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what parts do Fasteners include
- Screw: also by the head and screw two parts of a class of fasteners, according to the use can be divided into three categories: machine screws, set screws and special purpose screws. The machine screw is mainly used for a fastening screw hole part, with a through hole between the parts of the fastening connection, no nut matching (this connection is called the screw connection, also belong to the detachable connection; Used in conjunction with nuts for fastening connections between two parts with through holes.) The locking screw is mainly used to hold the relative position between the two parts. Special purpose screws such as rings are used for lifting parts.s
What fasteners are manufacturers in China?
- (13) Ningbo Xingyi Fasteners Co., Ltd. (14) Fu Ao Auto Parts Co., Ltd. Fasteners Branch;(15) Dongfeng Automobile Fastener Co., Ltd.s
High-strength screw standard parts of the quality of what data
- The other can be based on the corresponding use of the environment, to decide whether to accept or not accepted.s
what are the Fasteners Selection Specification
- Referred to the selection must be selected in the national standard parts, otherwise the changeability does not exist. Speaking of norms nothing less than the following: function according to national standards (strength, rust, shape ....);s
Bolts and other connection fasteners some points A B C grade what it means
- Grade is not the same, the tolerance range is not the same, A-level tolerance of the smallest, C-class tolerance of the largests
A194 GR3 is what style fasteners
- A194 American standard I know is the US system, but now do not understand is GR3 in the end is what it meanss
What are the technical requirements for fasteners?
- Name: Bolt nut flat cushion pad - (should be written in the national label) Drawing No .: Ask the engineer Material: Q235 Q235 steel spring steel ---- ordinary 35 steel 35 steel spring steel ---- high strength ratio: according to the actual Drawing quality: check the information or do not fill the level: 4.8 5 200HV 65MN ------ ordinary 8.8 8 300HV 65MN ------ high strength specifications: write their owns
How to check the quality of fasteners
- If it is important, random to do one or two destructive pull test, their own press with a simple tooling, pay attention to safety, if their own, to the physical and chemical test units or heat treatment of the brothers can do. You can also go to the supplier to monitor the sampling of such a similar test (contract agreed).s
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