Here is a look at our 1" Bolt Feedthrough with 1/8" compression fittings, part number 100-002. This is one of our more popular products, and we always have it in stock for a quick delivery. This part is also available with 3/16" and 1/4" compression fittings. Use this style bolt for your crystal sensor height adjustment and ease of installation. For a more detailed view, follow this link to our 1" Baseplate Feedthroughs section.