... 2)Model Number:M6, M8, M10, M12, M16, M20 Galvanized Drop-in Anchor with knurling We are professional manufacturer of fasteners ... South Korea etc. We enjoy high reputation in our products' quality and price. "Honest,trust and mutual benefit "is our principle ... working load should not exceed 25% of stated values. Galvanized Drop-in Anchor with knurling