Minerallac Company 39522 - This kit contains 1/4"-20 hex head bolts in multiple lengths, along with matching hex nuts and flat cut washers. The bolts are Grade 2 steel with a zinc plated finish and silver head color. Included bolt lengths are 3/4", 1", 1-1/4", and 1-1/2".
Minerallac Company

39522

UPC: 085937395221

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Overview

The Minerallac Company 39522 1/4-20 Hex Head Bolt Kit is a precision-engineered fastening solution designed for industrial, electrical, and mechanical applications requiring reliable zinc-plated Grade 2 steel fasteners. This kit includes 1/4-20 hex head bolts in four standard lengths—3/4", 1", 1-1/4", and 1-1/2"—along with matching hex nuts and flat cut washers, providing a complete hardware set for secure, corrosion-resistant assemblies. Each bolt features a zinc-plated finish with a silver head color, ensuring enhanced resistance to rust and oxidation in harsh environments. The Grade 2 steel construction delivers balanced strength and workability, making these bolts suitable for general-purpose fastening in panel boards, enclosures, and machinery where moderate load-bearing capacity is required. The included hex nuts and flat washers eliminate the need for separate procurement, streamlining inventory and reducing assembly time. Common applications include securing electrical panels, mounting equipment to metal frames, assembling machinery frames, and general construction tasks where 1/4-20 fasteners are specified. The kit’s compact sizing and standardized threading (UNC/UNF) ensure compatibility with existing infrastructure, reducing the risk of mismatched components. With Minerallac’s reputation for durable, precision-made hardware, this kit is a cost-effective choice for maintenance teams, contractors, and OEMs requiring bulk fastening solutions. Each component in the 39522 kit is manufactured in the USA, adhering to industry standards for dimensional accuracy and material consistency. The bolts conform to standard 1/4-20 threading specifications, ensuring interchangeability with other 1/4-20 hardware. The zinc plating provides a protective barrier against moisture and chemicals, extending service life in indoor and outdoor environments. For bulk applications, consider Minerallac’s individual 1/4-20 hex head bolts (e.g., SKU 55012-1000 for 1000-piece packs or 55012-2500 for 2500-piece bulk quantities) if additional quantities are needed beyond the kit’s included pieces.
  • Includes 1/4-20 hex head bolts in 3/4", 1", 1-1/4", and 1-1/2" lengths
  • Zinc-plated Grade 2 steel bolts with silver heads for corrosion resistance
  • Kit includes matching hex nuts and flat cut washers for complete assemblies
  • Suitable for panel boards, enclosures, machinery, and general construction
  • Manufactured in the USA with standard 1/4-20 threading for compatibility

Specifications

Color
Silver
Finish
Zinc Plated
Head Color
Silver
Head Height
5/32 in
Head Type
Hex Head
Head Width
7/16 in
Kit Includes
1/4"-20 Hex Head Bolt: 20 pc(s) 3/4";14 pc(s) 1-1/4";16 pc(s) 1";and 12 pc(s) 1-1/2" 62 pc(s) 1/4"-20 Hex Nut 62 pc(s) 1/4" Flat Cut Washer
Length
3/4", 1", 1-1/4", 1-1/2" IN
Material
Grade 2 Steel
Material Quality
Grade 2 Steel
Size
1/4"-20
Size
1/4"-20 x (3/4", 1", 1-1/4", 1-1/2")
Special Features
Made of medium carbon steel—quenched and tempered.
Thread Size
20 TPI
Thread Type
Coarse
Type
Hex Cap Bolt
Hex cap bolt made of Grade 2 steel. It is 1/4"-20 x 2-1/2" with coarse threads and a hex head. The bolt has a bright finish and a silver head color.

55040BFG

Hex cap bolt made of Grade 2 steel. It is 1/4"-20 x 2-1/2" with coarse threads and a hex head. The bolt has a bright finish and a silver head color.
3/8-16 x 1-1/4 Socket Head Cap Screw 18-8 Stainless Steel

JSHC38114SS

3/8-16 x 1-1/4 Socket Head Cap Screw 18-8 Stainless Steel
Bolt, Hex Head Cap, Size 3/8 x 1-1/4 Inches, Stainless Steel

E142 3/8X1 1/4SS

Bolt, Hex Head Cap, Size 3/8 x 1-1/4 Inches, Stainless Steel

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.