2BK40H Light Duty Two Groove QD Sheave for 4L or A, 5L or B Belts. 3.95" O.D. ATTACHMENT CHAIN for 4L or A Belt: ST#80-1-SL Shank Size 1 2 Size:F-2-3/4" Extra Thick Flat Washer
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Description
2BK40H Light Duty Two Groove QD Sheave for 4L or A, 5L or B Belts. 3.95" O.D. ATTACHMENT CHAIN for 4L or A Belt: ST#80 1 SL Shank Size 1 2 Size:F 2 3 4" Extra Thick Flat Washer for 4L or A Belt: 9 776 are primarily designed for shoulder bolts used on truck frames