2 Pieces 1/2-13x3-1/4in A325 Structural Hex Bolts Partial Thread Plain, 2PK

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Phillips Flat Head machine screws have a flat top with a conical bearing surface andare commonly used in countersunk holes where the screw head must sit flush with the surface of the material.

.These screws have a wide, domed head with a flat undersideand a point that can cut new threads in a pre-drilled hole in thicker metal.

.Phillips Pan Head machine screws have a pan-shaped head with a flat top and vertical sidesand are commonly used in electronics.

Square Nuts are four-sided nuts that are designed for use with a square head bolt and flat washerwhichoffer greater surface contact with the part being fastened compared to a standard hex nut, and therefore provide greater resistance to loosening..

.25 Pieces 1/4-20x2-3/4in Stainless Steel 18-8 Carriage Bolts, 25PK Carriage bolts have round heads, differentiating them from hex bolts.

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130 Steel Hex Rivet Nut Zinc Yellow, 25PK Hex Rivet Nuts are for heavy duty applications with hexagonal holes.080-.

2 Pieces 1/2-13x3-1/4in A325 Structural Hex Bolts Partial Thread Plain, 2PK A325 Structural Hex Bolts are marked A325 on the head andare commonly used for structural steel connections in heavy steel structures..

130 Steel Hex Rivet Nut Zinc Yellow, 25PK Hex Rivet Nuts are for heavy duty applications with hexagonal holes..