Durable 3M M14-14R SK Scotchlok terminals with burr free construction and corrosion resistant plating

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 known 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, making the installers job easier.

• Brand: 3M
• Product Line: Scotchlok
• Certifications: UL Listed and CSA Certified (where appropriate)
• Temperature Ratings: Non-insulated terminals up to 347F (175C); Insulated terminals up to 221F (105C)

Key Features and Benefits:

• One-piece, burr-free construction: Maximizes electrical conductivity.
• Electrical bright-tin plating: Provides 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: Ensures maximum hold on wire for excellent holding power (on #264 AWG parts).
• Injection molded insulations: High-quality, 221F (105C) rated, tough, resistant electrical grade materials.
• Funnel barrel construction: Facilitates easy wire insertion, prevents strand hang-ups, and eliminates the need for wire twisting.
• Insulation grip feature (Nylon): Includes a brass sleeve for optimum grip on insulation, strain relief, and vibration protection, with a recessed sleeve for excellent flash-over protection.
• Non-slip ridge: Aids in tool positioning for proper crimping.
• Beveled leading edge: Facilitates easy wire insulation entry.

Terminal Construction Types:

• Non-Insulated Butted Seam: Economical, used where special performance or installation characteristics are not needed.
• Non-Insulated Brazed Seam: Beveled mouth for easy insertion; can be crimped anywhere on the barrel; silver brazed seam prevents wire escape.
• Vinyl Insulated (Brazed and Butted Seams): Insulated barrel with flared, rigid molded polyvinyl chloride sleeve; funneled for easy wire entry; non-slip ridge for tool positioning. Rated for -40F to 221F (-40C to 105C).
• Nylon Insulated with Insulation Grip (Butted Seam): Insulated barrel with flared, seamless brass sleeve and flared, molded nylon sleeve; mistake-proof tool positioning due to a step in nylon insulation. Rated for -40F to 221F (-40C to 105C).

Heat Shrink Terminals, Connectors, and Disconnects:

Offer superior moisture protection and corrosion resistance with adhesive-lined heat shrink material. Provide improved mechanical performance with enhanced pullout strength and strain relief. Durable heat shrink tubing resists abrasion 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) for applications like ovens, motors, and light fixtures. No applicable UL or CSA standard for these 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 compatible tools.
• Insulated vs. Fully Insulated Disconnects: Insulated disconnects have barrel insulation only; fully insulated disconnects are insulated from the barrel to the receptacle/tab.

Glossary of Terms:

• Adapters: To interconnect two connectors already attached to wires.
• Block Fork: Same strength as a fork, but designed for terminal blocks with flat sides against the barrier.
• Bullet Style: Reliable in-line connection with holding friction when joined, often used in automotive applications.
• Butt Connectors: Chamfered barrel ends for fast wire insertion from both ends, with a built-in wire stop; must be crimped at both ends.
• Closed-End Connectors: Used for pigtailing two or more wires.
• Flanged Fork: Combines benefits of block and locking forks; stays secure if screw loosens.
• Fork: Allows rapid wire connection, typically used on free-standing studs due to wider tongues.
• Locking Fork: Spring-like tongue locks onto the stud, even if the mounting screw is loose; requires extra force for removal.
• Parallel Connectors: Similar to butt connectors but with overlapped wires and a single center crimp; used where space is limited.
• Pins: For installation in compression blocks; used in Europe for terminating stranded wire.
• Quick Connect (Disconnect): Female part tongue slips over male tab for quick connection/disconnection; dents and rolled edges provide excellent holding force.
• Ring Tongues: Standard tongue style; safest and most reliable; cannot be removed unless mounting screw is removed.
• Tabs: Use mounting hole for rivet or screw.
• Taps: No wire stripping needed; lay wire in connector and crimp for connection.

Dimensions are measured in inches unless otherwise noted.

3M Terminal Numbering System:

The numbering system follows a pattern: 3M Identity Code/Barrel Style, Wire Size Code (AWG), Stud/Tab/Bullet Size, Tongue Code, Product Availability.

Insulator Color Coding:

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

Tools:

• TH-440 Scissors: Compact, high-quality tool for 2210 AWG terminals. Features anvil-type wire cutter, crimp dies for insulated and non-insulated terminals, cut-off dies for screws, and wire stripping stations.
• TH-450 Scissors: Versatile, heavy-duty tool for 266 AWG terminals. Features anvil-type wire cutter, multiple crimp dies for various terminal types, cut-off dies for screws, and wire stripping stations.
• TR-482 Ratchet Tool: Crimps barrel and insulation grip simultaneously on 2210 AWG insulated terminals. Features color-coded dies, spring-loaded locator, conductor stop, and positive closure ratchet.
• TR-490 Ratchet Tool: Crimps barrel and insulation grip independently on 2210 AWG insulated and non-insulated terminals. Features color-coded dies for insulated and non-insulated terminals, ratchet mechanism, and pawl release lever.

Terminal Stud Size Chart:

Provides a cross-reference between US/Inch and OUS/Metric stud sizes and corresponding hole diameters.

American Wire Gauge:

Provides a cross-reference between AWG sizes and corresponding millimeter sizes.

Note: Product availability suffixes (X for box, K for bulk) indicate packaging.