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Bolt Cold Heading Parts

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Bolt Cold Heading Parts
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  • Bolt Cold Heading Parts

Bolt Cold Heading Parts

Cold Heading Various Stainless Steel Bolts

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  • Specification
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  • It is processed by STAR dual-spindle CNC centering machine, the cylindrical cutter with 55°R0.2 corner is used for finishing the end face, processing the outer diameter, the 90°tungsten steel center drill is used for centering, the tungsten steel bit is used for drilling, then use the rotary punch to process the inner hexagon,then remove the burr in the hole with a tungsten-carbide bit, and then use the R0.4 corner turning tool to rough the outer diameter of the thread, for the secondary shaft, use a cylindrical cutter with 55°R0.2 corner to process the outer diameter of the thread, finish the end face, and then use a thread cutter to process the thread, and then use a cylindrical cutter with 55°R0.2 corner to remove the thread burr, and then use a thread cutter to remove the thread burr.
    Specializing In The Production Of Stainless Steel Contour Screws, End Cross, Plum And Hex Can Be Produced. Hexagon Socket Screws Are Often Used In Machinery, And Have The Advantages Of Easy Fastening, Disassembly, And Not Easy To Slip Corners. The Allen Key Is Generally A 90 ° Turn. One End Of The Bend Is Long And The Other End Is Short. When Screwing With The Short Side, Holding The Long Side Can Save A Lot Of Force And Tighten The Screw Better. The Long End Has A Round Head (hexagon Cylinder Is Similar To A Ball) And A Flat Head. The Round Head Can Be Easily Inserted Into The Screw Hole For Easy Removal. The Manufacturing Cost Of The Outer Hexagon Is Much Lower Than That Of The Inner Hexagon. Its Advantage Is That The Screw Head (the Stress Position Of The Wrench) Is Thinner Than The Inner Hexagon, And Some Places Can Not Be Replaced By The Inner Hexagon. In Addition, The Inner Hexagon Screws Used By Machines With Low Cost, Low Power Strength And Low Accuracy Requirements Are Much Less Than The Outer Hexagon.
    Material:  SUS304(1.4301)/SUS316(1.4404) Specification:  OD 10*M6 (customized according to customer size)

Ningbo Yi Yi Precision Technology Co., Ltd.

Ningbo Yi Yi Precision Technology Co., Ltd. is leading China Cold Heading Various Stainless Steel Bolts suppliers and OEM/ODM Cold Heading Various Stainless Steel Bolts company, a combination of industry and trade enterprises, including Ningbo Xinhaocheng Precision Parts Co. With 1000 square meters of production plant and 30 employees. Its 2 companies focus on centering machine processing, production of precision non-standard parts, and has advanced imported equipment from Japan: STAR and Tsugami 5-9 axis centering machine, Citizen lathe, machining center and other equipment. The machine has the function of six-axis turning processing, which can complete drilling, turning, milling, tapping, boring, reaming, hobbing, shaping, etc. at one time, which can ensure the high precision, consistency and stable tolerance of shape of the parts. And according to the customer's needs, the power cutting tool function module with front and side milling function can be installed to complete the precision machining of complex shaft parts.

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We regard quality as our life. From quotation, customer order, equipment, material, production, surface treatment, to inspection, to final packaging, every step must be perfect.

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We regard quality as our life. From quotation, customer order, equipment, material, production, surface treatment, to inspection, to final packaging, every step must be perfect.

  • Address:

    No. 8, Xuyang Daokou South Road, Daqi, Beilun District, Ningbo City, Zhejiang Province, China.

  • Phone:

    +86-18991368108/13736075594

  • Fax:

    +86-0574-86110696

  • Email:

    Grace@YY-Precision.com