50 Pieces 1/4x2-3/4in Hex Washer Head Concrete Screws Piercing Point Blue Finish, 50PK

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75 Pieces 5/16in Alloy Split Lock Washers Zinc Yellow USA Made, 75PK Split Lock Washers are non-continuous rings that tilt each end slightly outside in opposite directions and are designed to prevent a fastener from loosening due to vibration or torque.

.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.

.50 Pieces 3/4in-16 18-8 Stainless Steel Finished Hex Nuts, 50PK Finished Hex Nutsare a type of fastener with a threaded hole.

75 Class 8 Hex Flange Prevailing Torque Top Lock Nuts Zinc Clear, 125PK Metric Flange Nuts have a wide flange at one end, which acts as an integrated washer.125 Pieces M12-1..

.50 Pieces 3/8-16x1-3/4in Grade 5 Serrated Hex Flange Bolts Zinc Clear, 50PK Grade 5 Serrated hex flange bolts have serrated washers attached that distribute pressure and are able to provide sfficient grip onto the material it is being mounted to and thus resist loosening.

600 Pieces #6x1in Phillips Flat Head #2 Point Self Drilling Sheet Metal Screws Zinc, 600PK Self drilling screws are commonly used to fasten thin sheet metal to either wood or other metal..

Concrete screws are fasteners used for attaching medium-high load applications into concrete, solid brick, hollow brick or stone surfaces.

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Concrete screws are fasteners used for attaching medium-high load applications into concrete, solid brick, hollow brick or stone surfaces..