Bulk Expansion Shield Anchors – Single & Double – Zinc Alloy – 1/4" to 3/4" – Monster Bolts Length:500 Qty - 1/4" - Single Bulk 1/4"-20 Carriage Bolt A307

Bulk 1/4"-20 Carriage Bolt A307 Grade A Zinc Yellow CR+6

while a wide flat-blade slot provides a back-up drive in tight spots

Suitable for brick

Zinc-Bake Finish: Zinc coating with post-bake treatment for embrittlement relief and durability

Bulk Expansion Shield Anchors – Single & Double – Zinc Alloy – 1/4" to 3/4" – Monster Bolts Length:500 Qty - 1/4" - Single Bulk 1/4"-20 Carriage Bolt A307Monster Overview: Expansion Shield Anchors Zinc Alloy from Monster Bolts are versatile, heavy duty fasteners designed for concrete, brick, block, and masonry. Available in both single and double expansion versions, these anchors are engineered to provide a secure hold where vibration or shifting loads are a concern. Available in sizes from 1 4" up to 3 4", these zinc alloy shields expand outward as the screw or bolt is tightened, gripping the base