{"id":259495,"date":"2024-10-19T17:10:55","date_gmt":"2024-10-19T17:10:55","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-78421996\/"},"modified":"2024-10-25T12:51:22","modified_gmt":"2024-10-25T12:51:22","slug":"bs-78421996","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-78421996\/","title":{"rendered":"BS 7842:1996"},"content":{"rendered":"

This British Standard specifies the coatings, dimensions, materials, lubrication and performance requirements for bolts, screws and studs with a pre-applied sealing feature incorporated into the thread, when tested at a temperature between 15 \u00b0C and 30 \u00b0C.<\/p>\n

It applies to bolts, screws and studs:<\/p>\n

    \n
  1. with ISO metric coarse pitch M4 to M24 threads conforming to BS 3643 : Part 2 : 1981;<\/li>\n
  2. with specific strength requirements conforming to either BS 6104 : Part 3 : 1981, BS 6105 : 1981 or BS EN 20898-1 : 1992, as appropriate;<\/li>\n
  3. with threads of tolerance class 6g or 4h conforming to BS 3643 : Part 2 : 1981;<\/li>\n
  4. for application into a mating component with a thread of tolerance class 6H conforming to BS 3643 : Part 2 : 1981;<\/li>\n
  5. for use within the temperature range – 50 \u00b0C to + 150 \u00b0C.<\/li>\n<\/ol>\n

    The following are not covered in the scope of this standard:<\/p>\n

      \n
    1. performance at temperatures outside the operating range;<\/li>\n
    2. performance of bolts, screws and studs for which a lubricated or protective coating is not permissible;<\/li>\n
    3. performance of taper threaded components.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

      Bolts, screws and studs with pre-applied thread sealing feature incorporated into the thread<\/b><\/p>\n\n\n\n\n
      Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
      BSI<\/b><\/a><\/td>\n1996<\/td>\n10<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":259499,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[304,2641],"product_tag":[],"class_list":{"0":"post-259495","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-21-060-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/259495","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/259499"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=259495"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=259495"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=259495"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}