Authorized Minerallac Company Distributor
Minerallac Company 79221J - Self-drilling (TEK) sheet metal screw with a hex washer head and #5 drill point. It is made of steel with a zinc plated finish and silver head color. The screw size is #12-24 x 1-1/4 in, with a length of 1.250 in and Type-BSD thread type.
Minerallac Company

79221J

Alternate Item Number: 12112188

UPC: 085937043528

Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Minerallac Company 79221J is a #5 Hex Washer Head (HWH) TEK screw, sized 12-24 x 1-1/4 inches, manufactured from steel for high-strength applications. This self-tapping fastener features a Square Drive design, ensuring secure engagement with driver bits to minimize cam-out and maximize torque transfer during installation. The broad Hex Washer Head distributes clamping force evenly, preventing pull-through in sheet metal and thin materials. Ideal for metal framing, HVAC ductwork, electrical enclosures, and general construction projects requiring reliable fastening into steel or other metals. The #5 thread designation indicates a nominal major diameter of 0.185 inches, providing robust thread engagement in pre-drilled or punched holes. Compatible with standard 12-24 threaded applications, this screw eliminates the need for separate tapping operations, reducing installation time. Minerallac, a U.S.-based manufacturer, ensures consistent quality and dimensional accuracy for industrial fasteners. UNSPSC code 31161500.
  • Steel construction for high-strength applications
  • 12-24 x 1-1/4" size with #5 thread designation
  • Hex Washer Head distributes load and prevents pull-through
  • Square Drive ensures secure bit engagement and reduces cam-out
  • Self-tapping design eliminates need for pre-tapped holes

Specifications

Finish
Zinc Plated
Head Color
Silver
Head Height
0.303" IN
Head Type
Hex Washer Head
Head Width
0.309" IN
Length
1.250" IN
Material
Steel
Size
#12-24 x 1-1/4" IN
Special Features
Self Drilling Screw
Thread Size
24 TPI
Thread Type
Type-BSD
Type
Tek Screws
This is a self drilling Tek screw made of steel. It has a #12-24 x 1-1/4" size, a Type-BSD thread, and a hex washer head. The screw has a Climaseal anti corrosion coating and a silver head color.

79274J

This is a self drilling Tek screw made of steel. It has a #12-24 x 1-1/4" size, a Type-BSD thread, and a hex washer head. The screw has a Climaseal anti corrosion coating and a silver head color.
Self-Drilling & Tapping Drywall Screw, Steel material, #6 Size, 1 in. length, Fine thread type, Bugle head, Zinc finish, Phillips drive, Self Drill Point, 100 per pack, #1 bit size. For use with 12 Gauge Steel Stud.

JSDS1C

Self-Drilling & Tapping Drywall Screw, Steel material, #6 Size, 1 in. length, Fine thread type, Bugle head, Zinc finish, Phillips drive, Self Drill Point, 100 per pack, #1 bit size. For use with 12 Gauge Steel Stud.
Screw, Self-Drilling, Size 8 x 3/4 Inch, Hex Head Size 1/4 Inch, Point Number 2

54-301

Screw, Self-Drilling, Size 8 x 3/4 Inch, Hex Head Size 1/4 Inch, Point Number 2
These are 8 x 1/2 inch lath tek screws (K-Lath) with a wafer head and Phillips drive. They are made of steel with a zinc plated finish and a silver head color. The screws are Type-BSD self-drilling with #8 size, 18 thread size, and a 0.370 inch head width.

26809-6

These are 8 x 1/2 inch lath tek screws (K-Lath) with a wafer head and Phillips drive. They are made of steel with a zinc plated finish and a silver head color. The screws are Type-BSD self-drilling with #8 size, 18 thread size, and a 0.370 inch head width.
Tek screws with a hex washer head for drilling and fastening applications. They are made of steel with a zinc plated finish. The screw size is #10-16 and the length is 2 inches.

79032-6

Tek screws with a hex washer head for drilling and fastening applications. They are made of steel with a zinc plated finish. The screw size is #10-16 and the length is 2 inches.
This is a 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 is size #12-14, 3/4" long, with Type-BSD thread type and 14 thread size.

79212-6

This is a 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 is size #12-14, 3/4" long, with Type-BSD thread type and 14 thread size.
Self drilling Tek screws with a hex washer head. Made of steel with a zinc plated finish. Size is #10-16 and length is 1-1/4 in. Thread type is Type-BSD with 16 TPI.

79020-6

Self drilling Tek screws with a hex washer head. Made of steel with a zinc plated finish. Size is #10-16 and length is 1-1/4 in. Thread type is Type-BSD with 16 TPI.
This is a sheet metal screw for use with sheet metal. It is made of steel with a zinc plated finish and has a wafer head with a Phillips drive. The screw size is 8 x 1", with a length of 1" and Type-A threads.

14817-6

This is a sheet metal screw for use with sheet metal. It is made of steel with a zinc plated finish and has a wafer head with a Phillips drive. The screw size is 8 x 1", with a length of 1" and Type-A 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.