2021 wholesale price Bushing - Bolt & Nut Mining Operation – Pingtai

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We usually perform being a tangible workforce making sure that we will give you the most beneficial excellent plus the finest selling price for Excavator carrier roller, Heavy Duty Track Rollers, Shaft Oil Seal, As a leading manufacture and exporter, we appreciate a great status inside the international markets, especially in America and Europe, because of our top high-quality and sensible charges.
2021 wholesale price Bushing - Bolt & Nut Mining Operation – Pingtai Detail:

Material using 35 forging, and modulation heat treatment processing technology to make the height of the screw and nut with the clearance more closely, not loose, wear-resistant, more tensile and compression resistance, not easy to break deformation, longer service life. The screw has two kinds of UNF and UNC and the tensile strength and compressive strength can reach 8.8-12.9.

Product detail information
Description: BOLT & NUT  MINING OPERATION
Place of origin: China
Brand name: PT’ZM
Model number D11
Price: Negotiate
Packaging details: Cartons and palltes
Delivery time: 7-30 days
Payment term: L/C T/T
Price term: FOB/ CIF/ CFR
Minimum order quantity: 1 PC
Supply Ability: 100000 PCS/month
Material: 35CrMo
Technique: Forging
Finish: Zinc(Yellow,White,Blue,Black),Hot Dip Galvanized(HDG),Black,Geomet,
Dacroment,anodization,Nickel plated,Zinc-Nickel plated
Hardness: 8.8-12.9
Quality: mining operation
Warranty time: 1 YEAR
After-sales service: Video technical support,Online support
Color: Yellow or Black or Customer required
Application: Bulldozer & Crawler excavator

1.The screw is manufactured using 35Crmo forging wire in advance into a spiral shape.Because the wire will deform and become thicker after being forged,We need to choose a wire rod that is slightly thinner than the shaft of the screw when making the screw。
2.The material is conveyed to the appropriate length position and straightened by machine equipment, then it is fed to a cold heading machine.

photo of bolt production process

3.First, the first punch movement makes the wire ready to form, and then the second punch movement again forging the wire and forming its finished product. In cold heading processing, the number of fixed dies (die) and stamping (flatten) dies (punch) is not the same.Some complex screws may need more than one punch with the forming, which requires a multi-station equipment can make the screw forming.

Photo of bolt production
photo of screw production process

4.After the movement of the punch, the head of the screw has been completed, but the part of the screw shaft has no thread. The forming method of the screw thread tooth is to rub the wire.Rub thread is the use of two relatively rotating screw teeth engraved with thread pressing die (rub plate) extrusion through the middle of the multi-station or punching machine processing cylindrical blank.

photo of screw production

5.After starting and rubbing the teeth, the whole screw has been produced. Of course, in order to make the appearance of the screw brighter and better performance, the surface treatment process will be generally done.Such as stainless steel screw cleaning passivation, carbon steel screw surface plating, etc.Made into various colors of screw fasteners
6.In the production of screw fasteners, it should be noted that each screw needs to use different molds, so non-standard screws will need to open another mold for production.

You are a trader or a manufacture?
We are an industry and trade integration business, our factory located in Quanzhou.We are a modern enterprise specializing in the integration of construction machinery and equipment parts manufacturing and network sales.

How Can I Be Sure The Part Will Fit My Excavator?
Give Us Correct Model Number/Machine Serial Number/ Any Numbers On The Parts Itself Or Measure The Parts Give Us Dimension Or Drawing.

How About The Payment Terms?
We Usually Accept T/T Or L/C. Other Terms Also Could Be Negotiated.

What About Quality Control?
We Have A Perfect QC System For The Perfect Products. A Team Who Will Detect The Product Quality And Specification Piece Carefully, Monitoring Every Production Process Until Packing Is Complete, To Ensure Product Safety Into The Container.


Product detail pictures:

2021 wholesale price  Bushing - Bolt & Nut  Mining Operation – Pingtai detail pictures

2021 wholesale price  Bushing - Bolt & Nut  Mining Operation – Pingtai detail pictures

2021 wholesale price  Bushing - Bolt & Nut  Mining Operation – Pingtai detail pictures


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Innovation, excellent and reliability are the core values of our company. These principles today much more than ever form the basis of our success as an internationally active mid-size business for 2021 wholesale price Bushing - Bolt & Nut Mining Operation – Pingtai , The product will supply to all over the world, such as: Barcelona, Kyrgyzstan, Moldova, With the spirit of "high quality is our company's life; good reputation is our root", we sincerely hope to cooperate with customers from at home and abroad and hope to build a good relationship with you.
  • The company has a good reputation in this industry, and finally it tured out that choose them is a good choice.
    5 Stars By Coral from Riyadh - 2018.06.30 17:29
    It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
    5 Stars By Pearl Permewan from Sacramento - 2018.02.21 12:14
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