Fasteners: Square Head & Square Set Screw

Fasteners: Square Head & Square Set Screw

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Loading Port:: Ningbo

Payment Terms:: TT OR LC

Min Order Qty:: 100000 pc

Supply Capability:: 10000000 pc/month

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Quick Details

Place of Origin: Zhejiang, China (Mainland)
Brand Name: CMAX

Packaging & Delivery

Packaging Details:	box,carton,pallet
Delivery Detail:	30days or advance

Specifications

Thread forming screws

Material:Steel or stainless steel
According to drawing

1,Products Detailes
Products	bolt,screw,nut,washer,pin,rivet and non-standard fastener
Size	Standard and Non-standard according to drawing or samples
Machines	auto pressing machines, automatic heading machine, cold header high-precision surface grinder machine, involantary grinder machines,Digital Micro Vickers Hardness tester, Electrolytic metrical thickness gauge, Vision Measuring Machine,Fischer Scope X-ray Thickness Gauge and so on
Material	1.Stainless Steel: SS201, SS303, SS304, SS316, SS410, SS420
	2,Steel:C45(K1045), C46(K1046),C20
	3.Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58),
	C27200CuZn37), C28000(CuZn40)
	4.Bronze: C51000, C52100, C54400, etc
	5.Iron: 1213, 12L14,1215
	6.Aluminum: Al6061, Al6063 etc
	7,.Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045
	8, Alloy steel: SCM435,10B21
Surface Finishing	Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Chromate, Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc.

Heat Treatment	Tempering,Hardening,Spheroidizing,Stress Relieving.

Standard	ISO,GB,DIN,JIS,ANSI,BSW

Manufacture Process	Heading/washer assembly/Threading/Secondary machine/heat treatment/plating/Anti-slipping/Baking/QA/Package/Shipping

Sample	we can supply the samples for free,if the samples we have in stock

Lead time	10-15 working days as usual,It will based on the detailed order quantity.

Carton size	362416 CM &362412 CM
Pallet size	11010090 CM
Warranty	we confirm our goods will satisfy your request of 100%


After sales service	we will follow up goods for every customer and help solve problem after sales.

Q: Why the screw thread more closely, spin into the more effort?: Screw thread more dense, indicating the screw thread deep and shallow, the screw in the advance the resistance of the smaller, when the spin naturally more effort.

Q: What is the meaning of the 8.8 on the screw: Alina: refers to the strength of the thread level, the decimal point in front of the tensile strength, 8 is 800MPa, 10 is 1000MPa, the decimal point behind the value of the yield limit and the tensile limit ratio, .8 is 0.8.

Q: What is the difference between Chinese-made screws and US screws?: China-made screws are metric, American screws are American Standard or British

Q: A tightened screwdriver has been damaged, that is, the cross into a round mouth, and now I need to get it out for a new one, is there any way to take it out?: If the screw nail head on the outside, you can use the hacksaw saw a word again, and then use a relatively large one screwdriver out, if it is Shen head head, only slowly with a file to do, and then screwdriver.

Q: Also known as screw nails, I want to nail on the board, but there is no way to nail into the hard, how nail?: Wood must use a self-tapping screwdriver, if it is a common machine above the screws can not be nailed to the board above, if the wood is relatively hard, it is recommended to use a drill above the board to play a smaller hole than the self- , So more effort

Q: What is a self-tapping nail? Is it used? What are the characteristics of the shape? What is the difference with ordinary screws?: Self-tapping screw head shape with round head, flat head, semi-countersunk head and countersunk head and so on. Materials generally carburized steel, heat treatment after the surface hardness of not less than 45HRC.

Q: Please understand the friends of the self-tapping nails, screws, nuts production process, is the manufacturer's process. The more specific the more detailed the better: This is very simple, the screw wire is generally based on the size of the screw into the back, and then according to the order processing, starting - rubbing teeth - plating - packaging on the success

Q: How much is a screw?: If the inside of the screw is not the same specifications, the same material, even if not how much money out of a.

Q: What is the invention of the screw?: Today, many things are fixed with screws. Look around the house, the eyes see all kinds of things - from furniture to food processors, are connected with screws. The spirits were invented more than 2,000 years ago, but less than 500 years for fixing things.

Q: I am a trainee apprentice, recently encountered a problem, that is, some screws are screwdriver screwdriver or hexagon turned no thread. Can not buckle, only in the inside idle. What is the general use of this situation to open it? Thank you, more urgent.: Drill holes, with a solid hard material grinding a screwdriver, it is embedded in the hole, so just back the thread. If the hole is too small can not drill, put the screw directly drill with a drill hole drill, drill bit and screw bottom hole the same size, and then attack the thread under the wire. It is not possible to change the number one thread.

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