Stainless Steel Cross Countersunk Head Self Tapping Screws

• Customization: Available
• Application: Machine Parts, Decorations
• Certification: ISO
• Material: Steel
• Type: Fasteners
• Surface Finishing: Zinc Plated
• Color: as Ral or Customized
• Length: Max 5.8m for 20gp;11.8m for 40gp/Hq
• Connection: Common Bolt
• Usage: Outdoor
• Transport Package: Seaworthy Packing Standard/as Customer′s Request
• Specification: Hexagon Head
• Trademark: YUMI
• Origin: Xiamen, China
• HS Code: 7318140090
• Production Capacity: 600tons Per Month

Product Description

What is self drilled screws parts?

Self drilled screws or quick-threading screws, are steel quick-fit fasteners with galvanized and passivated surfaces.
Self drilled screws are mostly used for the connection between thin metal plates (steel plates, saw plates, etc.). When connecting, the first to be connected to make a threaded bottom hole, and then screw the self drilled screws into the threaded bottom hole of the connected parts.

Product specification:
 

Product size	Nominal screw thread(mm)	Nominal length(mm)
M3.5*25	M3.5	25mm
M3.5*32	M3.5	32mm
M4.2*25	M4.2	25mm
M4.2*32	M4.2	32mm
M4.2*38	M4.2	38mm
M4.2*45	M4.2	45mm
M4.2*50	M4.2	50mm
M4.8*25	M4.8	25mm
M4.8*32	M4.8	32mm
M4.8*38	M4.8	38mm
M4.8*45	M4.8	45mm
M4.8*50	M4.8	50mm
M4.8*63	M4.8	63mm
M5.5*25	M5.5	25mm
M5.5*38	M5.5	38mm
M5.5*45	M5.5	45mm
M5.5*63	M5.5	63mm
M5.5*75	M5.5	75mm
M6.3*25	M6.3	25mm
M6.3*32	M6.3	32mm
M6.3*38	M6.3	38mm
M6.3*45	M6.3	45mm
M6.3*50	M6.3	50mm

 

Advantage:
 

1) Heat treatment. Carbon steel self-tapping screws must be carburized, stainless steel self-tapping screws must be solid solution hardening treatment. In order to make the self-tapping screw to meet the requirements of the standard mechanical properties and performance.

2) Strong corrosion resistance. The self-tapping screw itself has a strong corrosion resistance, coupled with its added rubber sealing ring, so that the screw is exposed to the outside, or a relatively humid environment, can make the screw no water seepage, no rust.

3) High surface hardness and good core toughness. That is, "soft inside but tough outside." This is a major feature of the performance requirements of self-tapping screws. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. Therefore, the "internal soft steel" is a very important requirement for self-tapping screws to meet the performance.

4) Surface protection treatment, generally electroplating treatment. The surface of some products must be treated by phosphate (phosphating), such as the wall panel self-tapping screws are mostly phosphating.

5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of the self-tapping screw produced by the high-speed machine is well formed and the thread quality is high.

Applications:
FAQ:

Q1. What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q2. What is your sample policy?

A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.

Q3: How do you make our business long-term and good relationship?

A:1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Service & Support:

Xiamen Yumi New Material Technology Co., Ltd. Is one combination of industry and trade company, and very professional with steel structure products in China. Because of good quality and service, competitive price, our products are sold worldwide, such as America, South America, Europe, Southeast Asia, Africa etc. 

1)Professional sales team,One-to-one service;
2)Combination of industry and trade company,to ensure the service and price;
3)Experienced engineer team to offer professional technology service;
4)Intimate after-sales service.

Experienced technology suport, competitive price, professional service, we are here to help you go on with your project smoothly.