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            | Hexagon socket countersunk head screw UNF | 
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                    |  |  | BS ≈2470 ANSI ≈B18.3 |  |  | 
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            | Technical Parameter | 
            | | d No.10 | Threads per inch 32 | LT (min.) 22 | H - | A 10,44 | J 1/8 |  | 1/4 | 28 | 25 | 4,1 | 13,4 | 5/32 |  | 5/16 | 24 | 28 | 5 | 16,6 | 3/16 |  | 3/8 | 24 | 32 | 5,9 | 19,8 | 7/32 |  | 1/2 | 20 | 38 | 6,4 | 23,8 | 5/16 |  | 5/8 | 18 | 45 | 8,2 | 30,1 | 3/8 | 
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            | Product Category | 
            | | Thread | Driving features | Material | Class | Surface treatment | Packaging | Code | Page |  | UNF | hexagon socket | St | 010.9/10.9 | Mech.zipl. | Standard | 07560 | 2-36 |  | UNF | hexagon socket | St | 010.9/10.9 | 
 | Standard | 07580 | 2-36 | 
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