3M Scotchlok Terminals, Kits, and Tools

For over 30 years, 3M has been a leading supplier of Scotchlok terminals, disconnects, connectors, and tools for high-performance applications in the assembly and maintenance of electrical systems. Our products are recognized for their effective and reliable performance, UL Listed and CSA Certified where appropriate. They offer a variety of types, sizes, and materials to meet a broad application range, including demanding temperature and weather conditions. Design features ensure easy installation, including positive and easy wire insertion, elimination of strand hang-ups and wire twisting, and easy insulation entry, all designed to make the installer's job easier.

Product Attributes

• Brand: 3M
• Product Line: Scotchlok
• Certifications: UL Listed and CSA Certified (where appropriate)
• Temperature Resistance: Non-insulated terminals withstand up to 347F (175C); Insulated terminals withstand up to 221F (105C).
• Insulation Materials: Vinyl, Nylon
• Barrel Construction: Brazed Seam, Butted Seam
• Terminal Features: Insulation Grip, Funnel Barrel Construction, Crimp Ridge, Non-Slip Ridge, Beveled Leading Edge

Technical Specifications

General Terminal Construction Features:

• One-piece, burr-free construction for maximum electrical conductivity.
• Electrical bright-tin plating for maximum corrosion resistance.
• Annealing relieves stress points and assures maximum installed strength.
• Barrel-to-pad transition design minimizes flexing and bending.
• Open-end design permits visual inspection of wire location before and after crimping.
• Multiple V grooves on #264 AWG parts for maximum hold on wire.
• Injection molded insulations are high quality, 221F (105C) rated, and made from tough, resistant electrical grade materials.
• Crimp ridge for positive tool location, reducing miscrimps.
• Funnel barrel construction for positive, easy wire insertion without strand hang-ups.
• Nylon-insulated terminals with grip feature a brass sleeve for optimum grip, strain relief, and vibration protection.
• Beveled leading edge for easy wire insulation entry.

Barrel Styles:

• Non-Insulated Butted Seam: Economical, used where special performance or installation characteristics are not needed.
• Non-Insulated Brazed Seam: Silver brazed seam prevents opening under crimping pressure; stranded wire cannot escape barrel confines.
• Vinyl Insulated Brazed and Butted Seams: Features a flared, rigid molded polyvinyl chloride sleeve securely attached and funneled for easy wire entry.
• Nylon Insulated Butted Seam with Insulation Grip: Features a flared, seamless brass sleeve covered with a flared, molded nylon sleeve.

Heat Shrink Terminals, Connectors and Disconnects:

• Provide moisture protection and corrosion resistance with adhesive-lined heat shrink material.
• Offer improved mechanical performance with enhanced pullout strength and strain relief.
• Durable heat shrink tubing resists abrasion, scoring, cut-through, and aging.
• Available in wire sizes 2210 AWG.

High Temperature Terminals and Connectors:

• Constructed of steel with nickel plating.
• Rated for continuous use at 900F (482C).
• Suitable for ovens, motors, light fixtures, and other high-temperature applications.
• No applicable UL or CSA standard for high temperature steel parts.

Frequently Asked Questions:

• Insulation Grip: Provides a "second" crimp on wire insulation for additional strain relief, excellent for high vibration applications.
• Tool Compatibility: Refer to pages 143-144 for a variety of tools compatible with 3M terminals.
• Insulated vs. Fully Insulated Disconnects: Insulated disconnects have barrel insulation only; fully insulated disconnects are insulated from the barrel to the receptacle/tab.

Terminal Numbering System:

The 3M terminal numbering system identifies the Identity Code, Barrel Style, Wire Size Code, Tongue Code, and Product Availability.

Example: Catalog Number: MNG18-4 FB/SK

• M: 3M Identity
• NG: Barrel Style (Nylon w/ Grip)
• 18: Wire Range (2218 AWG, red)
• -4: Stud/Bullet or Tab Size (4 Stud)
• FB: Tongue Code (Fork, Block)
• /S: Packaging Code (Short)
• K: Packaging Availability (Bulk)

Insulator Color Coding:

• Yellow: 2624 AWG
• Red: 2218 AWG
• Blue: 1614 AWG
• Yellow: 1210 AWG
• Red: 8 AWG
• Blue: 6 AWG
• Yellow: 4 AWG

Product Availability:

• 'X' suffix indicates box packaging.
• 'K' suffix indicates bulk packaging.

Detailed product specifications, dimensions, and part numbers are available in the accompanying tables for each terminal type.