MADE IN USA! The Original PyroClip(TM) electrical terminals are built to last. (These clips are sometimes called binding posts, beehive connectors, or spring loaded wire posts.) They're available in three sizes: Mini Standard Tall And three types of post configurations: Solder tip Stainless w/solder lug Printed circuit board (PCB) We keep an inventory of the following: Tall, solder-tip, red and black Tall, stainless steel, red and black Standard, stainless steel, red and black Standard, solder-tip, red and black Mini, stainless steel, red and black Mini, printed circuit board, red and black. All other configurations are built-to-order, require lead-time, and can only be ordered by phone. When placing your order, please specify: Quantity Size (mini, standard, tall) Color Post (solder tip, stainless steel, printed circuit board) Thread Size: Standard 10/32, Tall 8/32, and Mini 4/40 Limited quantities of PyroClips available in: Mini-sized yellow and orange Standard-sized orange, yellow, green, blue, grey, and purple Tall-sized yellow Features: Stainless steel construction for strength and corrosion resistance Industrial-strength nylon Includes stainless nut and keps nut Easy-to-release wires that will not pull out Five ignites from a single clip Durable and waterproof Ruggedly designed to handle harsh environments Universal design Specifications: Overall diameter .506 in (12.85 mm) Overall length 1.480 in (37.59 mm) Height above mounting surface .5995 in (15.23 mm) Depth below mounting surface .866 in (22 mm) Mounting hole diameter .315 in (8 mm) Mounting surface thickness .0315 - .1187 in (0.8 - 4.75 mm) Material Stainless steel spring, washer, nut, keps nut Plastic Strength nylon Shipping weight .215 oz (6.1 g) NOTES: Orange; yellow; green; blue; grey; and purple PyroClips are special order and require lead time Colors other than red and black can only be ordered by phone We do not make the tall size clip with a PCB post Bulk pricing available. We recommend ordering a DSL galvanometer to test circuits along with your PyroClips.