七月 2026的A&K Railroad Materials, ...市场份额分析

Description Details: New Button Head Oval Neck Track Bolts with Nuts sold in 50 lb kegs. (Qty/keg varies by size) A&K Railroad Materials Inc. Button Head Oval Neck Track Bolts are manufactured to AREMA specifications with button head, oval neck and rolled thread. Description: Bolts manufactured to AREMA specifications for application in standard full toe, toeless, splice bars, style joint bars. They may be used in any class of track including mainlines, industrial spurs, and sidetracks. Nuts are heavy-duty, free fit nuts. Bolt Size Rail Weight Avg Units/Keg ½ x 2-1/2’’ 20 to 25 208 5/8 x 2-1/2’’ 30 to 40 128 5/8 x 3’’ 30 to 40 115 ¾ x 3’’ 40 to 45 75 ¾ x 3-1/2’’ 50 to 60 67 ¾ x 4’’ 70 to 75 62 7/8 x 4-1/2’’ 85 to 90 41 7/8 x 5’’ 90 to 100 38 7/8 x 5-1/2’’ 90 to 100 37 Bolt Size Rail Weight Avg Units/Keg 15/16 x 5-1/4’’ 90 to 100 33 15/16 x 5-1/2’’ 90 to 100 31 1 x 5’’ 90 to 100 28 1 x 5-1/2’’ 110 to 130 27 1 x 5-3/4’’ 110 to 130 27 1 x 6’’ 131 to 140 25 1-1/16 x 6’’ 131 to 140 24 1-1/16 x 6-1/4’’ 131 to 140 22 1-1/8 x 6’’ 131 to 140 19 1-1/8 x 6-1/2’’ 131 to 140 18