JIAXING HAINA FASTENER CO.,LIMITED
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HNF
2021112302
Custom Stainless Steel Cap M4 Hex Socket Drive Head Shoulder Screw
Product：
Self-extrusion tapping screws (threaded rolled tapping screws)
In the early 1950s, fastener engineers began to recognize the potential advantage of tapping screws as "structural" rather than as accessories for carrying light loads. This led to the development of a new type of tapping screw screw threaded rolled tapping screw (extrusion tapping screw). According to the design principle of cold-forged taps, threads and ends are specially designed for this screw so that intermittent, periodic pressure can be applied to the top of the screw thread, rather than to the side of the whole thread, to form a joint internal thread. By concentrating and limiting the forming pressure, the pressing material next to the hole can flow more easily and better fill (squeeze) into the tooth side and bottom of the tapping screw thread. Screw rolled tapping screws (self-extrusion tapping screws) can be screwed into a thicker section because the friction resistance is much lower than that of ordinary tapping screws. At the same time, it has better screw control and fastening torque, and greatly improves the connection strength and overall firmness. The engineering standard for tapping screws stipulates strict control of material selection, heat treatment mechanical properties and working performance.
| Product Name | Custom Stainless Steel Cap M4 Hex Socket Drive Head Shoulder Screw | ||||||
| Standard | DIN,ASTM/ASME,JIS,EN,ISO,AS,GB | ||||||
| Material | Stainless Steel:SS304, SS316,SUS410,SUS435 | ||||||
| Surface finishing | Ruspert,Dacrotized;Polishing, Plain, Sand Blasting | ||||||
| Customized Products Lead time | Busy season:15-25days,Slack seaon:10-15days | ||||||
| Stock Products | Stainless steel: All DIN ,GB Standard and part ASNI standard stainless steel screws, Example: ISO7380,DIN7981, DIN7982,DIN916,DIN913,DIN7985,DIN912 | ||||||
| Free Samples for standard fastener | |||||||
For more information visit:www.hainafastener.com | |||||||
Production Process
Certificate
Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.
RFQ
1. How do you let me trust you.
We have own import & export right, and we are gold mumber of alibaba and made in china, We get credit guarantee from Alibaba Group. You can make an order by alibaba to us directly.
2. How about your price.
High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
3. How do you control your quality.
We request QC inspect every productions links for each bacth goods. And we can provide you MTC and mill certificate when the goods is finished.
4. Could you provide free samples?
For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer, We will send you free samples and pay express charges by ourself.
5. Do you accept small order?
Sure, we can accept any orders, we keep lots of stock for all stainless steel,carbon steel nut and bolt, like hex weld nut, cage nut, wing nut, square weld nut,Cap nut, hex nut, flange nut. Metric 8.8Grade, 10.9Grade 12.9Grade Hex bolt and hex socket cap screw, part asme hex cap screw.
6. How about your delivery time
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days, if the quantity is more than 2 container and You are very urgent, we can let factory priority produce your goods.
7. What is your packing.
Our packing is 20-25kg for one carton, 36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requestment.
8. What is your payment term
We can accept T/T, LC for general order, Paypal and Western union for small order or samples order.
Custom Stainless Steel Cap M4 Hex Socket Drive Head Shoulder Screw
Product：
Self-extrusion tapping screws (threaded rolled tapping screws)
In the early 1950s, fastener engineers began to recognize the potential advantage of tapping screws as "structural" rather than as accessories for carrying light loads. This led to the development of a new type of tapping screw screw threaded rolled tapping screw (extrusion tapping screw). According to the design principle of cold-forged taps, threads and ends are specially designed for this screw so that intermittent, periodic pressure can be applied to the top of the screw thread, rather than to the side of the whole thread, to form a joint internal thread. By concentrating and limiting the forming pressure, the pressing material next to the hole can flow more easily and better fill (squeeze) into the tooth side and bottom of the tapping screw thread. Screw rolled tapping screws (self-extrusion tapping screws) can be screwed into a thicker section because the friction resistance is much lower than that of ordinary tapping screws. At the same time, it has better screw control and fastening torque, and greatly improves the connection strength and overall firmness. The engineering standard for tapping screws stipulates strict control of material selection, heat treatment mechanical properties and working performance.
| Product Name | Custom Stainless Steel Cap M4 Hex Socket Drive Head Shoulder Screw | ||||||
| Standard | DIN,ASTM/ASME,JIS,EN,ISO,AS,GB | ||||||
| Material | Stainless Steel:SS304, SS316,SUS410,SUS435 | ||||||
| Surface finishing | Ruspert,Dacrotized;Polishing, Plain, Sand Blasting | ||||||
| Customized Products Lead time | Busy season:15-25days,Slack seaon:10-15days | ||||||
| Stock Products | Stainless steel: All DIN ,GB Standard and part ASNI standard stainless steel screws, Example: ISO7380,DIN7981, DIN7982,DIN916,DIN913,DIN7985,DIN912 | ||||||
| Free Samples for standard fastener | |||||||
For more information visit:www.hainafastener.com | |||||||
Production Process
Certificate
Through scientific management, Jiaxing Haina fastener Ltd company has been obtained ISO9000 certificate of Quality Managerment System, SGS and BV international certificate system of Make in China.
RFQ
1. How do you let me trust you.
We have own import & export right, and we are gold mumber of alibaba and made in china, We get credit guarantee from Alibaba Group. You can make an order by alibaba to us directly.
2. How about your price.
High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
3. How do you control your quality.
We request QC inspect every productions links for each bacth goods. And we can provide you MTC and mill certificate when the goods is finished.
4. Could you provide free samples?
For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer, We will send you free samples and pay express charges by ourself.
5. Do you accept small order?
Sure, we can accept any orders, we keep lots of stock for all stainless steel,carbon steel nut and bolt, like hex weld nut, cage nut, wing nut, square weld nut,Cap nut, hex nut, flange nut. Metric 8.8Grade, 10.9Grade 12.9Grade Hex bolt and hex socket cap screw, part asme hex cap screw.
6. How about your delivery time
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days, if the quantity is more than 2 container and You are very urgent, we can let factory priority produce your goods.
7. What is your packing.
Our packing is 20-25kg for one carton, 36 or 48pcs cartons for one pallet. One pallets is about 900-960kg, We also can make customer's logo on the cartons. Or we customized cartons according to customers' requestment.
8. What is your payment term
We can accept T/T, LC for general order, Paypal and Western union for small order or samples order.
