Pneumatic Type Union

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Pneumatic Type Union

Q: what parts do Fasteners include: Bolts: A fastener consisting of a head and a screw (with an external thread), which is fitted with a nut for fastening the connection of two parts with through holes. This type of connection is bolted. If the nut is screwed off from the bolt, it is possible to separate the two parts, so the bolt connection is a detachable connection.

Q: High-strength screw standard parts of the quality of what data: Material: Does the chemical composition meet the standard requirements Appearance: Good surface treatment: Does it meet the standard requirements? If 1 and 4 problems, this batch of bolts directly failed,

Q: Bolts and other connection fasteners some points A B C grade what it means: The same standard number! Different grades of bolts, their material is not the same! Just their detection method just the same!

Q: In the fastener industry, 1018 refers to what material: Low carbon steel, can only be used to produce the general screw class, and 102A almost

Q: A194 GR3 is what style fasteners: ASTM A194 is high pressure and, or high temperature conditions with the bolt to match the carbon steel and alloy steel nuts, as GR3 I did not see such a description in the standard

Q: Is it hard to heat the fasteners?: Fasteners are also known as standard parts, which are mainly heat-treated according to the material of the product.

Q: What are all the fasteners?: Of course, there are many categories of fasteners, in short, there are many, many of the fasteners.

Q: Fasteners are used in what areas?: In the international arena, fasteners according to the use of the field can be divided into two categories, one is the general use of fasteners, the other is aerospace fasteners.

Q: Will the stainless steel fastening standard parts of the national standard code and name?: Because the fastener is a standard part, so the size of stainless steel fasteners and ordinary fastener size is the same, other standard GB / T 5267.4-2009 fastener surface treatment corrosion-resistant stainless steel passivation treatment

Q: Our company to purchase a number of fasteners to see when the CAD drawings in the technical requirements I do not know the specific to write those content: 1, the product used by the material (the available material is too much to see what your company to ask) 2, the accuracy of the thread (bolt type of external thread is generally 6g, nut class internal thread is generally 6h) 3, surface treatment Stainless steel materials generally do not do treatment, carbon steel, color, galvanized, Dacromet, nickel, chrome, etc.) 4, product tolerances before the surface treatment or surface treatment of the above is the standard parts of the standard, But also depends on the actual use, we must deal with the landlord.

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