mywish (12sets) 5/16" x 2-1/2" hex head lag bolts, heavy duty lag screws with washers, 304 stainless steel bolts 18-8, lag screws wood screws, partial thread black oxide, 5/16 bolt is up for auction in Industrial & Scientific. The current bid is $2.00, 90% below the $19.99 MSRP, in New/Like New condition. Bid on this item at our Franklin - Washington Way location before the auction closes.