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Alloy Steel Hex Drive Flat Head Screws

R91253A554 | Alloy Steel Hex Drive Flat Head Screws

$1.01

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :2 1/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A556 | Alloy Steel Hex Drive Flat Head Screws

$1.16

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :2 1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A558 | Alloy Steel Hex Drive Flat Head Screws

$0.54

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :2 3/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A560 | Alloy Steel Hex Drive Flat Head Screws

$1.51

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :3", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A562 | Alloy Steel Hex Drive Flat Head Screws

$0.60

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :3 1/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A564 | Alloy Steel Hex Drive Flat Head Screws

$0.40

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :3 1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A566 | Alloy Steel Hex Drive Flat Head Screws

$0.68

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :1/4"-20, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :5/32", Screw Size Decimal Equivalent :0.250", Length :4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.531", Head Height :0.161", Min Thread Length :1", Schedule B :731815.9000,

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R91253A576 | Alloy Steel Hex Drive Flat Head Screws

$0.15

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :3/8", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A578 | Alloy Steel Hex Drive Flat Head Screws

$0.16

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A580 | Alloy Steel Hex Drive Flat Head Screws

$0.19

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :5/8", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A581 | Alloy Steel Hex Drive Flat Head Screws

$0.17

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :3/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A582 | Alloy Steel Hex Drive Flat Head Screws

$0.34

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :7/8", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A583 | Alloy Steel Hex Drive Flat Head Screws

$0.18

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :1", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A585 | Alloy Steel Hex Drive Flat Head Screws

$0.13

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :1 1/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A587 | Alloy Steel Hex Drive Flat Head Screws

$0.21

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :1 1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A589 | Alloy Steel Hex Drive Flat Head Screws

$0.28

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :1 3/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Schedule B :731815.9000,

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R91253A591 | Alloy Steel Hex Drive Flat Head Screws

$0.36

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1", Schedule B :731815.9000,

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R91253A592 | Alloy Steel Hex Drive Flat Head Screws

$0.37

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :2 1/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1 1/4", Schedule B :731815.9000,

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R91253A593 | Alloy Steel Hex Drive Flat Head Screws

$0.39

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :2 1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1", Schedule B :731815.9000,

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R91253A594 | Alloy Steel Hex Drive Flat Head Screws

$0.43

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :2 3/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1 1/8", Schedule B :731815.9000,

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R91253A595 | Alloy Steel Hex Drive Flat Head Screws

$2.00

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :3", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1 1/8", Schedule B :731815.9000,

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R91253A596 | Alloy Steel Hex Drive Flat Head Screws

$14.31

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :3/4"-10, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :1/2", Screw Size Decimal Equivalent :0.750", Length :6", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C37, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :1.438", Head Height :0.396", Min Thread Length :2", Schedule B :731815.9000,

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R91253A597 | Alloy Steel Hex Drive Flat Head Screws

$0.57

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :3 1/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1 1/8", Schedule B :731815.9000,

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R91253A599 | Alloy Steel Hex Drive Flat Head Screws

$0.46

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :3 1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1 1/8", Schedule B :731815.9000,

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R91253A601 | Alloy Steel Hex Drive Flat Head Screws

$0.53

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Partially Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :5/16"-18, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :3/16", Screw Size Decimal Equivalent :0.313", Length :4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.656", Head Height :0.198", Min Thread Length :1 1/8", Schedule B :731815.9000,

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R91253A619 | Alloy Steel Hex Drive Flat Head Screws

$0.48

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :3/8"-16, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :7/32", Screw Size Decimal Equivalent :0.375", Length :1/2", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.781", Head Height :0.234", Schedule B :731815.9000,

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R91253A621 | Alloy Steel Hex Drive Flat Head Screws

$0.26

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :3/8"-16, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :7/32", Screw Size Decimal Equivalent :0.375", Length :5/8", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.781", Head Height :0.234", Schedule B :731815.9000,

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R91253A622 | Alloy Steel Hex Drive Flat Head Screws

$0.19

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :3/8"-16, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :7/32", Screw Size Decimal Equivalent :0.375", Length :3/4", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.781", Head Height :0.234", Schedule B :731815.9000,

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R91253A623 | Alloy Steel Hex Drive Flat Head Screws

$0.60

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :3/8"-16, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :7/32", Screw Size Decimal Equivalent :0.375", Length :7/8", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.781", Head Height :0.234", Schedule B :731815.9000,

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R91253A624 | Alloy Steel Hex Drive Flat Head Screws

$0.21

System of Measurement :Inch, class name :Alloy Steel Hex Drive Flat Head Screws, Drive Style :Hex, Head Type :Flat, Threading :Fully Threaded, Thread Direction :Right Hand, Thread Fit :Class 3A, Thread Size :3/8"-16, Thread Spacing :Coarse, Thread Type :UNC, Drive Size :7/32", Screw Size Decimal Equivalent :0.375", Length :1", Main Material :Black-Oxide Alloy Steel, Hardness :Rockwell C39, Tensile Strength :130,000 psi, Specifications Met :ASME B18.3;ASTM F835, Countersink Angle :82°, Country of Origin :Peoples Republic of China, Flat Head Profile :Standard, Head Diameter :0.781", Head Height :0.234", Schedule B :731815.9000,

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