Bulk Flat Head Sleeve Anchors – Phillips/Slotted Combo – Zinc CR+3 – 1/4", 5/16", 3/8" – Monster Bolts wedge anchor L-9 (L9) fasteners represent the

L-9 (L9) fasteners represent the pinnacle of SAE grading for hex cap screws

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mild chemicals

offering exceptional protection against rust and corrosion

Bulk Flat Head Sleeve Anchors – Phillips/Slotted Combo – Zinc CR+3 – 1/4", 5/16", 3/8" – Monster Bolts wedge anchor L-9 (L9) fasteners represent theMonster Overview: Upgrade your projects with Flat Head Sleeve Anchors from Monster Bolts. Built with a Phillips Slotted combo drive, these anchors are quick to install using standard tools and deliver a flush surface finish for clean, professional results. Crafted from steel with a Zinc CR+3 coating, these anchors resist corrosion in indoor and light outdoor environments. Ideal for attaching fixtures to concrete, block, or masonry. Monster Features: