{"id":260719,"date":"2024-10-19T17:16:08","date_gmt":"2024-10-19T17:16:08","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-7371-82011\/"},"modified":"2024-10-25T12:59:29","modified_gmt":"2024-10-25T12:59:29","slug":"bs-7371-82011","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-7371-82011\/","title":{"rendered":"BS 7371-8:2011"},"content":{"rendered":"

This part of BS 7371 specifies requirements for sherardized coatings on iron and steel fasteners and accessories applied by thermal diffusion of zinc powder onto a component\u2019s surface.<\/p>\n

\n

NOTE Hydrogen embrittlement is not induced as a result of this coating process.<\/p>\n<\/blockquote>\n

The coating consists of zinc\/iron alloys, which are subsequently treated using either a zinc phosphate treatment (see BS 7371-9:1996, Type 2) or a suitable substitute treatment similar to those used in electroplating zinc (see BS 7371-3:2009) and mechanical plating (see BS 7371-7:2010). This results in a dust free surface, which, when required, can be lubricated to give controlled torque\/clamping force properties (see BS 7371-2:1993).<\/p>\n

In addition to the requirements in this part of BS 7371, the requirements in BS 7371-1:2009 that are applicable to sherardized coatings apply.<\/p>\n

This part of BS 7371 also specifies requirements for:<\/p>\n

    \n
  1. \n

    the local coating thickness for six grades of coating;<\/p>\n<\/li>\n

  2. \n

    possible types of post treatment;<\/p>\n<\/li>\n

  3. \n

    the assessment of corrosion resistance of unused coated parts when subjected to neutral salt spray testing (see BS EN ISO 9227:2006).<\/p>\n<\/li>\n<\/ol>\n

    PDF Catalog<\/h4>\n\n\n\n\n\n\n
    PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
    11<\/td>\nTable 1\u2003Classification of coating and local coating thickness <\/td>\n<\/tr>\n
    13<\/td>\n\tTable 2\tAdditional thread clearance for mating sherardized ISO metric coarse threads (both mating surfaces coated) <\/td>\n<\/tr>\n
    16<\/td>\nFigure B.1\u2003Measuring area for coating thickness measurement of fasteners <\/td>\n<\/tr>\n
    17<\/td>\n\tTable B.1\tBatch coating mass per unit area and average coating thickness <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

    Coatings on metal fasteners – Specification for sherardized coatings<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    BSI<\/b><\/a><\/td>\n2011<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":260724,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[303,2641],"product_tag":[],"class_list":{"0":"post-260719","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-21-060-01","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\/260719","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\/260724"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=260719"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=260719"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=260719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}