. The #3 Phillips/Slotted combination drive allows for versatile installation, accommodating multiple tool types for ease of use. This machine screw is intended for use with a pre-tapped hole or with a nut. It is RoHS Compliant. The steel material used in this machine screw is identified as carbon steel, which provides high tensile strength and durability. The zinc plating offers a protective barrier against rust and corrosion, extending the lifespan of the fastener in harsh environments. The #4-40 thread size is a standard metric in the United States, commonly used in electrical, plumbing, and general construction applications. The 3/8 inch length ensures sufficient engagement with mating components while maintaining a compact profile. The 2A thread classification indicates a general-purpose thread with a free fit, suitable for most industrial applications. The combination drive head design enhances usability by allowing installation with either a Phillips or slotted screwdriver, reducing the need for multiple tool types.
  • Material: Steel with Zinc Plated Finish
  • Size: #4-40 x 3/8 inch
  • Head Type: Round Head
  • Drive Type: Phillips/Slotted Combination
  • Thread Classification: 2A External Threads
  • Packaging: 100 pieces per unit, 1,200 per master carton
  • SKU: 50743
  • Country of Origin: US
  • Compliant with California Proposition 65 (no known associated chemicals)
  • Country of Origin: United States

Specifications

Color
Silver
Color
Zinc-Plated
Color
Zinc-Plated (Silver)
Material
Zinc Plated Steel
Material
Steel
Material
Zinc-Plated Steel
Material
Steel with Zinc Plating
Series
Cully
Size
4-40 X 3/8 inch
Size
4-40 x 3/8"
Size
#4-40 x 3/8"
Size
#4-40 x 3/8 inch
Package Weight (Imperial)
0.21 lbs
Machine screw for use with a pre-tapped hole or with a nut. It is made of steel with a zinc plated finish. The screw size is 6-32 x 1/2 in and it has a flat head with Phillips drive.

50109J

Machine screw for use with a pre-tapped hole or with a nut. It is made of steel with a zinc plated finish. The screw size is 6-32 x 1/2 in and it has a flat head with Phillips drive.
1/4-20 x 1-1/4 Truss Hd Phillips Machine Screw Zinc

JTMP102

1/4-20 x 1-1/4 Truss Hd Phillips Machine Screw Zinc
25 PKG SCREWS & NYLON WASHER

SCREWM6-25

25 PKG SCREWS & NYLON WASHER
4-40 X 1/2 RHMS SQ/SLOT ZP

50744

4-40 X 1/2 RHMS SQ/SLOT ZP
8-32 x 1/2 BINDING MS SLOT ZP

51197

8-32 x 1/2 BINDING MS SLOT ZP
1/4-20 X 3/4 PHMS PHIL 18-8SS

62912SS

1/4-20 X 3/4 PHMS PHIL 18-8SS
6-32 X 1 BINDING MS SLOT ZP

50729

6-32 X 1 BINDING MS SLOT ZP
6-32 X 1/4 RHMS PHLI ZP

50731

6-32 X 1/4 RHMS PHLI ZP

Frequently Asked Questions

What is the thread size of Minerallac SKU 50743?

The thread size for Minerallac SKU 50743 is #4-40.

What is the length of this machine screw?

The length of Minerallac SKU 50743 is 3/8 inches.

What material is the Minerallac 50743 screw made from?

Minerallac SKU 50743 is made from steel.

What type of head does this Minerallac screw have?

Minerallac SKU 50743 features a Phillips head.

What is the finish on the Minerallac 50743 screw?

The Minerallac SKU 50743 screw has a zinc-plated finish.

Where is the Minerallac 50743 screw manufactured?

Minerallac SKU 50743 is manufactured in the US.

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.