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Qifeng hardware supplies two types of track bolts, button head oval neck and button head elliptical nec.
Oval Neck Track Bolts Oval Neck Track Bolts in all grades are made Nominal Dia Over Thread | Head | Neck | Thread length Min |
D | A | H | r1 | r2 | O | R | P | r3 | V | l | .50 | .875 | .313 | .688 | .281 | .625 | .594 | .313 | Half body dia of bolt | Same as body dia of bolt | 1.125 | .625 | 1.078 | .391 | .922 | .359 | .813 | .781 | .375 | 1.25 | .75 | 1.281 | .469 | 1.156 | .438 | 1.063 | 1.031 | .438 | 1.75 | .875 | 1.484 | .547 | 1.393 | .516 | 1.219 | 1.188 | .500 | 2.00 | 1.00 | 1.688 | .625 | 1.625 | .594 | 1.375 | 1.344 | .563 | 2.25 | 1.125 | 1.891 | .703 | 1.859 | .672 | 1.531 | 1.500 | .625 | 2.50 |
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Package:bulk or according to customer's requirement Note: Technical drawing needed for an enquiry if you need Special Track Bolts.
ANSI/ASME B18.10