Velvac, Inc. offers crimp, non-insulated crimp, brazed seam crimp, crimp/seal, crimp/solder/seal, and heatless but connectors. Crimp, brazed seam, and non-insulated crimp connectors are designated to withstand temperatures of -40°F to 221°F. Crimp and non-insulated crimp connectors range in gauge size from 12 - 10 to 22 - 18. Crimp connectors are made of vinyl and nylon materials. Brazed seam crimp connectors have a gauge range from 4 to 8. Heatless connectors use a revolutionary anaerobic sealing technology that requires no heat. Wire gauge options range from 12 - 10 to 22 - 18.

Macron Dynamics, Inc. offers a butt joint connector made of zinc die and zinc plating materials. Screw thread measures: M8x55, 1.25 thread. The recommended torque per connection is 25 Nm, and the connector weighs 2.080 oz.

Great Valley Industries, Inc. offers butt connectors and moisture resistant butt connectors. Connectors have gauge options ranging from 10 to 12 to 18 to 22. Moisture resistant butt connectors have lengths ranging from 1.01 to 1.18. Order quantity options include: 1C/PKG, 25/PKG, 50/PKG, and bulk.

Grainger Industrial Supply offers butt splice connectors in vinyl, non-insulated, full, nylon, heat shrink, and partial nylon configurations. Butt splice connectors come in a wide variety of wire ranges, including: 1, 12 to 10, 16 to 14, 22 to 16, 250 kcmil, 3/0, etc. Colors offered include: yellow, blue, red, pink, metallic, light yellow, gray, brown, black, green, purple, etc. Brands offered include: 3M, Tyco Electronics, Thomas & Betts, and Sta-Kon.

Fastenal offers heat shrink butt connectors in a variety of styles, including: crimp, sealed crimp, sealed solder, sealed crimp & solder, sleeve, solder, and crimp & solder. Color options include: blue, clear, white, red, yellow, pink, etc. Wire range options include 12-8 AWG up to 24-22 AWG. Stud sizing ranges from 1/4" to #6.

Gromet Electronics offers non-insulated seamless, non-insulated butted seam, non-insulated brazed seam, vinyl insulated seamless, vinyl insulated butted seam, vinyl insulated brazed seam, nylon insulated seamless, nylon insulated with insulation grip, and (moisture resistant) nylon insulated with insulated grip butt connectors. Connectors have from 4 to 22-18 AWG. Maximum thickness offered is 0.75, and the maximum ID offered is 0.175. Colors offered include: red, blue, and yellow. Connector length ranges from 0.12 to 0.53.

Maney Wire & Cable offers vinyl, butted seam, nylon, flared end, straight barrel, extra crimp sleeve, step down, vinyl insulated, heat shrink insulated, butted seam non-insulated, brazed seam, non-insulated seamless, and high-temp butt connectors. Wire size ranges from 4 to 22-18. Color options include: blue, yellow, red, red stripe, blue stripe, and yellow stripe.

All Electronics Hardware offers vinyl insulated, nylon insulated, and splice butt connectors. Wire sizing ranges from 2-10 AWG to 22-18 AWG, and barrel length ranges from 0.175" to 0.250". Connectors have a 600 volt capacity and come in blue, red, and yellow colors. Connectors are UL-CSA listed and feature a funneled sleeve, which reduces strand hang-ups.

Waytek, Inc. offers several styles of butt connectors, including: moisture resistant, heat shrink, step down, standard insulated, non-insulated butted, non-insulated brazed, non0insulated seamless, insulated nylon, insulated vinyl, parallel-insulated vinyl, parallel non-insulated, etc. Specialty butt connectors are offered for applications where environmental, vibrational, or other problems are present.

3M offers butt connectors in a variety of sizes and materials. Product offerings include: non-insulated seamless, nylon insulated seamless, nylon insulated with insulation grip, seamless butt heat shrink, vinyl, vinyl insulated brazed seam, vinyl insulated butted seam, and vinyl insulated seamless butt connectors.  Minimum connector wire range is 12-10, and the maximum is 22-18 AWG.

SAS Automation offers low cost, stable, perpendicular end-but connectors for joining two profiles. Connectors will not interfere with components on either profile. Cap screw, serrated lock washer, and channel nut with through hole is included. Drilling of one profile using an STB step drill and tapping the end of the profile required.

Rhino Fasteners offers insulated seamless, non-insulated seamless, and insulated seem butt connectors. Wire sizing ranges from 12-10 to 26-22, length ranges from 0.079 to 1.20, and inside diameter ranges from 0.080 to 0.268.

AEI Components offers seamless nylon butt connectors. Connectors come in red, blue, and yellow colors. Wire sizing ranges from 12-10 to 22-18 AWG. Connectors come in economy, low cost OEM, and female configurations.

Crowbar Electrical Parts offers heat shrink, nylon, nylon insulated, and vinyl butt connectors. Wire gauge ranges from 2 to 22-18 AWG. Vinyl insulated connectors are extremely economical and can be used when no special protection or characteristics are required. Nylon insulated connectors provide higher temperature and better durability than vinyl. They also have a seamless crimping barrel for maximum crimpability. Seamless nylon connectors come with either a straight or a flared barrel insulator. Heatshrink connectors provide the maximum protection against environmental exposure. All connectors are rated to 600 volts.