WRENCH OPENINGS FOR SQUARE NUTS AND ... - Sales …

ASME/ANSI. NUTS. WRENCH OPENINGS FOR SQUARE AND HEX NUTS 1987 (R1999). APPENDIX III. Hex flat Heavy SQUARE Hex flat Jam Nominal Size Heavy Hex flat Allowance Hex of WRENCH WRENCH SQUARE Heavy Hex flat Jam Between Hex Jam Also Basic OPENINGS Nut Heavy Hex Nut Flats Hex Slotted (Maximum) Heavy Hex Jam and Jaws Hex Thick width Across Heavy Hex Slotted of WRENCH Hex Thick Slotted Flats of Nuts Win Tol Max Nominal Nut Sizes 7/16 1/4 1/4. 1/2 5/16 1/4. 9/16 5/16 3/8 5/16. 5/8 3/8 . 11/16 7/16 3/8. 3/4 7/16 1/2 7/16. 13/16 1/2 . 7/8 9/16 1/2. 15/16 5/8 9/16. 1 5/8 . 1-1/16 5/8. 1-1/8 3/4 3/4 . 1-1/4 3/4.

most cases) width across flats dimension of the respective nut. For specific requirements applicable to wrenches, refer to the appropriate American National Standard, ANSI B107 document, which covers the particular wrench type. 2. Allowance (minimum clearance) between maximum width across flats of the nut and jaws of wrench equals (0.005W + 0.001).

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  Square, Sarco, Opening, Flat, Width, Wrench, Wrench openings for square, Width across flats

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