The B series firewall fitting has a 1 inch aluminum ball held in place by 2 stainless steel pressure plates. It has a swivel angle up to 50 degrees from straight and is held to the firewall with 6 #4 screws.
Assembly weighs only 1.0oz-1.3oz ( .06lb-.08lb) depending on ball hole size.
Ball hole sizes available are .125, .188, .218, .240, .250, .260, .330, .375, .438 and .500.
Order example: TTP-125B (.125 ball hole size)
Outstanding quality. Took less than an hour to install. Taped the template to the firewall which made drilling the holes a piece of cake. Used a step drill for the large center hole.
Much smaller than I thought it would be. The included template made installation quick and painless.
Yes, you will need the .188 which is P/N# 05-00957.
Yes, the ball splits in half so you can clamp it over the cable.
The A-920 housing is 1/4" O.D.. You can use the .250" or for a firm grip, the .240" unit to secure it.