Hex Screw - Self Drilling Unslotted Washer Head #8 x 1/2"

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• Trailer Lights Cut Off When Coupled to the Tow Vehicle
  I know that you said you checked your grounds but the issue you are having is very common with a weak ground. Therefore, in order to fix this issue I recommend using a junction box like part # 38656. Once you have this installed you can then run the grounds for all of your lights and the trailer connector to the ground terminal inside the junction box, then to a single point on the tongue with 10 gauge wire part # 10-1-1, a ring terminal part # DW05705-1, and a self-tapping screw part #...
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• How Do I Re-Wire My Pop-Up Trailer To A 4-Pole Trailer Connector? They
  In order to wire your pop-up trailer with a 4-pole wiring harness like the 35 Ft 4-Way Trailer Wiring Harness - Wishbone Style # A35W42B, you're going to first have to: 1. Connect the white ground wire to your trailer's frame. You'll want to make sure that the spot you choose for grounding is a clean, bare, surface that is free from rust. You'll use the already attached ring terminal, as well as a self-tapping screw # 101131802. Before you secure your ground wire, be sure to leave the...
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• How to Install a Three Wire Trailer Light
  It sounds like your current lights with 2 wires ground to the trailer by the mounting hardware. The One LED RV Passenger Tail Light # RVSTL0060 has three wires, the white wire is the ground, the black wire is the taillight and the green wire is for your stop lights and turn signals. To hook up your lights you will need to splice together the taillight and stop/turn wires. Then you will need to take the white wire and ground it to the trailer itself. To ground your wire you will want to...
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• LED Tailgate Light Bar Only Works Without Taillights On
  I am sorry to hear about the issue you are having with your light bar. The problem you described sounds like a ground issue. If you have a light bar that plugs directly into a 4-way then I would remove the ground from the 4-way and then attach it directly to a bare metal surface on the vehicle with a ring terminal part # 44-5310A and self-tapping screw part # 101131802. The majority of issues like what you described are caused by a bad ground as the circuit cannot handle the extra load...
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• How to Wire a Trailer for Tail Lights
  First, lets make sure you have all of the parts you need to wire a trailer for lights. If you have an old trailer and want to replace everything, I recommend using a kit like our Optronics Tail Light Kit, # TL29BK and our trailer wiring installation kit # HM51020. We also have an LED kit, # TLL9RK. Step 1 - The trailer connector should extend 2 - 3 feet past the tongue. Attach the ground wire directly to the tongue of the trailer using a self tapping screw # 101131802 and a ring terminal...
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• Trailer Tail Lights Pulsate When Running Lights Are Activated
  The issue you are having with your lights pulsating is because of a bad ground. This usually happens when multiple signals are applied at the same time because the increased power draw then becomes too much for the ground to handle. In order to fix this issue I recommend using a junction box like part # 38656. Once you have this installed you can then run the grounds for all of your lights and the trailer connector to the ground terminal inside the junction box, then to a single point on...
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• Brake Controller and Plug and Play Harness for 2018 Toyota Tacoma With Factory Tow Package
  The Prodigy P3 # 90195 will work with your 2018 Toyota Tacoma's factory 7-way with Wiring Adapter # 3031-P. All you need to do is plug one end into the P3 and the other end into the port underneath your Tacoma's dash; you will need to ground the white wire of the adapter to a bare metal surface using a self-tapping screw such as # 101131802.
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• How to Connect the Ground Wire on a 4-Way Flat Wiring Harness
  The Hopkins Endurance 4-way Flat Trailer End Connector, # HM48110, that you referenced is the harness that goes on a trailer, not a vehicle. The 4-way connector for your vehicle is the Hopkins Endurance 4-Way Flat Vehicle End Connector, # HM48030. You can connect the white ground wire from the wiring harness to a vehicle ground, but you should verify that the white wire on your vehicle is in fact a ground wire. In most cases the white wire from the wiring harness is attached to a clean,...
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• Recommended Self-Tapping Mounting Screw for Hopkins Bubble Level Mounting on Fiberglass Camper Shell
  The Hopkins Never Fade Trailer Bubble Level Set - Graduated - Two Way - Stick On/Screw On # HM08526 you referenced does not come with mounting screws. I recommend using the Hex Screw - Self Drilling Unslotted Washer Head # 101131802 for your fiberglass camper installation. Be careful not to over tighten or they may damage your camper or level.
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• Installing a Brake Controller in 2001 Toyota Tacoma
  Based on my research, the 2001 Toyota Tacoma did not come with a factory trailer connector. However, since you already have a 4-way connector installed on your truck, you will be able to start here for your brake controller installation. I recommend the Tekonsha Prodigy P2 Trailer Brake Controller # 90885. This is a proportional brake controller with a digital display. It will level automatically when mounted within a 360-degree vertical range. The brake controller installs in your Tacoma...
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• Dragon's Eye LED Clearance or Side Marker Light Colors and Mounting Hardware
  Yes, the Dragon's Eye LED Clearance or Side Marker Light is available in Amber # DG52440VP as well as Red # DG52441VP. When we installed this on a trailer we used the #8 x 1/2" Hex Screw # 101131802 which is great for metal installations. If you'll be installing these on a different type of surface you'll need to use the appropriate screw type.
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• Availability of Self-Tapping Screws
  We offer two sizes of self-tapping button- (or washer-) head screws. Part # FA1131822 has an unslotted hex head and is 1/4 -14 x 3/4-inch long threads. Part # 101131802 is # 8 x 1/2-inch long.
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• Replacement Self-Tapping Screw for Ground on 4-Way Wiring Kit for 2011 Dodge Grand Caravan
  To replace the self-tapping screw used for the ground wire with the T-One Wiring Kit # C56331 you'll need part # 101131802. Be sure to use a 3/32" drill bit to drill out a starter hole prior to installing the screw.
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• Troubleshooting Trailer Connection Wiring on 2013 Chevrolet Silverado
  It sounds like you are having an issue with the ground on your 7-way trailer connection. The first thing to do is use a little sand paper or steel wool and clean the connections of your 7-way. Then add some dielectric grease # 11755 to keep the connections clean and free of moisture. If that doesn't solve your ground connection, then you will simply trace the wire harness from the back side of your 7-way to find where it is physically connected to the truck frame. The white wire in...
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• Will the 1/2 Inch Metal Loom Clamps Work On a 5/16 Inch Frame Rail
  Yes, the Metal Loom Clamp part # A0500 will work on a trailer frame that is 5/16" thick. The Metal Loom Clamp will actually work on pretty much any frame thickness but you will need to make note of the size screw used. I recommend the Hex Screw part # 101131802 for a 5/16" thick frame as it is 1/2" long. The Wire Loom part # 459075 can then be added to protect your wiring. I have attached a list of our other wiring accessories for you below as well.
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• ETBC7 Kit Without the Hopkins 4-Pole to 7-Pole Adapter
  Though there is not a kit with everything but the Hopkins # 37185, we can get you everything you need from the # ETBC7 so you won't have to spend money on a part you don't need. Start with Wiring Kit # 5506, which has 25' of wire, 20-, 30- and 40-amp circuit breakers, butt connectors and ring terminals. You'll also want a pair of Quick Splice Wire Connectors # SWC501746-1, four self-tapping screws # 101131802 and one larger self-tapping screw # FA1131822. Next, you'll need a circuit tester,...
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• Are 3/8" Self Tapping Screws Available
  Glenn it does not look like we carry any 3/8" self tapping screws. We do have the Self-Tapping Screw # FA1131822 which is 1/4" - 14 x 3/4" or the Hex Screw # 101131802 which is #8 x 1/2" but no 3/8" unfortunately.
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• Recommended 2 Wire LED Marker Lights for 2015 Four Winds Siesta RV
  For your 2015 Four Winds Siesta RV, I recommend the Rectangular LED Trailer Clearance and Side Marker Light with Reflex Reflector- Amber # MCL32ABB and Red # MCL32RBB. These are both 2 wire LED lights that will allow you to add marker lights to your current system without issue. You can simply splice these into your current wiring to add the additional lights you desire. For connection, I recommend # 16-1-1 wire and heat shrink butt connectors # DW05744-10.
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• Replacement Trailer Lights for Shorelandr Boat Trailer
  The Optronics Tall Rectangle Submersible LED Trailer Tail Light, part # STL56RB, should work on your Shoreland'r trailer. The same light for the left side of the trailer is the Optronics Submersible LED Trailer Tail Light, part # STL57RB. We have gotten back many reviews of these lights working just fine on Shoreland'r trailers. I will give you the dimensions of the lights so you can make sure they will fit your trailer. The light is 6-1/16 inches long x 3-5/8 inches wide x 2-1/4 inches...
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• What Self-Tapping Screw Can Be Used with the T-One Vehicle Wiring Harness
  The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118670 you asked from will utilize a self tapping screw like # 101131802. This is the #8 x 1/2" screw.
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• Installing Electric Brakes on a Vehicle Tow Dolly
  You have a 3500 pound axle, with a 4-bolt axle flange, spaced 4” apart each. You also have tires and wheels with a 5 on 4.5 bolt pattern. To put brakes on your West Texas Dolly # WTD-35D you will need a left and right trailer brake kit like the etrailer # AKEBRK-35 rated for 3,500 pounds, and 10” x 2-1/4” brake pads. Mounting bolts are included but nuts and lock washers # BRKH10B are not. If it were me I would purchase the etrailer # AKEBRK-35-SA self adjusting brakes so that I would...
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• Can 2 LED Domed Utility/Multipurpose Lights Light Up a 24 Foot Box Truck
  The utility light # ILL24CB has 36 diodes so it will be on the bright side. Two of them will probably provide a decent amount of light but 3 would be better especially if light is essential. Attaching the lights to the ceiling using a high grade automotive type of double-sided tape would suffice. What I recommend is to use self-taping screws, like # 101131802, so you will not have to drill and then just seal the holes with a sealant like # 0160297. It would be best to attach screws to...
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• Installation of Ground Wire on Tekonsha Plug in Wiring Adapter for 2006 Toyota 4Runner
  The Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Toyota and Lexus # 3040-P does have the separate white ground wire with ring terminal. It is to be connected to a bolt that connects to a bare metal surface. You may want to simply use a sheet metal screw like # 101131802. I've attached a couple videos to assist.
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• Recommended Mounting Hardware For The Optronics Clearance Lights MC44AB1
  For mounting a clearance light I recommend using a few self tapping screws. Preferably a # 10 or # 8 screw like the # 101131802. You will also want some butyl tape # QR59FR, to weatherproof the screw holes. Hardware for these is basically generic and it really comes down to what surface you are mounting to. Optronics does not sell a hardware kit specifically for the # MCL44AB1 or # MCL44RB1.
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