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| Title | The date | Reading times | |||||
 Enterprise information ‖ Screw head shapes |
2015-05-07 | 55 | |||||
(a) pan, (b) dome (button), (c) round, (d) truss (mushroom), (e) flat (countersunk), (f) oval (raised head)
Pan head A low disc with chamfered outer edge
Button or dome head ... | |||||||
| Enterprise information ‖ Types of screw drives |
2015-05-07 | 86 | |||||
| Main article: List of screw drives
Common types External types External drives are characterized by a female tool and a male fastener. A screw drive is the system used to turn a screw. At ... | |||||||
| Enterprise information ‖ Thread standards |
2015-05-07 | 52 | |||||
| Main article: Screw thread
There are many systems for specifying the dimensions of screws, but in much of the world the ISO metric screw thread preferred series has displaced the many older sys... | |||||||
| Industry information ‖ Screw |
2011-07-16 | 165 | |||||
| A screw, or bolt, is a type of fastener characterized by a helical ridge, known as an external thread or just thread, wrapped around a cylinder. Some screw threads are designed to mate with a compleme... | |||||||
| Industry information ‖ Differentiation between bolt and screw |
2011-07-14 | 185 | |||||
| There is no universally accepted distinction between a screw and a bolt. Machinery's Handbook describes the distinction as follows:
A bolt is an externally threaded fastener designed for insertion ... | |||||||
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add.：No.158 Jin xue Rd, Malu Industrial Park,Shanghai traffi：021-69955479/69955480 traffi： Time
ICP No.：Shanghai ICP No. 10042274