701043608064
    
ANSI B18.2.1-8.8 ZnUNC 5/16''x2.1/2
        Part.thread 18-UNC Gr.5 zinc plated        
    
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                            - ANSI B18.2.1 
                        
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                                        - Hardness 8.8 - Partial thread, UNC - Zinc coated (ZN) - Hexagonal head  |