500 Pieces 1/4-20x1/2in 18-8 Stainless Steel Phillips Truss Head Machine Screws, 500PK

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.High Collar Split Lock Washers are taller than than standard split lock washers and 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.

.50 Pieces 1/2-13x2-3/4in Grade 8 Hex Flange Frame Bolts Phos & Oil, 50PK Grade 8 Non serrated hex flange bolts have a smooth, non-rotating washer attached that does not bite into the surface it's being mounted to.

50 Pieces 1/2-20x1in Hex Cap Screws Grade 5 Bolts Zinc Clear, 50PK The most common setup for these bolts would contain a Bolt, 2 Flat Washers, Hex Nut or Hex Lock Nut, and/or Split Lock Washer.

9 flange provide a high strength, high tensile fastening solution.50 Pieces M12-1..

Instead of the hexagonal head, the 12 point flange bolt is tailor-fitted to accommodate socket head cap screw.15 Pieces 1/2-13x1-3/4in Alloy 12 Point Flange Screws Black Oxide, 15PK You can see this bolt in automotive, mining, aircraft, and manufacturing..

.50 Pieces 9/16in-12 Grade 8 Hex Nylon Insert Lock Nuts Phos & Oil, 50PK Nylon Insert Lock Nuts are a type of lock nut that has a nylon collar insert - which increases friction on the screw thread.

.Phillips Truss Head Machine Screws are a type of screw that have a wide head which provides a larger bearing surface.

50 Pieces 9/16in-12 Grade 8 Hex Nylon Insert Lock Nuts Phos & Oil, 50PK Nylon Insert Lock Nuts are a type of lock nut that has a nylon collar insert - which increases friction on the screw thread..

.They are commonly used to join sheet metal together.