Topduo - above-rafter insulation screw \u00d8 8 mm.<\/p>\n
Topduo<\/strong> is a timber construction screw intended for every above-rafter insulation system<\/strong>: it passes through counter batten and insulation layer and anchors in the rafter. Its high withdrawal resistance also suits many other timber connections.<\/p>\n Application<\/strong> Technical data<\/strong> Screw point<\/strong> Choosing the length<\/strong> Screw for every above-rafter insulation system. \u00d8 8 mm, lengths 165-435 mm, ETA-11\/0024.<\/p>\n","protected":false},"featured_media":140,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[45],"product_tag":[],"class_list":["post-556","product","type-product","status-publish","has-post-thumbnail","product_cat-construction-screws","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","featured","taxable","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/product\/556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/comments?post=556"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/media\/140"}],"wp:attachment":[{"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/media?parent=556"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/product_brand?post=556"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/product_cat?post=556"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/fixwoodsystem.pl\/en\/wp-json\/wp\/v2\/product_tag?post=556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Fixing above-rafter insulation and counter battens on pitched roofs, roof build-ups with mineral wool and PIR boards, other timber connections requiring deep embedment.<\/p>\n
Cylinder head \u00b7 drive TX 40 \u00b7 diameter \u00d8 8 mm \u00b7 lengths 165-435 mm \u00b7 steel with special coating \u00b7 ETA-11\/0024<\/strong><\/p>\n
Reduced driving torque, reduced splitting effect and better bite - this matters at lengths above 300 mm, where an ordinary screw starts to wander off axis.<\/p>\n
Length follows from counter batten plus insulation plus the required embedment in the rafter. Driving angle and spacings depend on roof loading - all in ETA-11\/0024 and the product datasheet. This is where it is easiest to be one size out.<\/p>\n","protected":false},"excerpt":{"rendered":"