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Minerallac Company 79420J - Self-drilling (TEK) sheet metal screw with a hex washer head and #3 drill point. It is made of steel with a zinc plated finish. The screw size is 1/4"-14 and the length is 1-1/4".
Minerallac Company

79420J

Alternate Item Number: 16733965

UPC: 085937952974

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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company 79420J is a self-drilling and self-tapping TEK screw engineered for robust metal-to-metal and metal-to-other material connections. Constructed from durable zinc-plated steel, this fastener offers reliable corrosion resistance for industrial applications. Its 1/4-14 thread size and 1-1/4 inch length provide substantial holding power, suitable for load-bearing assemblies. The Hex Washer Head (HWH) design ensures a broad bearing surface, preventing over-tightening and promoting a flush finish during installation. This specific TEK screw is ideal for applications where secure fastening is paramount and requires a fastener that can initiate its own pilot hole. Refer to project specifications for precise material compatibility and required load capacities. Minerallac Company is a trusted manufacturer of quality fasteners for various construction and industrial needs. The SKU 79420J signifies a specific configuration within their extensive TEK screw product line, designed for efficiency and performance in demanding environments. This fastener is manufactured in the USA, ensuring adherence to high-quality standards. The UNSPSC code 31161500 categorizes this product within the industrial fastener segment.
  • Self-drilling and self-tapping TEK screw for efficient installation
  • 1/4-14 thread size and 1-1/4 inch length for strong connections
  • Hex Washer Head (HWH) for broad bearing surface and flush finish
  • Zinc-plated steel construction for corrosion resistance
  • Ideal for metal-to-metal and metal-to-other material fastening

Specifications

Finish
Zinc Plated
Head Color
Silver
Head Height
0.181 in
Head Height
4.5974 mm
Head Type
Hex Washer Head
Head Type
Hexagon
Head Width
0.371 in
Head Width
9.4234 mm
Length
1-1/4 in
Material
Zinc-Plated Steel
Material
Steel
Mounting Type
Self-drilling and self-tapping
Series
Minerallac TEK Screws
Size
1/4-14 x 1-1/4
Size
1/4-14 x 1-1/4 inch
Size
1/4"-14
Thread Size
14 TPI
Thread Type
Type-BSD
Type
Tek Screws
Package Weight (Imperial)
1.72 lbs
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Frequently Asked Questions

What material is the Minerallac 79420J TEK screw made from?

The Minerallac 79420J TEK screw is made from zinc-plated steel.

What are the dimensions of the Minerallac 79420J TEK screw?

The Minerallac 79420J TEK screw has a size of 1/4-14 x 1-1/4 inches.

What type of head does the Minerallac 79420J TEK screw feature?

The Minerallac 79420J TEK screw features a Hex Washer Head (HWH).

Does the Minerallac 79420J TEK screw offer corrosion resistance?

Yes, the zinc-plated steel construction of the Minerallac 79420J TEK screw provides corrosion resistance.

What is the primary application for Minerallac 79420J TEK screws?

These TEK screws are designed for secure metal-to-metal or metal-to-other material connections in industrial applications.

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.