2 1/4-4 1/2 A563 Grade A Heavy Hex Nut Zinc Plated

but they’re also vibration- and shock-resistant

14 x 11 Log Hog® Heavy Duty Log Home Fastener (250)

14 x 3 1/4 Simpson Flat-Head Self-Drilling Screw w/ Wings - Square Drive 410 SS - Box (100)

1/4 x 4 Powers Wedge-Bolts®+ Concrete Anchor 316 Stainless Steel Bimetal ( 100) M27-3.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 2 1/4-4 1/2 A563 GradePowers Wedge Bolts+ Concrete Anchors provide superior fastening performance with accuracy for low and medium duty applications in solid concrete and grout filled masonry. Made from 316 stainless steel bimetal, they provide resistance to corrosion and superior longevity. Perfect for anchoring fixtures with 1 4" (6. 35mm) diameter and 4" (102mm) length.