Metallics JG5HTB512 Bolt 5/8-11 x 5-1/2 G5 Hx Tap Blt S (Jar 25)

It's a 5/8-11 thread by 5-1/2 inch hex tap bolt. The 5/8-11 designation means a 5/8 inch diameter with 11 threads per inch, which is the standard UNC coarse pitch for that diameter. Tap bolt means it's threaded the full length rather than having an unthreaded shank, so it takes a nut anywhere along the body or threads straight into a tapped hole.

Yes. The jar contains the 25 bolts only. Because it's a tap bolt threaded the full 5-1/2 inches, you'll need matching 5/8-11 hex nuts and 5/8 washers if you're through-bolting; if you're landing into a tapped hole or a threaded channel insert, no nut is needed.

Yes, it's a Grade 5 hex tap bolt (the G5 in the description). Grade 5 is the medium-carbon, quenched and tempered class most commonly specified for general structural and equipment mounting work, a step above Grade 2 and below Grade 8.

Each jar holds 25 bolts. Metallics packs these 5/8-11 x 5-1/2 Grade 5 hex tap bolts in jar packaging, so you're buying a counted 25-piece unit rather than loose bulk weight, which is handy if you're stocking a service truck or an MRO crib shelf.

The 5-1/2 inch length gives you plenty of grip for stacked assemblies, strut and channel brackets, trapeze hanger steel, and equipment feet with thick bases or shims. Being full-thread, the clamp length is wherever you set the nut, so one length covers a range of stack-ups. For thin single-plate connections the extra thread sticking past the nut is the only drawback.

A hex cap screw in 5/8-11 x 5-1/2 has an unthreaded shank under the head; the JG5HTB512 hex tap bolt is threaded all the way to the head. Go with the tap bolt when you need thread engagement right up at the head, when you're threading into a tapped hole of unknown depth, or when a single length has to serve several different material thicknesses. Pick a cap screw instead when the joint is loaded in shear and you want the solid shank in the shear plane.

Order Metallics MPN JG5HTB512. That number covers the 5/8-11 x 5-1/2 inch Grade 5 hex tap bolt in the 25-piece jar, and it's the only configuration under that part number, so there's no size or finish option to pick.