Glvaner (8 Sets) 5/16-18 x 3-1/2″ Stainless Steel Carriage Bolts Screws Round Head Square Neck and Hex Nuts & Flat Washers 304 Stainless Steel 18-8 Full Thread Coverage
$9.99
- Package Includes: 8 Pcs Carriage Bolts (5/16-18 x 3-1/2″) + 8 Pcs Hex Nuts (5/16″-18)+ 8 Pcs 5/16″ ID Flat Washers
- Thread Size: 5/16-18; Thread Pitch: 18 TPI; Thread Type: Coarse Thread
- Bolt head diameter: 18mm; Round head height: 4.3mm; Screw length (including the neck): 3-1/2 inch or 90mm
- Material: 304 stainless steel (A2) and no exterior finish, greater strength and corrosion resistance performance than regular stainless steel or zinc plated fasteners.
- Carriage bolts have a dome shaped head and a square neck generally requiring a hex nut and flat washer. The square neck makes them self-locking when used within a square hole.
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