JLG parts grade 5 coarse thread cap screw. This is a 7/16" screw that measures 1" long with a 5/8" head. This screw is 14 threads per inch and has a zinc plate/yellow chromate finish. This screw fits a wide variety of JLG and Gradall models including 1200SJP, 1250AJP, 1500SJ, 400S, 600A, 600AJ, 600S, 600SJ, 660SJ, 800A, 800AJ, 800S, 860SJ, 544D, and many more. Please ensure proper model and serial range before parts purchase.