









3/8-16 x 3-1/2" Stainless Steel Carriage Bolts with Hex Nuts and Flat Washers 304 Stainless Steel 18-8 Square Neck Bolts and Nuts Washers, Full Thread, Coarse Thread, 6 Sets
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Product Details
Package Contents: 6 Sets, each set includes 1pcs x 3/8-16 x 3.5 in carriage bolt, 1 pcs hex nut fits 3/8-16 carriage bolt and 1 pcs 3/8" inside diameter flat washer
Screw Length: 3-1/2 inch or 88mm (measured from under the round head, including the square neck height)
Diameter of the screw head: 20-21.5mm; Height of the screw head: 4.8-5.3mm; Height of the square neck: 4.8-5.7mm;
Design feature: Big round domed head designed to eliminate the need for a washer; Square neck underneath the head helps self locking; Their strong holding power ensures the stability and reliability of your contructions; Use wrench or plier tools to turn the square neck to install them
Material: 304 Stainless steel 18/8 which provides good strength and perfect corrosion resistance in bad environments like high temperature, cold weather and high humidity areas without the need for time consuming and costly maintenance