Dongguan Situo Hardware Products Technology Co., Ltd
                                                                                                           
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7 Years
Since 2019
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Electrogalvanizing Hexagonal Lock Nut Stainless Steel Screws And Nuts With Through Hole

Price Negotiable
Price: 5-10 USD per item
MOQ: 1PCS
Delivery Time: Communication
Brand: SITUO
Product Description

The stainless steel hexagonal nut with through-hole adjustable screw. It is precisely processed by CNC.

 

Precision Instruments & Optical Equipment

 

Practical Products

 
Microscope adjusting nuts, projector/lens fixing nuts, testing instrument locking nuts, laboratory precision platform assembly nuts
 

CNC Production & Processing Features

 
Extremely high requirements for concentricity, flatness and perpendicularity (tolerance ≤ ±0.005 mm), with strict control over the concentricity between internal threads and external contours.
 
Multi-reference surfaces and internal threads are processed in a single CNC clamping setup to ensure assembly accuracy and avoid errors caused by repeated clamping.
 
Fine-adjustment internal threads and limit slots can be manufactured to meet the adjustment requirements of precision instruments.
 
Materials are mostly stainless steel and aluminum alloy, with precision grinding to improve surface finish and dimensional stability.
 
Accurate positioning and reliable locking, free from loosening and abnormal noise, preventing instrument accuracy degradation caused by nut loosening.
 
No displacement or shaking in precision-sensitive optical systems (such as lenses), ensuring accurate testing and observation data.
 
Fine-adjustment nuts feature smooth and consistent adjustment without jamming, improving operator experience and meeting high-precision requirements in laboratories and testing applications.
 

Common CNC Machining Issues & Key Points

 
  • Accuracy deviation issues
     
    Repeated clamping easily causes out-of-tolerance concentricity and flatness, as well as misalignment between internal threads and external contours.
     
    High-precision fixtures and single-setup processing are required.
     
    Real-time dimensional monitoring during machining is necessary to avoid accuracy deviations due to thermal deformation.
     
  • Fine-adjustment thread machining issues
     
    The lead of internal threads in fine-adjustment nuts must be precise.
     
    Lead deviation often results in poor adjustment smoothness and insufficient accuracy.
     
    Strict control of thread machining accuracy, use of special taps, and post-machining lead inspection are required to ensure consistent adjustment feel.
     
  • Surface precision grinding issues
     
    Surface waviness, scratches and internal thread burrs often occur after precision grinding.
     
    High-precision grinding machines must be used with controlled grinding speed and feed rate to ensure surface roughness Ra ≤ 0.8 μm.
     
    Finishing after tapping is required to remove thread burrs.
     
  • Limit structure machining issues
     
    Dimensional deviations in limit slots will cause abnormal adjustment travel.
     
    Precise machining of limit slots is required to match the internal structure of the instrument.
     

    Travel testing after machining is necessary to avoid limit failure and ensure instrument adjustment accuracy.

     

     

    We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

     

    Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

     

    Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

     

    Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

     

    Our customers include , bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.

     

    OUR CAPACITY
    Main product names: Stainless steel screws, carbon steel screws, pins, rivets, nuts,
    eccentric nails, embedded parts, and other fasteners.
    Business Type Factory / Maufacture
    Service CNC Machining
    Turning and Milling
    CNC Turning
    Cold heading
    stamping
    Assembly Service
    Material 1). Aluminum: AL 6061-T6, 6063, 7075-T etc
    2). Stainless steel:303,304,304L,316L,316F,630,410,420,430, etc
    3). Steel: 4140, Q235, Q345B,20#,45# 1215,12L14 ,1144,1006,1008,1010,1015,1018 ,10B21,1035,1065 etc.
    4)Alloy steel:5140,4135,4140,3435,5120,415 ,435,440 etc
    5). Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc
    6). Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc
    7). Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc.
    Finish Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish,
    Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing,
    electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench),
    Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc.
    Drawing format STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples.
    Tolerance +/-0.01mm ~ +/-0.05mm
    Surface roughness Ra 0.1~3.2
    Inspection Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM
    Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge

     

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Dongguan Situo Hardware Products Technology Co., Ltd
Location No. 9, Shi bi One Alley, Zhangmutou Town, Dongguan City, Guangdong Province
Contact Person chen

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