AMF Catalogue Standard Clamping Elements Page 88
Commercial customer offer**Top sellers from AMF Spannsysteme
amf-t-slot bolts DIn 787 and no. 787 are manufactured within tensile strength classes 8.8, 10.9 and 12.9. amf-studs DIn 6379 and no. 6379 are manufactured within tensile strength classes 8.8, 10.9 and 12.9. amf-hex agon nuts DIn 6330B, DIn 6331 and no. 6334 are manufactured within tensile strength class 10. the individual characteristics in tensile strength classes 8.8, 10.9 and 12.9 are defined as follows: 8. = minimum tensile strength = 800 n/mm 2 .8 = minimum yield point (80% of min. tensile strength) = 640 n/mm 2 10. = minimum tensile strength = 1000 n/mm 2 .9 = minimum yield point (90% of min. tensile strength) = 900 n/mm 2 12. = minimum tensile strength = 1200 n/mm 2 .9 = minimum yield point (90% of min. tensile strength) = 1080 n/mm 2 strength of hex agon nuts: the individual characteristic in tensile strength class 10. defined is: 10. = minimum test strength = 1000 n/mm² this test strength is equal to the minimum tensil strength of a screw which can be charged to its minimum breaking load, when matched with the respective nut. A normal screw / nut combination for load transmission would be a nut of tensil strength class “8” for 8.8 screws. For manufacturing of this nut, a minor quality material than for 8.8 screws neccessary could be used, since lower tensions occur in the nut, compared with screw. But since nuts require a high wear resistance in addition to sufficient strength, we manufacture them of the same material as our 8.8-screws. this results with tensile strength class “10” for nuts. Clamping forces depending on lubrication. test results revealed clearly: AMF heavy duty thread paste no. 6339 onefold tightening, dry Clamping force tenfold tightening, dry frequent use of non-greased bolt/nut connections in fixtures will reduce clamping forces consider-ably at still constant torques, with additional wear involved! Torque We therefore recommend the AMF-Heavy-duty thread paste no. 6339. It has a synergetic acting combination of highly active white solid lubrications and is resistant to heat and wash-off. It provides optimal sliding characteristics for increased clamping force and improved thread life. Subject to technical alterations. 88 Standard clamping elementS ANDREAS MAIER GmbH & Co. KG ∙ Phone: +49 711 5766-0 ∙ Web: www.amf.de
172 Pages | Valid until 12/2026 | Previous page | Next page
Choose your language
Legal issues
The manufacturer is exclusively responsible for the content, price and article details of the products and offers presented in the catalogues. Subject to technical and optical changes by the manufacturer and errors excepted.
Request form for special products
The ToolTeam® Procurement Service
Are you looking for products that are shown in the catalogue but cannot be purchased directly online?Our procurement service will be pleased to make you a non-binding and individual offer.