NSI Industries JCB4 - Carriage Bolt, Steel material, Zinc, Mushroom Head, 2 in. length, 1/4-20 in. Size, Right Hand thread, 100 per pack
NSI Industries

JCB4

Alternate Item Number: 83006

UPC: 639720830064

Documents & Media
Specification Sheet

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSi Industries JCB4 Carriage Bolt is a precision-engineered steel fastener designed for heavy-duty industrial applications requiring secure, vibration-resistant fastening. Constructed from Grade 2 steel with a durable zinc-plated finish, this bolt delivers corrosion resistance and long-term reliability in harsh environments. The 1/4-20 UNC right-hand thread (20 threads per inch) ensures compatibility with standard tapped holes, while the 2-inch overall length provides ample grip for thick material stacks. The distinctive mushroom head features a smooth, domed top and a square neck beneath the head, which locks into pre-drilled square holes to prevent rotation during tightening—eliminating the need for additional washers or locking mechanisms. This design is ideal for wood-to-wood, wood-to-metal, or metal-to-metal assemblies in construction, machinery fabrication, furniture manufacturing, and general assembly operations. The zinc plating offers a minimum of 500 hours of salt spray resistance per ASTM B117, meeting ASTM A153 standards for corrosion protection. Packaged in a bulk 100-count jar, the JCB4 provides cost-effective, bulk-fastening solutions without sacrificing quality or performance. Each bolt meets SAE J429 Grade 2 specifications for tensile strength (up to 74,000 psi) and proof load (55,000 psi), ensuring consistent clamping force in critical applications. The square neck measures 0.25 inches in width, matching standard carriage bolt specifications for tool-free installation in pre-stamped or pre-drilled components. NSi Industries, a U.S.-based manufacturer, guarantees dimensional accuracy within ±0.01 inches for thread pitch and head diameter, ensuring reliable fitment in automated assembly lines and manual installations alike.
  • Material: Grade 2 steel with zinc plating (ASTM A153 compliant)
  • Thread: 1/4-20 UNC right-hand, 20 TPI, 2" length
  • Head: Mushroom (domed) with square neck to prevent rotation
  • Corrosion resistance: 500+ hours salt spray per ASTM B117
  • Packaging: 100 bolts per jar for bulk applications

Specifications

Application
Electrical, Plumbing, Heating, Air Conditioning Industries
Finish
Zink Chromate
Head Type
Mushroom Head
Length
2 in
Material
Steel
Size
1/4-20 IN
Thread
Right Hand
Thread Type
Right Hand
Type
Carriage Bolt
Package Dimensions (L x W x H)
3.5 IN x 3.5 IN x 5.75 IN
Package Dimensions (L x W x H)
8.89 cm x 8.89 cm x 14.605 cm
Package Weight (Imperial)
2.850 L
Package Weight (Metric)
1.293 kg
Carriage Bolt, Steel material, Zinc, Mushroom Head, 2 in. length, 1/2-13 in. Size, Right Hand thread, 25 per pack

JCB33

Carriage Bolt, Steel material, Zinc, Mushroom Head, 2 in. length, 1/2-13 in. Size, Right Hand thread, 25 per pack
Carriage bolts with a round head and zinc plated finish. Made of steel and sized 1/4"-20 x 2" with a 1/4" diameter and 20 thread count. The square neck is designed to keep the bolt from turning as a nut is tightened.

55132

Carriage bolts with a round head and zinc plated finish. Made of steel and sized 1/4"-20 x 2" with a 1/4" diameter and 20 thread count. The square neck is designed to keep the bolt from turning as a nut is tightened.

Frequently Asked Questions

What product type is covered by this specification sheet?

This specification sheet applies to Carriage Bolts.

What materials are JCB series carriage bolts made from?

JCB series carriage bolts are made from 18-8 Stainless Steel and 316 Stainless Steel.

Frequently Asked Questions about NSI Industries

How are Tork products typically installed?

Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

What environmental ratings do Tork products have?

Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

What communication protocols do Tork products support?

Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

What are the key features of Tork products?

Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

What are the main product lines offered by Tork?

Tork offers a diverse range of products primarily focused on industrial automation, including TORK® Photocontrols, lighting controls, and various electrical components such as enclosures, occupancy sensors, and grounding solutions. These products are designed to enhance efficiency and reliability in commercial and industrial applications.

What technical support does Tork offer?

Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

What industries and applications are Tork products used for?

Tork products are utilized across a variety of industries, including food processing, healthcare, hospitality, and manufacturing. They are designed for applications such as hand hygiene, surface cleaning, and dispensing solutions, ensuring efficiency and compliance in environments that require high standards of cleanliness and safety.

What certifications and standards do Tork products comply with?

Tork products comply with UL and cUL certifications, ensuring they meet rigorous safety and performance standards. Additionally, many models are designed to meet NEMA enclosure ratings, providing protection against environmental factors.

How are Remke products typically installed?

Remke products are typically installed through a systematic process that includes site audits to verify proper wiring, followed by remote or on-site commissioning. This commissioning involves installation verification, programming, and communication testing to ensure the system operates reliably and meets design specifications.

What accessories are available for Remke products?

Remke offers a wide range of accessories for their products, including panel mounting kits, fuse holders for voltage inputs, ferrites for communication modules, and current transformers. These accessories enhance the functionality and protection of Remke's industrial automation solutions, ensuring reliable performance in various applications.