5/16-18 x 2-1/2" Black Carriage Bolts with Nuts and Washers Kits (10 Sets), 304 Stainless Steel 18/8, Black Finish, Round Head, Square Neck, Heavy Duty Bolts, Indoor Outdoor Fastening Bolts, Fayeploo

5/16-18 x 2-1/2" Black Carriage Bolts with Nuts and Washers Kits (10 Sets), 304 Stainless Steel 18/8, Black Finish, Round Head, Square Neck, Heavy Duty Bolts, Indoor Outdoor Fastening Bolts, Fayeploo

• Thread Size: 5/16-18; Thread Pitch: 18 TPI Coarse Thread Full Thread Coverage; Bolt Thread Length: 2.5 inch
• Package Contents: 10 Sets (bolts + matched nuts, flat washer and lock washer)
• Material: The sets are all made of 304 stainless steel 18/8; Excellent toughness; Good rust and corrosion resistance in both indoor and outdoor use; Extra Black Oxide treatments make it more chemical resistance while not impact strength or hardness
• Carriage Dia: 0.71 inch (max); Square Neck Height: 0.18 inch (max); Please note that the screw length 2.5 inch includes the square neck part
• Feature: (1) Can be easily tightened; (2) Withstand heavy vibrations and impacts for machinery usage; (3) Resist loosening over time; (4) Black Coating will not easily wear off over time; (5) Widely used in home improvement and industry applications due to their versatility and strength, their sturdy design ensure a secure connection