Flashpoint Super Clamp - Triangle Wedge - Set of 4 Accessory Screws - Flashpoint Spigot (SKU: FPXSP03). Flashpoint Super Clamp with Flush Mount 1/4"X20 / 3/8" AntiTwist Stud. The Flashpoint Super Clamp can be used to mount lights and accessories on virtually any bar, rail, divider, pole, or beam.