Steel 307 Free Running M8 Self Tapping Insert Coils Screw

Steel 307 Self - Tapping Thread Insert Free Running Threaded Insert Coils Screw M8

Introduction

1. Enhance connection strength and improve connection conditions. Wire thread insert is selected from the aluminum, magnesium and other low-strength material, can be avoided slide wire, wrong tooth phenomenon and obtain a good connection performance.

2. Wear resistance. Used in frequently disassembled parts, it can greatly improve the service life of threads.

3. Increase the bearing surface. It is used in places where strong connection force is required and the diameter of the screw hole cannot be increased.

4. Anti-loosening. Especially used in the occasions where products such as spacecraft require a high insurance factor.

5. Easy to maintain. Install the damaged screw hole into the steel wire screw sleeve and continue to use it after repair to avoid the possibility of work piece damage.

Application

Self-tapping screw sets (self-tapping braces) are now widely used in the automotive industry, rail car industry, shipbuilding industry, household appliances, construction machinery, office machinery, electronic products, engineering plastics, high-end modular furniture, aluminum die-casting and other industries.The classification of self-tapping screws generally includes iron teeth. Wooden teeth F refers to the head type, generally countersunk heads, A generally refers to the A type teeth, which is the pointed tail teeth, and B generally refers to the B type teeth, which is the flat tail teeth.

Material

The material of domestic self-tapping screw sleeve is generally carbon steel and stainless steel. The material is 45 or 40Cr steel and 250HB-280Hb.

1, carbon steel 1215: color zinc plating, suitable for aluminum alloy, copper alloy, plastic and other engineering strength of low base material, surface carburizing heat treatment.

2, stainless steel SUS303 (304, 316, 316L) : suitable for cast iron and other high strength products, surface passivation treatment.

Installation Precautions

1, according to different processing materials, reference drilling size specifications, pre-drilling processing. When the hardness of the corresponding material is high, please slightly increase the bottom hole opened in the drilling range.

2. The slotted end of the screw sleeve is downward, and the self-tapping screw sleeve is completely installed into the front end of the tool, and the workpiece must be vertically contacted. When loading (1 ~ 2 pitch) please make sure to align with the bottom hole, never tilt. When tilting is detected, do not reverse the tool and re-adjust it before use. After entering 1/3 to 1/2, there is no re-entry. In addition, please do not reverse the rotation of the tool, otherwise it will cause product failure.

3, self-tapping screw sleeve assembly should be lower than the surface of parts at least 1mm.

Xinxiang Flight Fastener Co., Ltd. is a professional manufacturer engaged in the design and manufacture of Thread Inserts, Self-Tapping thread inserts and other threaded fasteners. National high-tech enterprises. The company has independent technology development strength, advanced design level, automatic production equipment and high-precision detection equipment. Professional to provide customers with Thread Inserts, Self-Tapping thread inserts and other threaded fastener product design and use of the whole process of technical support. The company has passed ISO9001:2015 quality system certification. "AVIC-FLIGHT" brand was awarded the certificate of "famous brand in China" by China product quality evaluation center. The company has obtained more than 15 utility model patents and 12 software copyrights.

The company has more than 70 sets of processing equipment, mainly automatic equipment. The products are widely used in communication base station cooling device, automobile power transmission system, aerospace, aircraft, ship, wind power transmission system, national power grid transmission equipment, communication electronic equipment, medical equipment, heavy engineering machinery equipment, semiconductor high-end equipment and other fields.

The company can produce Thread Inserts products that meet the corresponding standards according to customer requirements. It can be produced according to MS21209, DIN8140, N926, ITN32760, MO-44421 and other standards.

The company's Thread Inserts cover Free running and Screw lock thread specifications in metric and English systems.Thread Inserts can be plated with Cd, Ag, Zn, Sn, green, red, blue and dry film lubrication. Self-Tapping inserts cover 302 / 303 and 307 / 308 thread specifications in metric and English systems. The materials are stainless steel 1.4305 (303), stainless steel 1.4301 (304), stainless steel 1.4401 (316), brass. Case hardened steel, zinc plated yellow chromed or zinc plated blue passaged.The company can produce 60 million pieces of inserts with various specifications every year, and provide all kinds of auxiliary tools.

Integrity management, scientific and technological innovation, and customers grow together to create brilliant.