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: What is the meaning of the screw and the 4 and 8?: Screw should be written on the 4.8 bar, 4.8 on behalf of the strength level

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: The Symbolic Meaning of Screw: The "crazy screw" is in the life and employment under the dual pressure, long-term super-strength, over time limit of labor, the spirit of life, , Constantly challenge the physical and psychological limits of a group of people, they bear the hard work day and night, physically and mentally tired tired, gather more away from the family, is the new era of labor and employment environment of a deformed landscape.

Q: How does the screw twist?: For the "word" and "cross" head screws can be upright screwdriver, vibration screwdriver back (pay attention to intensity), and then twist.

Q: Screws, bolts, screws, what is the difference between the three ah?: There are no hexagonal head but the middle of the screw with the middle of the pole known as the double-headed bolts (studs), the whole body is screw called screw, in addition to countersunk head neck bolts, T-slot bolts, anchor bolts, U-shaped bolts. Bolt tightening device for the torque wrench, the opening size of the various shapes of fixed wrench, the opening variable size of the movable wrench, hydraulic tight bolts need hydraulic pumps and other accessories. In short: fasteners with screwdrivers and hexagonal tools are screws, and fasteners with wrenches are bolts. Note: can not be distinguished by the size and length of the nominal diameter. For example, a M48 long 300mm cylindrical head fasteners, GB / 70.1-2008 standard will be defined as hexagonal head screws, not bolts.

Q: There are some screws, is installed in the electrical, power, electronic products on the material, ask how to correctly install the screws?: Expansion screw installation method to expand the screw on the ground or wall holes in the hole, with a wrench to tighten the nuts on the expansion bolts, bolts to go out, while the outside of the metal sleeve is not moving, so the bolt under the bulk of the metal Set up to keep it full of holes, this time, the expansion of the bolt on the expansion of the expansion screw is to make the duct support, hanging, bracket fixed to the wall, the floor, the column used in a special thread connection Pieces. Consists of countersunk head bolts, expansion tubes, flat washers, spring mats and hex nuts. When used, you must first use the impact of electric drill (hammer) in the fixed body on the corresponding size of the hole, then the bolt, expansion tube into the hole, tighten the nut to bolts, expansion tube, the installation and expansion between the fixed body Tight into one. Expansion of the expansion of the principle of expansion of screws is to use the pull out of the slope to promote the expansion of friction caused by clamping force, to achieve a fixed effect. Screw head is a thread, a vertebral. Outside the package of a metal, metal cylinder half of a number of incision, put them together thrown into the hole in the wall, and then lock the nut, Luo mother pull out the screw, the vertebral pull into the metal cylinder, metal cylinder was Open up, so tightly fixed on the wall, generally used for fence, rain Peng, air conditioning and other cement, brick and other materials on the fastening. But its fixation is not very reliable, if the load has a greater vibration, may be loose, it is not recommended for the installation of ceiling fans and so on.

Q: I would like to look at my mp4 apart, the above screws are small, is cross-type, our family is not so small screwdriver, what can be used to screw the screw Oh, a little practical method Kazakhstan,: Buy a set of gadgets, a few dollars. Or to repair the master of the watch that borrow (generally do not borrow).

Q: Want to fix something, which is a triple iron (do not know how thick), would like to ask what screws can be turned into? Can ordinary drill go in? The question is to consider the drill or consider the screw, or have to consider? Thank you! The: Self-tapping screw; is a screw with a drill bit, through a dedicated power tool construction, drilling, tapping, fixed, locked once. Self-tapping screws are mainly used for the connection and fixing of some thin plate pieces, such as the connection of color steel plate and color steel plate, the connection of color steel plate and purlins, wall beam, etc., its penetrating power is generally not more than 6mm, the maximum does not exceed 12mm.

Q: Inside the hexagonal screws, rather not down, it may be too much screw on the screw too tight has been bad 3 screwdriver screw is too small also one-half of rice grain please help think about ways: First engage in a rust or diesel under the bubble. Then T-type wrench twist. (Own do)