BBI 721009 Semi-Standard Flat Socket Cap Screw, 1/2-20, 4 in OAL, Alloy Steel, 3A Grade
BBI 721009 Semi-Standard Flat Socket Cap Screw, 1/2-20, 4 in OAL, Alloy Steel, 3A Grade
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BrandBBI
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UPC662403698828
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Manufacturer Part Number721009
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CountryUSA|Canada
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FinishPlain/Thermal Black Oxide
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MaterialAlloy Steel
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Material SpecificationASTM A835
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Measurement SystemImperial
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TypeSemi-Standard
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Grade3A
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Diameter - Thread Size1/2-20
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Drive Size5/16 in
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Drive TypeHex
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Overall Length4 in
- UNF thread
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UNSPSC31161501
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Package Description25/CS
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Standards/ApprovalsASME/ANSI B18.3-2002
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Catalog
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BBI 721009 Semi-Standard Flat Socket Cap Screw, 1/2-20, 4 in OAL, Alloy Steel, 3A Grade
BBI 721009 Semi-Standard Flat Socket Cap Screw, 1/2-20, 4 in OAL, Alloy Steel, 3A Grade
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Browning® 1045228 VP Series Type 1 Variable Pitch Sheave, 1/2 in Finished Bore, 2-1/2 in OD, 1 Groove, 1.6 to 2.4 in Dia Pitch, 17/32 to 25/32 in W Face
The principle of a variable pitch sheave is that the threaded angular faced discs forming the V-shaped groove in which the belt rides are movable. VP sheaves consist of a male with a threaded barrel, and a female with a threaded bore. The male section with threaded barrel has flat surfaces at 180 deg increments that allow a flat surface for the setscrew to mate with. When the discs are moved toward each other, the belt rides higher in the groove and the pitch diameter of the sheave is larger which increases the driven speed. When the discs are moved away from each other, the belt rides lower and the pitch diameter is smaller decreasing the driven speed. The common term for this speed adjustment is called number of turns open from closed position.
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Browning®Type B minimum bore sprockets are offered in single, double and triple strands. Offerings include 25 to 200 pitch range. Minimum bore sprockets are available in bore ranges from 1/4 to 8-3/8 in.
20-MM 6-PT 1/2" -DRIVE DEEP IMPACT SOCKET
