Monster Fastener Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts Size:1/2"-13 x 3-1/2" (25 pcs) and abrasion resistant

and abrasion resistant

Shake or pour granules evenly around area to be treated

Locking mechanism functions with turn piece on the interior of the lock

Powerful Magnetic Base

doors and more

Monster Fastener Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts Size:1/2"-13 x 3-1/2" (25 pcs) and abrasion resistantA carriage bolt has a domed or countersunk head, and the shank is topped by a short square section under the head. The square section grips into the part being fixed (typically wood), preventing the bolt from turning when the nut is tightened. Diameter: 1 4" Length: 5 1 2" Material: Steel Finish: Zinc Head Style: Carriage Thread Size: 20 (Coarse) Thread Length: Full Hardness: Grade 2 A307 Type: Carriage Bolt Square Depth: 5 32" Diameter: 5 8" Length: