100 Pieces M6-1.0x35 Phillips Flat Head Machine Screws Steel Zinc, 100PK

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Grade 5 Tap Bolts can be distinguished by the 3 dashes l on top of the head of the bolt.

.Slotted Hex Nuts have a slot on the outside surface of its hexagonal shape which are used for the insertion of a safety wire or cotter pin, creating a secure hold that prevents loosening or unscrewing.

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

1000 Pieces #8-32 Grade A Nylon Insert Hex Nuts Zinc, 1000PK Nylon Insert Lock Nuts are a type of lock nut that has a nylon collar insert - which increases friction on the screw thread..

.Cotter Pins are simple fasteners that are used to secure a bolt, or any other rod-shaped fastener, in place.

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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.

.250 Pieces 5/16-18x1in Stainless Steel Cup Point Allen Socket Set Screw, 250PK Cup Point Set Screws feature a hex drive at one end and a cup-shaped indentation at the other.

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..