{"id":3312,"date":"2025-07-31T13:31:13","date_gmt":"2025-07-31T13:31:13","guid":{"rendered":"https:\/\/discover.restek.com\/?p=3312"},"modified":"2025-12-09T00:39:48","modified_gmt":"2025-12-09T00:39:48","slug":"what-size-threads-are-on-the-end-fittings-of-my-hplc-column","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/fr\/faq-de\/gnot5075\/what-size-threads-are-on-the-end-fittings-of-my-hplc-column","title":{"rendered":"What size threads are on the end fittings of my HPLC column?"},"content":{"rendered":"\n<p>Fittings on all HPLC and UHPLC columns have 10-32 threads. However, you will find that fittings and columns from Waters, Rheodyne, SSI, and Gasukura have different seating depths, as shown below, even though the threads are still 10-32. Restek\u2019s&nbsp;universal 10-32 PEEK column connectors&nbsp;and new&nbsp;EXP fittings&nbsp;will accommodate any of these configurations.<\/p>\n\n\n\n<p>Fitting styles differ among various manufacturers, but all HPLC and UHPLC column fittings have 10-32 threads.<\/p>\n\n\n<style>.kb-table-container3312_2b4a2d-b9{overflow-x:auto;}.kb-table-container .kb-table3312_2b4a2d-b9 th{padding-top:var(--global-kb-spacing-xxs, 0.5rem);padding-right:var(--global-kb-spacing-xxs, 0.5rem);padding-bottom:var(--global-kb-spacing-xxs, 0.5rem);padding-left:var(--global-kb-spacing-xxs, 0.5rem);text-align:center;}.kb-table-container .kb-table3312_2b4a2d-b9 caption{text-align:center;}.kb-table-container .kb-table3312_2b4a2d-b9 td{padding-top:var(--global-kb-spacing-xxs, 0.5rem);padding-right:var(--global-kb-spacing-xxs, 0.5rem);padding-bottom:var(--global-kb-spacing-xxs, 0.5rem);padding-left:var(--global-kb-spacing-xxs, 0.5rem);text-align:left;}<\/style><div class=\"kb-table-container kb-table-container3312_2b4a2d-b9 wp-block-kadence-table\"><table class=\"kb-table kb-table3312_2b4a2d-b9\">\n<tr class=\"kb-table-row kb-table-row3312_e7af51-f7\">\n<td class=\"kb-table-data kb-table-data3312_1224e5-f4\">\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNOT3395-04.jpg\" alt=\"Parker Fitting\" class=\"wp-image-3165\" title=\"-\"><\/figure>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_529ff9-10\">\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNOT3395-05.jpg\" alt=\"Valco Fitting\" class=\"wp-image-3171\" title=\"-\"><\/figure>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_bfeb63-ef\">\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNOT3395-06.jpg\" alt=\"Waters Fitting\" class=\"wp-image-3177\" title=\"-\"><\/figure>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_f89630-b4\">\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNOT3395-07.jpg\" alt=\"Rheodyne Fitting\" class=\"wp-image-3183\" title=\"-\"><\/figure>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_599393-82\">\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/discover.restek.com\/wp-content\/uploads\/figure-article-GNOT3395-08.jpg\" alt=\"Swagelok Parker A-Lok Fitting\" class=\"wp-image-3189\" title=\"-\"><\/figure>\n\n<\/td>\n<\/tr>\n\n<tr class=\"kb-table-row kb-table-row3312_1f302f-b6\">\n<td class=\"kb-table-data kb-table-data3312_424907-2d\">\n\n<p class=\"has-text-align-center\">Parker<\/p>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_cb5f89-14\">\n\n<p class=\"has-text-align-center\">Valco<\/p>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_8b5e36-27\">\n\n<p class=\"has-text-align-center\">Waters<\/p>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_615672-bc\">\n\n<p class=\"has-text-align-center\">Rheodyne<\/p>\n\n<\/td>\n\n<td class=\"kb-table-data kb-table-data3312_de6228-d6\">\n\n<p class=\"has-text-align-center\">Swagelok<br>Parker A- Lok<\/p>\n\n<\/td>\n<\/tr>\n<\/table><\/div>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fittings on all HPLC and UHPLC columns have 10-32 threads. However, you will find that fittings and columns from Waters, Rheodyne, SSI, and Gasukura have different seating depths, as shown below, even though the threads are still 10-32. Restek\u2019s&nbsp;universal 10-32 PEEK column connectors&nbsp;and new&nbsp;EXP fittings&nbsp;will accommodate any of these configurations. Fitting styles differ among various&#8230;<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[802],"tags":[2682,2701],"industries-application":[],"post-badge":[],"resource-type":[],"product-library":[],"resource-technique":[],"hf_cat_post":[625],"ppma_author":[414],"class_list":["post-3312","post","type-post","status-publish","format-standard","hentry","category-faq-de","tag-faq-hplc-and-uhplc","tag-faq-lc-hardware"],"acf":[],"taxonomy_info":{"category":[{"value":802,"label":"FAQ"}],"post_tag":[{"value":2682,"label":"FAQ: HPLC and UHPLC"},{"value":2701,"label":"FAQ: LC Hardware"}]},"featured_image_src_large":false,"author_info":{"display_name":"Restek Corporation","author_link":"https:\/\/discover.restek.com\/fr\/author\/restek-corporation\/"},"comment_info":0,"category_info":[{"term_id":802,"name":"FAQ","slug":"faq-de","term_group":0,"term_taxonomy_id":802,"taxonomy":"category","description":"","parent":0,"count":271,"filter":"raw","cat_ID":802,"category_count":271,"category_description":"","cat_name":"FAQ","category_nicename":"faq-de","category_parent":0}],"tag_info":[{"term_id":2682,"name":"FAQ: HPLC and UHPLC","slug":"faq-hplc-and-uhplc","term_group":0,"term_taxonomy_id":2682,"taxonomy":"post_tag","description":"Browse frequently asked questions for HPLC and UHPLC products.","parent":0,"count":61,"filter":"raw"},{"term_id":2701,"name":"FAQ: LC Hardware","slug":"faq-lc-hardware","term_group":0,"term_taxonomy_id":2701,"taxonomy":"post_tag","description":"Browse frequently asked questions for LC hardware.","parent":0,"count":8,"filter":"raw"}],"authors":[{"term_id":414,"user_id":11,"is_guest":0,"slug":"restek-corporation","display_name":"Restek Corporation","avatar_url":{"url":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg","url2x":"https:\/\/discover.restek.com\/wp-content\/uploads\/Restek_Favicon_300x300.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/3312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/comments?post=3312"}],"version-history":[{"count":5,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/3312\/revisions"}],"predecessor-version":[{"id":71331,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/posts\/3312\/revisions\/71331"}],"wp:attachment":[{"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/media?parent=3312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/categories?post=3312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/tags?post=3312"},{"taxonomy":"industries-application","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/industries-application?post=3312"},{"taxonomy":"post-badge","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/post-badge?post=3312"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/resource-type?post=3312"},{"taxonomy":"product-library","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/product-library?post=3312"},{"taxonomy":"resource-technique","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/resource-technique?post=3312"},{"taxonomy":"hf_cat_post","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/hf_cat_post?post=3312"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/discover.restek.com\/fr\/wp-json\/wp\/v2\/ppma_author?post=3312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}