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NSI Industries TP321SFC - Machine Screw, Stainless Steel material, 1/4-20 in. Size, 1-1/4 in. length, Flat head, Spanner drive type, #14 driver size
NSI Industries

TP321SFC

Alternate Item Number: 33587

UPC: 639720335873

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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The NSI Industries TP321SFC is a precision-engineered 1/4-20 x 1-1/4" flat head spanner drive machine screw manufactured from Type 18-8 stainless steel, offering superior corrosion resistance and mechanical strength for industrial applications. This screw features a #14 spanner drive recess, enabling secure torque transfer in tight spaces where Phillips or slot drives may fail. The flat head design ensures a flush surface finish, ideal for sheet metal assemblies, electrical enclosures, and machinery where protrusion must be minimized. Key specifications include a 1/4-20 thread pitch, 1-1/4" overall length, and a flat head profile with a 0.437" diameter head. The Type 18-8 stainless steel composition provides excellent resistance to oxidation, chemicals, and high temperatures up to 800°F (427°C), making it suitable for outdoor, marine, and chemical processing environments. The spanner drive type (#14 driver) delivers high torque capacity without cam-out, reducing installation time and improving reliability in repetitive assembly tasks. Common applications include securing panels in HVAC systems, mounting electrical components in control cabinets, assembling food processing equipment, and fastening structural components in marine hardware. The screw is designed for use in pre-drilled or pre-tapped holes, ensuring precise alignment and eliminating the need for thread cutting. Available in bulk packaging (jar/box quantities) for high-volume production environments. NSI Industries, a US-based manufacturer, guarantees consistent quality and dimensional accuracy, meeting industry standards for machine screws. The TP321SFC is part of a comprehensive line of stainless steel fasteners, offering compatibility with standard 1/4-20 tapped holes and reducing inventory complexity. For applications requiring enhanced corrosion resistance, consider Type 316 stainless steel variants (e.g., Minerallac 13220TPJ).
  • Material: Type 18-8 stainless steel for corrosion and temperature resistance
  • Drive Type: #14 spanner drive for high torque transfer without cam-out
  • Head Style: Flat head with 0.437" diameter for flush surface mounting
  • Thread Specs: 1/4-20 UNC, 1-1/4" length, designed for pre-tapped holes
  • Applications: HVAC, electrical enclosures, marine hardware, and industrial assemblies

Specifications

Application
Electrical, Plumbing, Heating and Air Conditioning Industries
Drive Type
Spanner
Driver Size
#14
Head Type
Flat
Length
1-1/4 in
Material
Stainless Steel
Size
1/4-20 IN
Special Features
Features: Tamper-Resistant
Type
Machine Screw
Package Dimensions (L x W x H)
3 IN x 3 IN x 3.6 IN
Package Dimensions (L x W x H)
7.62 cm x 7.62 cm x 9.144 cm
Package Weight (Imperial)
1.550 L
Package Weight (Metric)
0.703 kg
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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.