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Part Number: 805139898
The 805139898 Screw is a heavy-duty, precision-machined iron fastener engineered to meet the extreme structural demands of Down-The-Hole (DTH) drilling rigs. In environments where high-frequency vibration and heavy percussive shocks are constant, standard hardware fails. This specialized fastening screw provides essential clamping force, ensuring that critical structural panels, mast assemblies, and engine mounts remain rigidly secured during continuous hard-rock drilling cycles.
Precision Machined Threading: Manufactured to exacting tolerances to ensure a perfect, bite-resistant fit within tapped holes, eliminating mechanical play and preventing vibration-induced back-out.
High Tensile Iron Construction: Machined from solid iron to provide exceptional shear strength and tensile load capacity, resisting deformation under the severe stresses of blast hole drilling.
Optimized Dimensions: Featuring a precise 2.4 x 2.4 x 7.6 cm profile and weighing 0.11 kg, it delivers maximum fastening power while remaining compatible with standard DTH chassis and bracket configurations.
Vibration Resilience: Specifically designed to maintain a locked, steadfast hold, protecting adjacent mining equipment seals and structural welds from the damaging effects of loose component rattling.
The primary application of the 805139898 Screw is the secure fastening of high-stress structural and mechanical sub-assemblies on DTH drilling rigs. It is utilized to lock down heavy-duty components such as hydraulic valve banks, compressor housings, and mast pivot brackets. By ensuring these parts function as a unified, rigid structure, this fastener directly contributes to the safety, accuracy, and operational longevity of the entire drilling machine.
Primary Application: Down-The-Hole (DTH) Drilling Rigs / Surface Blast Hole Drills.
Note: Please cross-reference part number 805139898 with your equipment's parts manual to verify exact thread pitch and length compatibility prior to installation.
| Specification | Detail |
| Product Name | Screw (Fastener) |
| Part Number | 805139898 |
| Material composition | Iron |
| Manufacturing Process | Molded |
| Unit Weight | 0.11 kg |
| Primary Function | Heavy-duty structural fastening and securing |
| Title | Product No. | Product Name | production method | warranty period |
| 1 | 3115288900 | Screw-type Connector | Casting | 1 year |
| 2 | 3115211300 | Drilling Rig Long Screw | Casting | 1 year |
| 3 | 0259206100 | Threaded Insert | Casting | 1 year |
| 4 | 3115145700 | Side Bolt | Casting | 1 year |
| 5 | 3115361300 | Long bolt | Casting | 1 year |
| 6 | 3115116500 | Double-ended stud | Casting | 1 year |
| 7 | 3115504000 | Long Screw | Casting | 1 year |
| 8 | 211196301 | bolt | Casting | 1 year |
| 9 | 291112828 | Lock Nut | Casting | 1 year |
| 10 | 3115028600 | Nut | Casting | 1 year |
| 11 | 5112300335 | Wheel Bolt | Casting | 1 year |
| 12 | 147140103 | Hex Screw | Casting | 1 year |
| 13 | 3115534700 | Side Screw | Casting | 1 year |
| 14 | 291112825 | Lock Nut | Casting | 1 year |
| 15 | 259200900 | Threaded Insert | Casting | 1 year |
| 16 | 3115028700 | washer | Casting | 1 year |
| 17 | 0147140003 | Hex Screw | Casting | 1 year |
| 18 | 3115354800 | Nut | Casting | 1 year |
| 19 | 0291112822 | Lock Nut | Casting | 1 year |
| 20 | 0147148303 | Hex Screw | Casting | 1 year |
| 21 | 3115261720 | End Plug | Casting | 1 year |
Chongqing Ug Heavy Machinery Co., Ltd. mainly provides total drilling solutions and serves open pit, engineering tunnel and underground mine drilling industries, helping you solve drilling problems efficiently and cost-effectively. We mainly provide jumbo drilling, DTH drilling rig, Drifter, drilling bits, strong after-sales service system and perfect supply chain, UGHM will be your reliable partner.
We have passed all kinds of international professional certifications and are listed as a national professional production enterprise. The company has an experienced and innovative workforce consisting of 70 employees, 20 specialized technicians and 5 engineers. It also has comprehensive inspection and monitoring methods and quality assurance systems. Since the establishment of our company, we have always adhered to the principle of "Quality First, Sincerity First".
Our products are sold to many countries overseas. Distributed in 20 countries in Europe, Africa and Asia. Our rock drilling trucks are traveling in the mines of various countries to work continuously. We cooperate deeply with international famous brands and make progress together!
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