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  • 1-8 UNC x 6
  • 1-8 UNC x 6
  • 1-8 UNC x 6

1-8 UNC x 6" Grade 8.8 Precision Phosphate Shoulder Bolts

1-8 UNC × 6" Grade 8.8 Precision Phosphate Shoulder Bolts are heavy-duty shoulder screws engineered for robust positioning and guided-motion applications in large-format tooling, stamping dies, and industrial machinery. 
The 6-inch shoulder length makes these bolts ideal for deep-through-hole assemblies — such as thick mold plates, multi-stage die sets, and heavy equipment pivot pins — where standard-length shoulder screws cannot provide adequate bearing surface.

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    • Specifications
    • Product Details
    • Company Profile
    Product Name Shoulder Screw
    Specification: Measurement System: Metric/ Imperial System
    Grade: 12.9
    Material: Alloy steel
    thread type: M6-M16; 1/4"; 5/16"; 3/8";1/2"; 5/8";etc。
    Length: 15-300mm
    Surface: Black oxide
    Optional material: SCM435/40Cr 
    Standard: BS2470-1973
    Customization: OEM/ODM Accepted
    Applicatioon: General Industry/ Precision Machinery Field
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