{"id":3152,"date":"2025-08-10T23:34:24","date_gmt":"2025-08-10T23:34:24","guid":{"rendered":"https:\/\/quantongfastener.com\/?post_type=product&p=3152"},"modified":"2025-08-10T23:34:24","modified_gmt":"2025-08-10T23:34:24","slug":"stainless-steel-hexagon-socket-countersunk-head-cap-bolt-din-7991-2","status":"publish","type":"product","link":"https:\/\/quantongfastener.com\/fr\/produit\/stainless-steel-hexagon-socket-countersunk-head-cap-bolt-din-7991-2\/","title":{"rendered":"Boulon \u00e0 t\u00eate frais\u00e9e \u00e0 six pans creux en acier inoxydable DIN 7991"},"content":{"rendered":"
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Nom du produit<\/td>\nBoulon \u00e0 t\u00eate frais\u00e9e \u00e0 douille hexagonale<\/td>\n<\/tr>\n
Taille<\/td>\nM3-24<\/td>\n<\/tr>\n
Longueur<\/td>\n6-100 mm ou selon les besoins<\/td>\n<\/tr>\n
Grade<\/td>\nSS304\/SS316<\/td>\n<\/tr>\n
Mat\u00e9riau<\/td>\nAcier inoxydable<\/td>\n<\/tr>\n
Traitement de surface<\/td>\nPlaine<\/td>\n<\/tr>\n
Standard<\/td>\nDIN\/ISO<\/td>\n<\/tr>\n
Certificat<\/td>\nISO 9001<\/td>\n<\/tr>\n
\u00c9chantillon<\/td>\n\u00c9chantillons gratuits<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Utilisation :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Sur la surface du trou de montage de la pi\u00e8ce de liaison, une douille ronde conique \u00e0 90 degr\u00e9s est usin\u00e9e, et la t\u00eate de la vis \u00e0 m\u00e9taux plate se trouve dans cette douille ronde, qui est au m\u00eame niveau que la surface de la pi\u00e8ce de liaison. Les vis \u00e0 m\u00e9taux plates sont \u00e9galement utilis\u00e9es dans certains cas avec des vis \u00e0 m\u00e9taux plates \u00e0 t\u00eate ronde. Ce type de vis est plus beau et est utilis\u00e9 dans les endroits o\u00f9 la surface peut permettre une l\u00e9g\u00e8re protub\u00e9rance.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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\"d808c71bb38dd267a2f3d3663ba606e\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"d808c71bb38dd267a2f3d3663ba606e\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Comment l'utiliser ?
\nLa plupart des vis \u00e0 t\u00eate frais\u00e9e sont utilis\u00e9es dans des endroits o\u00f9 la surface de la pi\u00e8ce ne peut pas \u00eatre relev\u00e9e apr\u00e8s l'installation. Il existe deux types de pi\u00e8ces \u00e0 fixer. L'\u00e9paisseur de la t\u00eate, apr\u00e8s le serrage de la vis, une partie du filet de la vis n'entre toujours pas dans le trou filet\u00e9. Dans ce cas, la vis \u00e0 t\u00eate frais\u00e9e peut certainement \u00eatre serr\u00e9e.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"d808c71bb38dd267a2f3d3663ba606e\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"d808c71bb38dd267a2f3d3663ba606e\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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\"d808c71bb38dd267a2f3d3663ba606e\"<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Le c\u00f4ne de la t\u00eate de la vis \u00e0 t\u00eate frais\u00e9e a un angle de 90\u00b0. Habituellement, l'angle du sommet d'un foret nouvellement achet\u00e9 est de 118 \u00b0 -120 \u00b0. Certains travailleurs non form\u00e9s ne connaissent pas cette diff\u00e9rence d'angle et utilisent souvent un al\u00e9sage de 120\u00b0, ce qui a pour cons\u00e9quence que les vis \u00e0 t\u00eate frais\u00e9e ne sont pas tendues lors du serrage des vis \u00e0 t\u00eate frais\u00e9e, mais qu'une ligne appara\u00eet au bas de la t\u00eate de la vis, ce qui est l'une des raisons pour lesquelles les vis dites \u00e0 t\u00eate frais\u00e9e ne peuvent pas \u00eatre serr\u00e9es.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Pr\u00e9cautions d'emploi :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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1) La conicit\u00e9 du trou d'al\u00e9sage doit \u00eatre de 90\u00b0. Pour le garantir, il vaut mieux qu'il soit inf\u00e9rieur \u00e0 90\u00b0, mais pas sup\u00e9rieur \u00e0 90\u00b0. Il s'agit l\u00e0 d'une astuce essentielle.
\n2) Si l'\u00e9paisseur de la t\u00f4le est inf\u00e9rieure \u00e0 l'\u00e9paisseur de la t\u00eate de la vis \u00e0 t\u00eate frais\u00e9e, vous pouvez changer la vis plus petite, ou plut\u00f4t agrandir le trou plus petit que l'agrandir de sorte que le diam\u00e8tre du trou inf\u00e9rieur devienne plus grand et que la pi\u00e8ce ne soit pas serr\u00e9e.
\n3) S'il y a plusieurs trous de vis frais\u00e9s sur la pi\u00e8ce, il faut \u00eatre plus pr\u00e9cis lors de l'usinage. Une fois que la perceuse est de travers, il est difficile de voir l'assemblage, mais elle peut \u00eatre serr\u00e9e tant que l'erreur est petite, car lorsque la vis n'est pas tr\u00e8s serr\u00e9e Large (environ pas plus de 8mm), lorsqu'il y a une erreur dans la distance du trou, la t\u00eate de la vis sera d\u00e9form\u00e9e \u00e0 cause de la force lors du serrage, ou bien elle sera serr\u00e9e.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Questions courantes sur l'acier inoxydable :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Q : Pourquoi l'acier inoxydable est-il magn\u00e9tique ?
\nR : L'acier inoxydable 304 appartient \u00e0 la cat\u00e9gorie des aciers inoxydables aust\u00e9nitiques. L'aust\u00e9nite est partiellement ou l\u00e9g\u00e8rement transform\u00e9e en martensite au cours du travail \u00e0 froid. La martensite est magn\u00e9tique, de sorte que l'acier inoxydable est non magn\u00e9tique ou faiblement magn\u00e9tique.
\nQ : Comment identifier les produits en acier inoxydable authentiques ?
\nR : 1. le test de la potion sp\u00e9ciale de l'acier inoxydable, s'il ne change pas de couleur, il s'agit d'un acier inoxydable authentique.
\n2. Soutenir l'analyse de la composition chimique et l'analyse spectrale.
\n3. Test de fum\u00e9e pour simuler l'environnement d'utilisation r\u00e9el.
\nQ : Quels sont les aciers inoxydables les plus couramment utilis\u00e9s ?
\nA : 1.SS201, adapt\u00e9 \u00e0 une utilisation en milieu sec, facile \u00e0 rouiller dans l'eau.
\n2. SS304, environnement ext\u00e9rieur ou humide, forte r\u00e9sistance \u00e0 la corrosion et aux acides.
\n3. SS316, molybd\u00e8ne ajout\u00e9, plus grande r\u00e9sistance \u00e0 la corrosion, particuli\u00e8rement adapt\u00e9 \u00e0 l'eau de mer et aux milieux chimiques.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Cinq avantages de l'acier inoxydable :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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1. Duret\u00e9 \u00e9lev\u00e9e, pas de d\u00e9formation -- La duret\u00e9 de l'acier inoxydable est plus de 2 fois sup\u00e9rieure \u00e0 celle du cuivre, plus de 10 fois sup\u00e9rieure \u00e0 celle de l'aluminium, le traitement est difficile et le processus de production est compliqu\u00e9.
\n2. durable et antirouille - fabriqu\u00e9 en acier inoxydable, la combinaison du chrome et du nickel cr\u00e9e une couche antioxydante \u00e0 la surface du mat\u00e9riau, qui joue le r\u00f4le de la rouille.
\n3. respectueux de l'environnement, non toxique et non polluant --- L'acier inoxydable est reconnu comme un mat\u00e9riau sanitaire, s\u00fbr, non toxique et r\u00e9sistant aux acides et aux alcalis. Il n'est pas rejet\u00e9 dans la mer et ne pollue pas l'eau du robinet.
\n4. Beaux, de haute qualit\u00e9, pratiques --- Les produits en acier inoxydable sont populaires dans le monde entier. La surface est argent\u00e9e et blanche. Apr\u00e8s dix ans d'utilisation, il ne rouillera jamais. Tant que vous l'essuyez avec de l'eau propre, il sera propre et beau, aussi brillant que neuf.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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Avantages du produit :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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  1. Usinage de pr\u00e9cision<\/strong><\/li>\n<\/ol>\n

    \u2606 Mesurer et traiter \u00e0 l'aide de machines-outils de pr\u00e9cision et d'outils de mesure dans des conditions environnementales strictement contr\u00f4l\u00e9es.<\/p>\n

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    1. Acier au carbone de haute qualit\u00e9 (35#\/45#)<\/strong><\/li>\n<\/ol>\n

      \u2606 Longue dur\u00e9e de vie, faible production de chaleur, grande duret\u00e9, grande rigidit\u00e9, faible bruit, grande r\u00e9sistance \u00e0 l'usure et autres caract\u00e9ristiques.<\/p>\n

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      1. Rentabilit\u00e9<\/strong><\/li>\n<\/ol>\n

        \u2606 L'utilisation d'acier au carbone de haute qualit\u00e9, apr\u00e8s un traitement et un formage de pr\u00e9cision, am\u00e9liore consid\u00e9rablement l'exp\u00e9rience de l'utilisateur.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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        Traitement de surface :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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        1. NOIR<\/strong><\/li>\n<\/ol>\n

          Le noir est une m\u00e9thode courante de traitement thermique des m\u00e9taux. Le principe est de cr\u00e9er un film d'oxyde sur la surface du m\u00e9tal pour isoler l'air et pr\u00e9venir la rouille. Le noircissement est une m\u00e9thode courante de traitement thermique des m\u00e9taux. Le principe consiste \u00e0 cr\u00e9er un film d'oxyde sur la surface du m\u00e9tal afin d'isoler l'air et de pr\u00e9venir la rouille.<\/p>\n

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          1. ZINC<\/strong><\/li>\n<\/ol>\n

            \u2606 L'\u00e9lectro-galvanisation est une technologie traditionnelle de traitement des rev\u00eatements m\u00e9talliques qui conf\u00e8re aux surfaces m\u00e9talliques une r\u00e9sistance de base \u00e0 la corrosion. Les principaux avantages sont une bonne soudabilit\u00e9 et une r\u00e9sistance de contact adapt\u00e9e. En raison de ses bonnes propri\u00e9t\u00e9s de lubrification, le cadmiage est couramment utilis\u00e9 dans l'aviation, l'a\u00e9rospatiale, la marine et les produits radio et \u00e9lectroniques. La couche de placage prot\u00e8ge le substrat d'acier \u00e0 la fois contre la protection m\u00e9canique et chimique, de sorte que sa r\u00e9sistance \u00e0 la corrosion est bien meilleure que celle du placage de zinc.<\/p>\n

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            1. HDG<\/strong><\/li>\n<\/ol>\n

              Les principaux avantages sont une bonne soudabilit\u00e9 et une r\u00e9sistance de contact appropri\u00e9e. En raison de ses bonnes propri\u00e9t\u00e9s de lubrification, le cadmiage est couramment utilis\u00e9 dans l'aviation, l'a\u00e9rospatiale, la marine et les produits radio et \u00e9lectroniques. La couche de placage prot\u00e8ge le substrat d'acier \u00e0 la fois contre la protection m\u00e9canique et chimique, de sorte que sa r\u00e9sistance \u00e0 la corrosion est bien meilleure que celle du zingage. Le zinc par immersion \u00e0 chaud pr\u00e9sente une bonne r\u00e9sistance \u00e0 la corrosion, une protection sacrificielle des substrats en acier, une grande r\u00e9sistance aux intemp\u00e9ries et \u00e0 l'\u00e9rosion par l'eau sal\u00e9e. Il convient aux usines chimiques, aux raffineries et aux plates-formes d'exploitation c\u00f4ti\u00e8res et offshore.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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              Param\u00e8tre du produit :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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              NORME DIN 7991<\/p>\n

              \"cp1\"<\/a>\u00a0\"cp2\"<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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              NOTRE PAQUET :<\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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              1. Sacs de 25 kg ou de 50 kg.
              \n2. sacs avec palette.
              \n3. Cartons de 25 kg ou cartons avec palette.
              \n4. Emballage selon la demande du client<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

              Quantit\u00e9 minimale de commande : 1000PCS<\/p>\n

              EMBALLAGE : SAC\/BO\u00ceTE AVEC PALETTE<\/p>\n

              PORT:TIANJIN\/QINGDAO\/SHANGHAI\/NINGBO<\/p>\n

              LIVRAISON : 5-30 JOURS SUR QTY<\/p>\n

              PAIEMENT : T\/T\/LC<\/p>\n

              Capacit\u00e9 d'approvisionnement : 500 TONNES PAR MOIS<\/p>\n

               <\/p>\n

                \n
              • Prix FOB :<\/em>US $0.5 - 9 999 \/ Pi\u00e8ce<\/li>\n
              • Quantit\u00e9 minimale de commande :<\/em>100 pi\u00e8ces\/pi\u00e8ces<\/li>\n
              • Capacit\u00e9 d'approvisionnement :<\/em>10000 pi\u00e8ces par mois<\/li>\n<\/ul>","protected":false},"featured_media":3156,"template":"","meta":{"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"product_brand":[],"product_cat":[34],"product_tag":[],"class_list":{"0":"post-3152","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-hexagon-socket-bolts","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple","12":"entry","13":"content-bg","14":"loop-entry"},"yoast_head":"\nStainless Steel Hexagon Socket Countersunk Head Cap Bolt DIN 7991 - Quantong Fastener<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/quantongfastener.com\/fr\/produit\/stainless-steel-hexagon-socket-countersunk-head-cap-bolt-din-7991-2\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stainless Steel Hexagon Socket Countersunk Head Cap Bolt DIN 7991 - 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