Fastener includes normally the following 12 kinds of spare partses

1. bolt: Pretext ministry and screw (the cylinder of the whorl outside containing) a kind of fastener that two parts form, need to cooperate with nut, use two at tightening solid to join to contain the part of via. This kind joins way says bolt joins. If issue nut from bolt top spin, have can make space of these two spare partses, reason bolt joins is to be attributed to can ravel join.

2. snail column: Those who do not have the head, only both ends all a kind of fastener of besides whorl. When joining, its one aspect of the matter is necessary to come back to contain inside in the spare parts of whorl aperture, another end crosses the part that contains via in, next screw on nut, these two spare partses tighten even if firm joins to see collectivity. This kind joins means calls snail column to join, also be to be attributed to can ravel join. Principal use at be being joined one of spare partses ply bigger, request is tectonic and compact, or because ravel again and again, unfavorable the situation that chooses bolt to join.

3. bolt: Also be a kind of fastener that by the head and screw two parts form, can divide by good it is 3 kinds: Decide bolt and special good bolt machine bolt, closely. Machine bolt is principal the part that is used at to decide whorl aperture closely, the close firm between the part that contains via with joins, do not need nut to cooperate (this kind joins means calls bolt to join, also be attributed to can ravel join; also can cooperate with nut, the close firm that is used between two parts that contain via joins. ) decide bolt closely principal use at securing the relative position between two spare partses. Special good bolt has rings bolt to wait to be used for hoisting spare parts for example.

4. nut: Contain inside whorl aperture, appearance is shown normally show for flat form of 6 corner post, also have submit form of flat square column or oblate column form, column of cooperative bolt, snail or machine bolt, use at tightening solid to join two spare partses, make become a collectivity.

5. attacks bolt oneself: As similar as machine bolt, but the whorl on screw attacks bolt to use whorl oneself for appropriative. Use at tightening solid to join two small metal component part, make become a collectivity, the need on component part makes an alveolus beforehand, because this kind of bolt has taller hardness, can come back directly the Kong Zhong of component part, make echo is formed in component part inside whorl. This kind joins means also is to be attributed to can ravel join.

6. Mu Luo nails: Also be as similar as machine bolt, but the whorl on screw uses Luo Wen for appropriative wood bolt, can come back directly woodiness component (or spare parts) in, use at taking the metal of via (or metalloid) spare parts and a woodiness member close firm join together. This kind joins also is to be attributed to can ravel join.

7. gasket: Appearance shows a kind of oblate and annular fastener. The supportive face of park bolt, bolt or nut and join between spare parts appearance, rising to increase to be joined the appearance outside spare parts feeling is accumulated, drop unit area pressure and maintain appearance of spare parts be joininged; of not damaged effect another kind of stretch gasket, still can remove obstruct nut to answer loose effect.

8. back-up ring: It is for installing in the axial chamfer of machine, equipment or aperture chamfer, removing obstruct axis to go up or the spare parts on aperture orders about mobile effect.

9. sells: Principal for the spare parts fixed position is used, some also can join for the spare parts, retaining element, transfer power or lock up those who decide other fastener to use.

10. rivet: A kind of fastener that by the head and hammer lever two parts form, the part that uses two at tightening solid to join to take via (or component part) , make become a collectivity. This kind joins means calls rivet to join, abbreviation riveting. Belong to with be no good ravel join. Because want the space of two spare partses that makes join together, be necessary to damage the rivet on the spare parts.

11. combines and join deputy: Combine it is a kind of fastener that shows combination provides, if Jiang Mou is planted machine bolt (or bolt, self-confessed bolt) with smooth gasket (or spring gasket, locking gasket) assorted supply; joins deputy show Jiang Mou is planted a kind of fastener of special bolt, nut and supply of combination of washerbed down the livestock, if steel construction uses high strength big bolt of 6 horn head joins deputy.

12. solder nails: Because of light energy and nailhead (or without nailhead) the alien fastener that form, with solder method secures him join in a spare parts (or component part) above, so that undertake with other part again,join.




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