Content standard fastener products

Content standard fastener products

Content standard fastener products

Each fastener should involve several aspects of the standards:

 1) The size of standards of fastener products: the basic dimensions specified aspects of the product; threaded products, but also the basic thread size, thread winding, shoulder distance, back the knife slot and chamfer, outer parts of the end of the thread size and other aspects.

 2) fastener product technology standard conditions. Specific and include the following content standards:

 a) fastener product standards of tolerance: tolerance specified product size, form and position tolerance aspects.

 b) fastener machinery performance criteria: product mechanical performance levels specified in the labeling method and the mechanical properties of the content of projects and requirements; some fasteners will be replaced by the contents of the performance or work product materials performance aspects of content.

 c) fastener product standards of surface defects: specify product type and specific requirements for surface defects such aspects.

 d) fastener product standards for surface treatment: specify product type and specific requirements for surface treatment of such aspects.

 e) fastener product testing standards of: performance requirements specified in the above test areas.

 3) The fastener product acceptance inspection, marking and packaging standards: factory acceptance specified product quality level when the sample project eligibility and sampling programs, and methods of product logo and packaging requirements of the content.

 4) The fastener product standards marked methods: specific markers provides a complete and simplified product labeling method aspects.

 5) fasteners other criteria: the standard terminology, such as fasteners, fastener product weight standards.

 1 standard (commonly used is the German standard and American Standard)

 GB (GB) ISO (International Standard)

 DIN (German system) JIS (Japanese Standard)

 ANSI / ASME (AmericanNationalStandardsInstitute-ANSI;

 AmericanSocietyOfMechanicalEngineers-ASME) (American Standard)

 BS (British) IFI = IndustrialFastenerInstitute Industrial Fasteners Association, the American standard BA (British)

 2 thread

 M. MF (metric tooth)

 UNC. (US-coarse)

 UNF (American fine tooth)

 UNEF (United States system of ultra-fine teeth)

 BSW standard Wyeth coarse series, general purpose cylinder thread (inch teeth)

 BSF Standard Wyeth fine tooth series, general purpose cylinder thread (inch teeth)

 finepitchthread fine tooth

 fullthread whole thread

 3 screw-type head

 IHH = indhexhead saw hexagon

 PH = phillips cross slot

 Pan round (pan head)

 Oval countersunk head

 H.W.H.. Hexagon small flange

 H.W.F. hexagonal flange

 CSK salad head (countersunk head)

 Largewafer large flat head

 Bugle Horn Head

 Truss plate headband pad

 Pozi metric shafts

 Serra-tion to spend it under the belt

 FlowerHead flower head

 6-bobesrecess in Plum

 Cuphead Cup first