5/16" diameter high-strength hex head cap screws in Grade 8 yellow zinc. UNC standard coarse thread 5/16-18. Sometimes referred to as Hex Bolts. Grade 8 cap screws have a minimum tensile strength of 150,000psi. Sizes up to an including 1" will be fully threaded, sizes over 1" will generally have between 3/4" to 1" of thread length.

Sold as packs of 100pcs.

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